Quiz about GENERAL QA IN GENERAL AWARENESS

Question 1

Why is the offspring formed by asexual reproduction referred to as clone?

Accepted Answer

NA

Question 2

In 1665 Robert Hooke an English scientist published his book Micrographia in which he described that pieces of cork viewed under the microscope presented small cavities similar to pores which were filled with air. Based on later knowledge of what were the walls of those cavities constituted? What is the historical importance of that observation?

Accepted Answer

NA

Question 3

“Oh dear! The washing machine isn’t working. I haven’t got any clean clothes and I’ve got to go to work. What am I going to do?’ ‘Don’t worry. I’ll ___ them all ___. Just go to work.’ A) put away B) find out C) sort out D) clear up

Accepted Answer

NA

Question 4

Where do you find a washing machine soap powder and dirty socks?

Accepted Answer

NA

Question 5

If the thermal conductivity of the material through which heat is transferred is increased by a factor of 5 then the rate of heat transfer is………………….. A. decreased by a factor of 2 B. increased by a factor of 4 C. increased by a factor of 5 D. decreased by a factor of 5

Accepted Answer

NA

Question 6

The process of transfer of heat in liquids & gases is called as A. Conduction B. Radiation C. Convection D. absorption

Accepted Answer

NA

Question 7

Why conduction is only possible in solids A. particles of solids are closely packed B. heat is transferred from the hotter end to the colder end of an object. C. heat is transferred from the colder end to the hotter end of an object. D. both A and B

Accepted Answer

NA

Question 8

The working principle of a washing machine is1. Capillarity2. Centrifugation3. Decantation4. Diffusion

Accepted Answer

NA

Question 9

The eect of a material upon heat transfer rates is often expressed in terms of a number known as  A. Electrical conductivity B. conductivity C. thermal conductivity D. none of the above

Accepted Answer

NA

Question 10

In Conduction process the molecules of the solid pass the heat from one to anotherA. without themselves moving from their positions. B. themselves move from one place to another C. without themselves moving from one place to another. D. None of the above

Accepted Answer

NA

Question 11

Conduction through hollow radial one dimensional heat transfer is expressed as(a) Q = (cfrac2pi L(t_1-t_2)klog_er_2r_1)(b) Q = (cfrac2pi L(t_1-t_2)k(r_2r_1))(c) Q = (cfrac2pi Llog_e(t_1t_2)(r_2r_1)k)(d) Q = (cfrac2pi L(t_1-t_2)klog_er_2r_1)

Accepted Answer

NA

Question 12

Heat transfer from higher temperature to low temperature takes place according to (a) Fourier law (b) First law of thermodynamics (c) Second law of thermodynamics (d) Zeroth law of thermodynamics.

Accepted Answer

NA

Question 13

Consider an experiment given below.Take a tin can with a lid. Fill it approximately half with water. Heat it till the water boils. Remove from heat. Now pour fresh water over the can. What happens to the shape of the can?1. No change in the structure of the can2. Can gets distorted3. Can will expand4. Can will burst

Accepted Answer

NA

Question 14

It is the process of heat transfer from a hot body to a colder body without heating the space between the two is called as A. Conduction B. Radiation C. Convection D. absorption

Accepted Answer

NA

Question 15

The Eskimo makes his house i.e. igloo form ice. What is the reason for this?1. Only ice is available in polar regions.2. Ice does not allow cold air and water to come inside.3. The air between the ice walls prevents the inside heat from escaping.4. Ice is available free of cost other material will cost a lot.

Accepted Answer

NA

Question 16

The phenomenon of Brownian movement may be taken as evidence of(a) kinetic theory of matter(b) electromagnetic theory of radiation (c) corpuscular theory of light(d) photoelectric phenomenon

Accepted Answer

NA

Question 17

Write down the Lens makers formula and what do you mean by spherical aberration of a lens.

Accepted Answer

NA

Question 18

Define choke coil. Mention two applications of eddy currents.

Accepted Answer

NA

Question 19

Mention three advantages of a solar cell?

Accepted Answer

NA

Question 20

With respect to the wind turbine blades TSR means. (a) Tip Swift Ratio (b) Tip Sharp Ratio (c) Tip Speed Ratio(d) Tip Swing Ratio

Accepted Answer

NA

Question 21

Such trees grow only in the countries the climate of which is hot and DAMP. A) cold B) cool C) dry D) sunny E) windy

Accepted Answer

NA

Question 22

I run a __1__ firm which offers a complete range of security services. We have __2__ vehicles with special __3__ windows to transport money and other valuable items. We can supply trained __4__ to protect exhibits at art shows and jewelry displays. We can advise you if you think someone is trying to __5__ your phone or __6__ your private conversations at home or in the office with hidden microphones. We have ex-policemen whom you can hire as __7__ detectives and special __8__ to deliver your valuable parcels anywhere in the world. We can protect you or your children against possible __9__. 1. A) police B) security C) armored D) crime 2. A) bombed B) gunned C) armored D) weaponed 3. A) bullet-proof B) gun-proof C) weapon-proof D) army-proof 4. A) kidnappers B) couriers C) guards D) burglars 5. A) pit B) tip C) pat D) tap 6. A) ask B) stop C) cut D) bug 7. A) separate B) retired C) private D) self 8. A) kidnappers B) couriers C) guards D) detectives 9. A) kidnappers B) couriers C) guards D) detectives

Accepted Answer

NA

Question 23

One evening although he was nervous Joe decided to __1__ to his girlfriend Linda. She accepted his proposal they became __2__ and he gave her a ring. After a year they had saved enough money to get married (they were both over 18 so they did not need their parents’ __3__). Some people have a religious ceremony with a priest but Joe and Linda decided on a __4__ ceremony in a registry office. On the day of the __5__ Linda the __6__ was very calm but Joe the __7__ was nervous. Afterwards at the __8__ speeches were made and the guests drank a __9__ to the happy couple who finally left for a __10__ in Spain. 1. A) offer B) engage C) divorce D) propose 2. A) married B) engaged C) divorced D) parted 3. A) answer B) reception C) welcome D) consent 4. A) civil B) reception C) honeymoon D) religious 5. A) engagement B) reception C) wedding D) propose 6. A) bride B) bridesmaid C) bridegroom D) wife 7. A) bride B) bridesmaid C) bridegroom D) husband8. A) civil consentB) reception C) honeymoon D) engagement 9. A) juice B) toast C) water D) lemonade 10. A) wedding B) reception C) honeymoon D) engagement

Accepted Answer

NA

Question 24

During the night it was reported that a house was __1__ fire. Someone phoned the fire __2__ and a fire __3__ was sent to the house. One fire __4__ was __5__ by smoke and taken to hospital but in half an hour the fire was __6__ control and after another half hour it was finally __7__. At first the police thought it was an accident but later they found matches and a petrol can and began to suspect __8__. 1. A) under B) in C) on D) out 2. A) team B) brigade C) police D) bridge 3. A) engine B) brigade C) agent D) car 4. A) engine B) brigade C) police D) man 5. A) undercome B) overgone C) overcome D) overwent 6. A) under B) over C) in D) out 7. A) put in B) put by C) put off D) put out 8. A) accident B) arson C) burglar D) robbery

Accepted Answer

NA

Question 25

Ann was a very __1__ girl who often dreamed of love and marriage. She was especially __2__ to a young man called Michael who worked in the same office as she did and he was very __3__ on her too. They became friendly and one day Michael asked her to go out with him. Their first __4__ was a visit to the cinema and they both enjoyed the evening so much that they decided to __5__ together regularly. Michael was a bit untidy and rather young and Ann’s parents didn’t __6__ of him at first but Ann was a sensible __7__ girl and they had confidence in her. For a year or so everything went well but then somehow they slowly began to __8__ until finally they decided to __9__ their __10__. 1. A) realistic B) romantic C) mature D) immature 2. A) approved B) interested C) attracted D) involved 3. A) keen B) interested C) attracted D) involved 4. A) engagement B) dating C) relationship D) date 5. A) go in B) go out C) go off D) go up 6. A) approve B) interest C) attract D) involve 7. A) immature B) romantic C) mature D) crazy 8. A) settle down B) drift apart C) break in D) drift up 9. A) break down B) drift apart C) break in D) break off 10. A) relationship B) date C) marriage D) divorce

Accepted Answer

NA

Question 26

CARS AND DRIVING The amount of petrol a car uses is called the __1__ and it is measured in __2__. The petrol goes in the __3__. The way a car behaves (speed brakes acceleration etc.) is called the car’s __4__. We can talk about the back of a __5__ (car bus lorry etc.) but more often we use the word __6__. The speedometer fuel gauge and so on are called __7__. To __8__ means to pass another vehicle going in the same direction. If you have to go backwards you __9__. The outside surface of the car made of metal or fiberglass is called the __10__. Make sure you __11__ before turning left or right. 1. A) fuel consumption B) petrol tank C) petrol quality D) pipe 2. A) rear B) indicate C) mpg (miles per gallon) D) scales 3. A) fuel consumption B) petrol tank C) pipe D) tube 4. A) quality B) price C) performance D) action 5. A) truck B) petrol tank C) vehicle D) overtake 6. A) rear B) indicate C) wheel D) reverse 7. A) vehicles B) instruments C) performance D) body 8. A) speed up B) over speed C) overload D) overtake 9. A) run back B) look back C) return D) reverse 10. A) vehicle B) instruments C) indicate D) body 11. A) show B) indicate C) slow down D) reverse

Accepted Answer

NA

Question 27

Modern technology has brought about enormous improvements in communications and yet many people are still very worried __(1)__ using the latest computer technology. I am often __(2)__ to meet colleagues who still don’t know what the ‘e’ in e-mail stands for and they are too __(3)__ to ask. They assume you have to be skilled __(4)__ computers to send a message via e-mail but in fact it is __(5)__ thing in the world. It is also __(6)__ to send an e-mail message __(7)__ to send an ordinary letter or a ‘snail’ message which also takes __(8)__ longer. An e-mail message is only __(9)__ more expensive than a local telephone call to send; on top of the call itself you also have to pay a fee to your ‘server’. If you send a letter by __(10)__ mail it will take a couple of days to get there whereas an e-mail will not take __(11)__ than a few seconds. Once you become __(12)__ to using the system you will be __(13)__ at how much more __(14)__ it is than other means of communication. Of course before you have access to e-mail you will need a fairly __(15)__ computer which can be quite expensive.1. A) for B) about C) at D) with as 2. A) surprising B) irritating C) surprised D) irritated 3. A) embarrassing B) embarrassed C) tired D) tiring 4. A) about B) into C) to D) in 5. A) simplest B) the more simple C) simpler D) the simplest 6. A) cheaper B) more cheaper C) cheapest D) the cheaper 7. A) as B) than C) that D) from 8. A) much B) more C) as D) lot 9. A) little B) slightly C) less D) least 10. A) second-hand B) low-paid C) part-time D) first-class 11. A) more long B) longest C) as long D) longer 12. A) capable B) accustomed C) clever D) good 13. A) amazed B) puzzled C) experienced D) pleased 14. A) confident B) certain C) efficient D) skilful 15. A) strong B) great C) powerful D) large

Accepted Answer

NA

Question 28

A taxi sometimes called a __1__ is the most comfortable way to travel. You simply __2__ the taxi in the street or go to a taxi __3__ where there are several taxis waiting for example at a station. At the end of your journey you can see how much the __4__ is by looking at the __5__. You add a __6__ to this and that’s it. Very simple. But expensive! What about taking a bus? If it has- two floors it’s called a double- __7__ and you can get a good view from the top. If it has only one floor it’s called a(an) __8__-decker. Most buses have a twoperson __9__ the __10__ who drives of course and the __11__ who takes your money. Keep your ticket because a(an) __12__ might want to __13__ it. You catch a bus by waiting at a bus __14__. You can see where a bus is going because the __15__ is written on the front. But try to avoid the __16__ hour. Quicker than the bus is the underground (called the __17__ in London the __18__ in New York and the __19__ in Paris and many other cities). You buy your ticket at the ticket-office. Go down to the __20__ on the __21__ or in the __22__. The train comes. The __23__ doors open. You get on. You look at the map of the underground system Very simple. For longer distances take a train or a long distance bus usually called a __24__ which is slower but cheaper. The train is very fast. Put your luggage on the __25__ and sit and wait till you arrive. 1. A) rack B) tip C) lift D) cab 2. A) coach B) hail C) tube D) fare 3. A) rank B) center C) lift D) platform 4. A) price B) cost C) fair D) fare 5. A) crew B) check C) meter D) metro 6. A) rack B) tip C) lift D) cab 7. A) bus B) floor C) decker D) storey 8. A) single B) only C) one D) solo 9. A) crew B) team C) group D) metro 10. A) rider B) driver C) writer D) runner 11. A) accountant B) performer C) conductor D) inspector 12. A) accountant B) inspector C) conductor D) performer 13. A) crew B) check C) subway D) metro 14. A) center B) station C) stop D) platform 15. A) return B) destination C) name D) road 16. A) quick B) rush C) crowded D) bad 17. A) floor B) metro C) tube D) subway 18. A) subway B) lift C) metro D) tube 19. A) crew B) subway C) tube D) metro 20. A) rank B) storey C) stop D) platform 21. A) escalator B) cab C) ladder D) building 22. A) rack B) ladder C) lift D) stairs 23. A) colorful B) working C) gliding D) sliding 24. A) coach B) hail C) tube D) rack 25. A) rack B) tip C) lift D) cab

Accepted Answer

NA

Question 29

CURRENT AND DEPOSIT ACCOUNTS For regular everyday use most people prefer a __1__ account. This normally earns no __2__ but you are given a __3__ book which makes shopping and paying bills very easy. A(an) __4__ account earns interest but it’s not so easy to __5__ your money. You sometimes have to give a week’s __6__. 1. A) free B) current C) cheque D) withdraw 2. A) interest B) deposit C) notice D) dollar 3. A) notice B) note C) cheque D) withdraw 4. A) interest B) deposit C) finance D) current 5. A) pay B) invest C) cheque D) withdraw 6. A) notice B) current C) work D) money

Accepted Answer

NA

Question 30

A vessel completely filled wit water is suspended with help of strings from a spring balance as shwon in figure. A cork is plugged at the bottom of the vessel. If the initial reading of the spring balannce is `W_(0)`. Then the reading of the spring balance just after the cork is removed and the liquid begins to flow out will be `[rho=` density of liquid & A=coss -sectional area of narrow pipe]A. `W_(0)+rhogHA`B. `W_(0)+2rhogHA`C. `W_(0)-rhogHA`D. `W_(0)-2rhogHA`

Accepted Answer

NA

Question 31

We cut paper or cloth with a pair of ______. A) penknives B) knives C) scissors D) axes

Accepted Answer

NA

Question 32

AT THE AIRPORT When you travel by air you have to get to the airport early in order to __1__ about an hour before your flight. If you have a lot of luggage you can put it in a __2__ and push it to the __3__ where someone will __4__ your ticket and weigh your luggage. If you have __5__ it can be expensive. Your heavy luggage is put on a __6__ and carried away. A light bag is classed as __7__ and you can take it with you on to the plane. A(an) __8__ looks at your passport and a(an) __9__ checks your hand luggage before you go into the __10__ to wait till your flight is called. If you want to you can buy some cheap __11__ goods here. Then you see on the __12__ or you hear a(an) __13__ that you must __14__ your plane. You go through the __15__ then there is sometimes a __16__ before you actually enter the plane. When all the __17__ are __18__ and when the captain and his crew are ready in the cockpit the plane begins to __19__ to the end of the __20__. Finally permission is received from the control tower and the plane moves faster and faster in order to __21__. 1. A) check B) check in C) board D) security check 2. A) on board B) immigration officer C) trolley D) runway 3. A) check-in desk B) check in C) check D) security check 4. A) check in B) check C) pass D) depart 5. A) security guard B) hand luggage C) departure lounge D) excess baggage 6. A) conveyor belt B) take off C) security check D) board 7. A) excess baggage B) hand luggage C) runway D) departure lounge 8. A) security guard B) passenger C) security check D) immigration officer 9. A) security guard B) passenger C) security check D) immigration officer 10. A) departure gate B) departures board C) departure lounge D) board 11. A) announcement B) security guard C) duty free D) runway 12. A) departure gate B) departures board C) departure lounge D) board 13. A) announcement B) security guard C) duty free D) runway 14. A) depart B) guard C) lounge D) board 15. A) departure gate B) departures board C) departure lounge D) board 16. A) security guard B) luggage C) security check D) immigration officer 17. A) security guard B) passengers C) security check D) immigration officer 18. A) on board B) on trolley C) on lounge D) on runway 19. A) trolley B) taxi C) run D) take on 20. A) trolley B) taxi C) runway D) board 21. A) conveyor belt B) take off C) security check D) board

Accepted Answer

NA

Question 33

Some people are __1__ gamblers which means that they simply cannot stop __2__ on horses or playing games of __3__. It can be like a disease. If you’re lucky you can win a __4__ but if you’re unlucky it can __5__ your life. And most people are unlucky. The __6__ are always against the gambler. At the race course it is the __7__ who win and the __8__ who lose. From a game of roulette in the __9__ the house makes a profit the gambler often goes __10__. 1. A) punter B) betting C) broke D) compulsive 2. A) playing B) betting C) cheating D) racing 3. A) lucky B) odds C) fortune D) chance 4. A) wreck B) treasure C) fortune D) money 5. A) wreck B) odd C) fortune D) improve 6. A) wrecks B) odds C) fortunes D) luck 7. A) casinos B) bookmakers C) brokers D) horses 8. A) punters B) bookmakers C) brokers D) horses 9. A) casino B) race C) cafe D) gamble 10. A) breaking B) rich C) broke D) unlucky

Accepted Answer

NA

Question 34

We sew cloth with a __1__ and __2__. We tie up a parcel with __3__. Mountaineers use __4__ to keep together and avoid falling. To keep a baby’s nappy in place we use __5__. We use a hammer to knock a __6__ into wood. To pin a notice to a notice board we use a paper __7__. To keep pieces of cloth together in dressmaking we use __8__. We keep pieces of paper together firmly with a paper __9__. Different parts of a bicycle and other machines are kept together with __10__ and __11__. We use a screwdriver to put in or take out __12__. Large ships in port are kept in place with heavy iron __13__. The postman keeps all the letters for one street together with a __14__ made of elastic. 1. A) nail B) rope C) chain D) needle 2. A) rope B) thread C) chain D) string 3. A) rope B) thread C) chain D) string 4. A) rope B) thread C) wire D) string 5. A) drawing pin B) paper clip C) safety pin D) rubber band 6. A) pin B) nail C) nut D) bolt 7. A) drawing pin B) paper clip C) safety pin D) rubber band 8. A) pins B) nails C) nuts D) bolts 9. A) pin B) clip C) bolt D) band 10. A) pins B) nails C) nuts D) clips 11. A) pins B) nails C) clips D) bolts 12. A) pins B) needles C) bolts D) screws 13. A) ropes B) threads C) chains D) clips 14. A) drawing pin B) paper clip C) safety pin D) rubber band

Accepted Answer

NA

Question 35

IN THE AIR Flying is fun. I like being in a big __1__ with the __2__ (stewards and stewardesses) looking after me. They walk up and down the __3__ bringing meals and drinks; and if the flight is going through some __4__ they warn everybody that it might be bit bumpy and ask us to fasten our __5__. On a long flight I like listening to music through the __6__ available to all passengers and sometimes I have a sleep. I enjoy it all so much that I never want the plane to __7__. 1. A) airliner B) airline C) cabin D) land 2. A) airliners B) aisle C) cabin crew D) passengers3. A) airline B) aisle C) turbulence D) land 4. A) seat belts B) aisle C) turbulence D) land 5. A) seat belts B) seats C) belts D) land 6. A) airliners B) headphones C) telephones D) aisles 7. A) take off B) seat C) crew D) land

Accepted Answer

NA

Question 36

BIRTH When a woman is __1__ a baby we say that she is __2__ Babies are __3__ either at home or in the maternity __4__ of a hospital. It is the job of a doctor or a __5__ to __6__ new babies. The proud __7__ must soon decide what to __8__ the child. For the first six months of their lives most babies are taken out in __9__ and sleep in __10__. At eight months or so they learn to __11__ along the floor and they can usually walk soon after their first birthday. 1. A) delivering B) calling C) expecting D) parenting 2. A) pregnant B) midwife C) maternity D) crawling 3. A) expected B) born C) called D) crawled 4. A) ward B) center C) point D) institution 5. A) surgeon B) parent C) midwife D) nurse 6. A) deliver B) expect C) bear D) bring 7. A) pregnants B) surgeons C) midwife D) parents 8. A) deliver B) call C) tell D) say 9. A) cars B) prams C) trolleys D) streetcars 10. A) beds B) prams C) cots D) wards 11. A) sneak B) climb C) creep D) craw

Accepted Answer

NA

Question 37

When you buy a television radio or cassette recorder make sure it has a long enough __1__. __2__ it in at the most convenient __3__ in your room and then __4__ on. You normally __5__ the volume by turning aan __6__ and there are other __7__ as well. It is probably best to __8__ the appliance when it is not in use. If you have any trouble with it ask aan __9__ to look at it or take it back to the __10__ you bought it from. 1. A) lead B) leave C) control D) plug 2. A) adjust B) switch C) plug D) knob 3. A) control B) socket C) hole D) plug4. A) adjust B) switch C) plug D) knob 5. A) adjust B) switch C) plug D) knob6. A) control B) chain C) plug D) knob 7. A) leads B) sockets C) controls D) plugs 8. A) lead B) plug C) control D) unplug 9. A) fixer B) electrician C) mechanic D) repairmen 10. A) dealer B) electrician C) repairmen D) mechanic

Accepted Answer

NA

Question 38

There’s a big new sports centre near my home. There are football __1__ tennis and basketball __2__ swimming __3__ a sports hall with two boxing __4__ and even a skating __5__. There is also a separate athletics __6__ where 20000 __7__ can watch the track __8__ on the track and the __9__ events such as jumping and throwing in the grass centre. The __10__ get ready in modern changing rooms and the __11__ time and measure the events with modern equipment. A huge electronic __12__ shows the results. 1. A) courts B) rings C) pitches D) pools 2. A) pools B) courts C) rings D) pitches 3. A) pools B) courts C) rings D) pitches 4. A) pitches B) rings C) pools D) courts 5. A) pools B) courts C) stadium D) rink 6. A) pool B) court C) stadium D) ring 7. A) audience B) spectators C) watchers D) viewers 8. A) matches B) plays C) events D) shows 9. A) area B) central C) track D) field 10. A) athletes B) players C) gamblers D) officials 11. A) athletes B) viewers C) spectators D) officials 12. A) scoreboard B) television C) video D) cinema

Accepted Answer

NA

Question 39

What’s the Category?baseball basketball tennis soccer

Accepted Answer

NA

Question 40

A dot on a paper appears to be raised by 4 cm when viewed normally through a glass slab placed on it. Calculate the thickness of the glass slab if its refractive index is 1.5

Accepted Answer

NA

Question 41

An object AB is placed parallel and close to the optical axis between focus F and center of curvature C of a converging mirror of focale length f as shown in Figure. Then A. image of A will be closer than that of B from the mirrorB. image of AB will be parallel to the optical axisC. image of AB will be straight line inclined to the optical axisD. image of AB will not be straight line

Accepted Answer

NA

Question 42

The nature of the image formed by the concave mirror when the object is placed between C and F isA. Real and virtualB. Real and invertedC. Real and ErectD. Virtual and Erect

Accepted Answer

NA

Question 43

A spherical mirror and a thin spherical lens have each a focal length of -15cm. The mirror and the lens are likely to beA. Both concaveB. Both convexC. The mirror is concave and the lens is convexD. The mirror is convex but the lens is concave

Accepted Answer

NA

Question 44

When an object is kept within the focus of a concave mirror an enlarged image is formed behind the mirror. This image isA. RealB. InvertedC. Virtual and invertedD. Virtual and erect

Accepted Answer

NA

Question 45

Let `v_(1)` be the frequency of series limit of Lyman series `v_(2)` the frequency of the first line of Lyman series and `v_(3)` the frequency of series limit of Balmer series. Then which of the following is correct ?A. `v_(1)-v_(2)=v_(3)`B. `v_(1)+v_(3)=v_(2)`C. `v_(1)+v_(2)=v_(3)`D. `v_(1)-v_(3)=2v_(1)`

Accepted Answer

NA

Question 46

Two resistances are connected in the two gaps of a meter bridge. The balance point is `20 cm` from the zero end. When a resistance `15 Omega` is connected in series with the smaller of two resistance the null point+ shifts to `40 cm`. The smaller of the two resistance has the value.A. 12B. 24C. 36D. 48

Accepted Answer

NA

Question 47

In meter bridge or wheatstone bridge for measurement of resistance the known and the unknown resistances are interchanged. The error so removed is(a) End correction(b) Index error(c) Due to temperature effect(d) Random error

Accepted Answer

NA

Question 48

In the connection shown in the figure initially the switch K is open and the capacitor is uncharged. Then the switch is closed and the capacitor is charged up to the steady state and the switch is opened again. Determine the values indicated by the values indicated by the ammeter. `[Given V_0 = 30 V R_1 = 10k Omega R_2 = 5kOmega`]  . just after closing the switchA. 2mAB. 3 mAC. 0 mAD. none of these

Accepted Answer

NA

Question 49

In a class AB amplifier with sinusoidal input signal the output current flows are1. Half the cycle2. Full cycle3. Less than half cycle4. More than half cycle

Accepted Answer

NA

Question 50

Two bulbs marked 200 watt-250 volts and 100 watt-250 volts are joined in series to 250 volts supply. Power consumed in circuit is1. 67 watt2. 33 watt3. 100 watt4. 300 watt

Accepted Answer

NA

Explore topic-wise InterviewSolutions in Current Affairs.

Why is the offspring formed by asexual reproduction referred to as clone?

“Oh, dear! The washing machine isn’t working. I haven’t got any clean clothes, and I’ve got to go to work. What am I going to do?’ ‘Don’t worry. I’ll _ them all _. Just go to work.’ A) put / away B) find / out C) sort / out D) clear / up

Where do you find a washing machine, soap powder and dirty socks?

If the thermal conductivity of the material through which heat is transferred is increased by a factor of 5, then the rate of heat transfer is………………….. A. decreased by a factor of 2 B. increased by a factor of 4 C. increased by a factor of 5 D. decreased by a factor of 5

The process of transfer of heat in liquids & gases is called as: A. Conduction B. Radiation C. Convection D. absorption

Why conduction is only possible in solids: A. particles of solids are closely packed B. heat is transferred from the hotter end to the colder end of an object. C. heat is transferred from the colder end to the hotter end of an object. D. both A and B

The working principle of a washing machine is1. Capillarity2. Centrifugation3. Decantation4. Diffusion

The eect of a material upon heat transfer rates is often expressed in terms of a number known as : A. Electrical conductivity B. conductivity C. thermal conductivity D. none of the above

In Conduction process the molecules of the solid pass the heat from one to another,:A. without themselves moving from their positions. B. themselves move from one place to another C. without themselves moving from one place to another. D. None of the above

Conduction through hollow, radial one dimensional heat transfer is expressed as(a) Q = \(\cfrac{2\pi L(t_1-t_2)k}{log_er_2/r_1}\)(b) Q = \(\cfrac{2\pi L(t_1-t_2)}{k(r_2/r_1)}\)(c) Q = \(\cfrac{2\pi Llog_e(t_1/t_2)}{(r_2/r_1)k}\)(d) Q = \(\cfrac{2\pi L(t_1-t_2)k}{log_er_2/r_1}\)

Heat transfer from higher temperature to low temperature takes place according to (a) Fourier law (b) First law of thermodynamics (c) Second law of thermodynamics (d) Zeroth law of thermodynamics.

It is the process of heat transfer from a hot body to a colder body without heating the space between the two is called as: A. Conduction B. Radiation C. Convection D. absorption

The phenomenon of Brownian movement may be taken as evidence of(a) kinetic theory of matter(b) electromagnetic theory of radiation (c) corpuscular theory of light(d) photoelectric phenomenon

Write down the Lens maker's formula and what do you mean by spherical aberration of a lens.

Define choke coil. Mention two applications of eddy currents.

Mention three advantages of a solar cell?

With respect to the wind turbine blades, TSR means. (a) Tip Swift Ratio (b) Tip Sharp Ratio (c) Tip Speed Ratio(d) Tip Swing Ratio

Such trees grow only in the countries the climate of which is hot and DAMP. A) cold B) cool C) dry D) sunny E) windy

We cut paper or cloth with a pair of ______. A) penknives B) knives C) scissors D) axes

What’s the Category?baseball, basketball, tennis, soccer

A dot on a paper appears to be raised by 4 cm when viewed normally through a glass slab placed on it. Calculate the thickness of the glass slab if it's refractive index is 1.5

The nature of the image formed by the concave mirror when the object is placed between C and F is:A. Real and virtualB. Real and invertedC. Real and ErectD. Virtual and Erect

A spherical mirror and a thin spherical lens have each a focal length of -15cm. The mirror and the lens are likely to beA. Both concaveB. Both convexC. The mirror is concave and the lens is convexD. The mirror is convex but the lens is concave

When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. This image isA. RealB. InvertedC. Virtual and invertedD. Virtual and erect

In meter bridge or wheatstone bridge for measurement of resistance, the known and the unknown resistances are interchanged. The error so removed is(a) End correction(b) Index error(c) Due to temperature effect(d) Random error

In a class AB amplifier with sinusoidal input signal, the output current flows are1. Half the cycle2. Full cycle3. Less than half cycle4. More than half cycle

Two bulbs marked 200 watt-250 volts and 100 watt-250 volts are joined in series to 250 volts supply. Power consumed in circuit is1. 67 watt2. 33 watt3. 100 watt4. 300 watt

1.	Why is the offspring formed by asexual reproduction referred to as clone?
Answer» A clone is a group of morphologically and genetically identical individuals. In the process of asexual reproduction, only one parent is involved and there is no fusion of the male and the female gamete. As a result, the offsprings so produced are morphologically and genetically similar to their parents and are thus, called clones.

2.	In 1665 Robert Hooke, an English scientist, published his book Micrographia, in which he described that pieces of cork viewed under the microscope presented small cavities similar to pores which were filled with air. Based on later knowledge, of what were the walls of those cavities constituted? What is the historical importance of that observation?
Answer» The walls of the cavities observed by Hooke was the walls of the plant cells that form the tissue. The observation led to the discovery of the cells, a fact only possible after the invention of the microscope. In that work, Hooke established the term “cell”, now widely used in Biology, to designate those cavities are seen under the microscope.

3.	“Oh, dear! The washing machine isn’t working. I haven’t got any clean clothes, and I’ve got to go to work. What am I going to do?’ ‘Don’t worry. I’ll ___ them all ___. Just go to work.’ A) put / away B) find / out C) sort / out D) clear / up
Answer» Correct option is D) clear / up

4.	Where do you find a washing machine, soap powder and dirty socks?
Answer» Correct answer is in the laundry

5.	If the thermal conductivity of the material through which heat is transferred is increased by a factor of 5, then the rate of heat transfer is………………….. A. decreased by a factor of 2 B. increased by a factor of 4 C. increased by a factor of 5 D. decreased by a factor of 5
Answer» C. increased by a factor of 5

7.	Why conduction is only possible in solids: A. particles of solids are closely packed B. heat is transferred from the hotter end to the colder end of an object. C. heat is transferred from the colder end to the hotter end of an object. D. both A and B
Answer» D. both A and B

11.	Conduction through hollow, radial one dimensional heat transfer is expressed as(a) Q = \(\cfrac{2\pi L(t_1-t_2)k}{log_er_2/r_1}\)(b) Q = \(\cfrac{2\pi L(t_1-t_2)}{k(r_2/r_1)}\)(c) Q = \(\cfrac{2\pi Llog_e(t_1/t_2)}{(r_2/r_1)k}\)(d) Q = \(\cfrac{2\pi L(t_1-t_2)k}{log_er_2/r_1}\)
Answer» (a) Q = \(\cfrac{2\pi L(t_1-t_2)k}{log_er_2/r_1}\)

12.	Heat transfer from higher temperature to low temperature takes place according to (a) Fourier law (b) First law of thermodynamics (c) Second law of thermodynamics (d) Zeroth law of thermodynamics.
Answer» (c) Second law of thermodynamics

14.	It is the process of heat transfer from a hot body to a colder body without heating the space between the two is called as: A. Conduction B. Radiation C. Convection D. absorption
Answer» B. Radiation

19.	Mention three advantages of a solar cell?
Answer» (i) Solar cells have no moving parts (ii) Requires little maintenance (iii) They can be set up in remote areas

21.	Such trees grow only in the countries the climate of which is hot and DAMP. A) cold B) cool C) dry D) sunny E) windy
Answer» Correct option is C) dry

30.	A vessel completely filled wit water is suspended with help of strings from a spring balance as shwon in figure. A cork is plugged at the bottom of the vessel. If the initial reading of the spring balannce is `W_(0)`. Then the reading of the spring balance just after the cork is removed and the liquid begins to flow out will be `[rho=` density of liquid & A=coss -sectional area of narrow pipe]A. `W_(0)+rhogHA`B. `W_(0)+2rhogHA`C. `W_(0)-rhogHA`D. `W_(0)-2rhogHA`
Answer» Correct Answer - D Momentum of water following out of the tube in time `Delta=Deltap=rhoAv^(2)Deltat` where `v=sqrt(2gH)` `thereforeFDeltat=Deltap=rhoAv^(2)Deltat` or `F=rhoAv^(2)=2rhogHA` `therefore` Reading of spring balance `=W_(0)-2rhogHA`

31.	We cut paper or cloth with a pair of ______. A) penknives B) knives C) scissors D) axes
Answer» Correct option is C) scissors

39.	What’s the Category?baseball, basketball, tennis, soccer
Answer» Correct answer is sports

41.	An object AB is placed parallel and close to the optical axis between focus F and center of curvature C of a converging mirror of focale length f as shown in Figure. Then, A. image of A will be closer than that of B from the mirrorB. image of AB will be parallel to the optical axisC. image of AB will be straight line inclined to the optical axisD. image of AB will not be straight line
Answer» Correct Answer - A (Tough). The image of a point closer to the focus will be father. As the transverse magnification of B will be more than A, the image of AB will be inclined to the optical axis.

42.	The nature of the image formed by the concave mirror when the object is placed between C and F is:A. Real and virtualB. Real and invertedC. Real and ErectD. Virtual and Erect
Answer» Correct Answer - B

43.	A spherical mirror and a thin spherical lens have each a focal length of -15cm. The mirror and the lens are likely to beA. Both concaveB. Both convexC. The mirror is concave and the lens is convexD. The mirror is convex but the lens is concave
Answer» Correct Answer - A

44.	When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. This image isA. RealB. InvertedC. Virtual and invertedD. Virtual and erect
Answer» Correct Answer - D

45.	Let `v_(1)` be the frequency of series limit of Lyman series, `v_(2)` the frequency of the first line of Lyman series and `v_(3)` the frequency of series limit of Balmer series. Then which of the following is correct ?A. `v_(1)-v_(2)=v_(3)`B. `v_(1)+v_(3)=v_(2)`C. `v_(1)+v_(2)=v_(3)`D. `v_(1)-v_(3)=2v_(1)`
Answer» Correct Answer - A `V=nlambda (1)/(lambda)=n/V` `1/lambda=R((1)/(P^(2))-(1)/(n^(2)))` `v=Rc ((1)/(P^(2))-(1)/(n^(2)))` `v=Rc ((1)/(P^(2))-1/(n^(2)))" series limit n"=oo` `v_(2)=Rc ((1)/(2^(2))-(1)/(3^(2)))=Rc=((1)/(4)-(1)/(9))` `v_(1)=Rc((1)/(2^(2))=(Rc)/(4))` `v_(3)=Rc((1)/(3^(2))=(Rc)/(9))` `therefore v_(1)-v_(3)=Rc((1)/(4)-(1)/(9))` `therefore v_1-v_3=v_2` `therefore v_1-v_2=v_3`.

46.	Two resistances are connected in the two gaps of a meter bridge. The balance point is `20 cm` from the zero end. When a resistance `15 Omega` is connected in series with the smaller of two resistance, the null point+ shifts to `40 cm`. The smaller of the two resistance has the value.A. 12B. 24C. 36D. 48
Answer» Correct Answer - B `l_(x)=40cm, I_(R)=60cm` `x/R=(l_(x))/(l_(R))=(40)/(60)=2/3 .....(i)` `therefore (x+30)/(R)=(60)/(40)=3/2` `therefore (x+30)/(R)=3/2` `therefore 2(X+30)rArr 3R` `R=(2(x+30))/(3).........(ii)` From (i) and (iii) `(X)/(2((x+30))/(3)))=2/3` `(3x)/(2(x+30))=2/3` `9x=4x+120` `5x=120 rArr x=24Omega`

Explore topic-wise InterviewSolutions in Current Affairs.

Why is the offspring formed by asexual reproduction referred to as clone?

“Oh, dear! The washing machine isn’t working. I haven’t got any clean clothes, and I’ve got to go to work. What am I going to do?’ ‘Don’t worry. I’ll ___ them all ___. Just go to work.’ A) put / away B) find / out C) sort / out D) clear / up

Where do you find a washing machine, soap powder and dirty socks?

If the thermal conductivity of the material through which heat is transferred is increased by a factor of 5, then the rate of heat transfer is………………….. A. decreased by a factor of 2 B. increased by a factor of 4 C. increased by a factor of 5 D. decreased by a factor of 5

The process of transfer of heat in liquids &amp; gases is called as: A. Conduction B. Radiation C. Convection D. absorption

Why conduction is only possible in solids: A. particles of solids are closely packed B. heat is transferred from the hotter end to the colder end of an object. C. heat is transferred from the colder end to the hotter end of an object. D. both A and B

The working principle of a washing machine is1. Capillarity2. Centrifugation3. Decantation4. Diffusion

The eect of a material upon heat transfer rates is often expressed in terms of a number known as : A. Electrical conductivity B. conductivity C. thermal conductivity D. none of the above

In Conduction process the molecules of the solid pass the heat from one to another,:A. without themselves moving from their positions. B. themselves move from one place to another C. without themselves moving from one place to another. D. None of the above

Conduction through hollow, radial one dimensional heat transfer is expressed as(a) Q = \(\cfrac{2\pi L(t_1-t_2)k}{log_er_2/r_1}\)(b) Q = \(\cfrac{2\pi L(t_1-t_2)}{k(r_2/r_1)}\)(c) Q = \(\cfrac{2\pi Llog_e(t_1/t_2)}{(r_2/r_1)k}\)(d) Q = \(\cfrac{2\pi L(t_1-t_2)k}{log_er_2/r_1}\)

Heat transfer from higher temperature to low temperature takes place according to (a) Fourier law (b) First law of thermodynamics (c) Second law of thermodynamics (d) Zeroth law of thermodynamics.

It is the process of heat transfer from a hot body to a colder body without heating the space between the two is called as: A. Conduction B. Radiation C. Convection D. absorption

The phenomenon of Brownian movement may be taken as evidence of(a) kinetic theory of matter(b) electromagnetic theory of radiation (c) corpuscular theory of light(d) photoelectric phenomenon

Write down the Lens maker's formula and what do you mean by spherical aberration of a lens.

Define choke coil. Mention two applications of eddy currents.

Mention three advantages of a solar cell?

With respect to the wind turbine blades, TSR means. (a) Tip Swift Ratio (b) Tip Sharp Ratio (c) Tip Speed Ratio(d) Tip Swing Ratio

Such trees grow only in the countries the climate of which is hot and DAMP. A) cold B) cool C) dry D) sunny E) windy

We cut paper or cloth with a pair of ______. A) penknives B) knives C) scissors D) axes

What’s the Category?baseball, basketball, tennis, soccer

A dot on a paper appears to be raised by 4 cm when viewed normally through a glass slab placed on it. Calculate the thickness of the glass slab if it's refractive index is 1.5

The nature of the image formed by the concave mirror when the object is placed between C and F is:A. Real and virtualB. Real and invertedC. Real and ErectD. Virtual and Erect

A spherical mirror and a thin spherical lens have each a focal length of -15cm. The mirror and the lens are likely to beA. Both concaveB. Both convexC. The mirror is concave and the lens is convexD. The mirror is convex but the lens is concave

When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. This image isA. RealB. InvertedC. Virtual and invertedD. Virtual and erect

In meter bridge or wheatstone bridge for measurement of resistance, the known and the unknown resistances are interchanged. The error so removed is(a) End correction(b) Index error(c) Due to temperature effect(d) Random error

In a class AB amplifier with sinusoidal input signal, the output current flows are1. Half the cycle2. Full cycle3. Less than half cycle4. More than half cycle

Two bulbs marked 200 watt-250 volts and 100 watt-250 volts are joined in series to 250 volts supply. Power consumed in circuit is1. 67 watt2. 33 watt3. 100 watt4. 300 watt

“Oh, dear! The washing machine isn’t working. I haven’t got any clean clothes, and I’ve got to go to work. What am I going to do?’ ‘Don’t worry. I’ll _ them all _. Just go to work.’ A) put / away B) find / out C) sort / out D) clear / up

The process of transfer of heat in liquids & gases is called as: A. Conduction B. Radiation C. Convection D. absorption

48.	In the connection shown in the figure, initially the switch K is open and the capacitor is uncharged. Then the switch is closed, and the capacitor is charged up to the steady state and the switch is opened again. Determine the values indicated by the values indicated by the ammeter. `[Given V_0 = 30 V, R_1 = 10k Omega, R_2 = 5kOmega`] . just after closing the switchA. 2mAB. 3 mAC. 0 mAD. none of these
Answer» Correct Answer - C c. Just after closing, capacitor behaves as short circuit and all current flows through it, hence ammeter reads zero. After a long time, capacitor behaves as an open circuit and no current flows through it. Therefore, `i = v_0/(R_1+R_2) = 30/(10+5) = 2mA` Just after reopening, potential difference across `R_2` remains the same initially as charge on capacitor does not charge initially. Hence, current remains the same.

49.	In a class AB amplifier with sinusoidal input signal, the output current flows are1. Half the cycle2. Full cycle3. Less than half cycle4. More than half cycle
Answer» Correct Answer - Option 4 : More than half cycle In class AB amplifier with sinusoidal input signal, the output current flows are more than half the cycle.

50.	Two bulbs marked 200 watt-250 volts and 100 watt-250 volts are joined in series to 250 volts supply. Power consumed in circuit is1. 67 watt2. 33 watt3. 100 watt4. 300 watt
Answer» Correct Answer - Option 1 : 67 watt The voltage is same. The bulbs operated in series. Then the power consumed in the series circuit will be \(= \frac{{200 \times 100}}{{200 + 100}} = 66.67\;W\)