100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS

1.	Which of the following is chiral as well optically active?A. `Me - NH-Et`B. cis`-`cycloocteneC. D. `Et.overset(cdot)CHMe`
Answer» Correct Answer - C (A) `-` Chiral bur optically inactive due to rapid inverion. (B) `-` Achiral (C ) `-` Sulphur has lone pair also and no inversion occurs. (D) `-` Planar and inversion occurs rapidly.

Discussion

2.	`FeCr_2O_4+Na_2CO_3+O_2overset("Fusion")to[X]underset(H_2O)overset(H^+)to[Y]underset(H_2O_2)overset(H^+)to[Z]` Which of the following statements is true for the compounds [X],[Y] and [Z] ?A. In all three compounds , the chromium is in +6 oxidation stateB. [Z] is a deep blue -violet coloured compound which decomposes rapidly in aqueous solution into `Cr^(3+)` and dioxygenC. Saturated solution of [Y] gives bright organge compound , chromic anhydride, with concentrated `H_2SO_4`D. All of these
Answer» Correct Answer - D `4FeCr_2O_4 8Na_2CO_3+7O_2overset("Fusion")tooverset(+VI)(Na_2CrO_4)underset(H_2O)overset(H^+)tooverset(+VI)(Na_2Cr_2O_7)overset(H^+ // H_2O_2)tooverset(+VI)(CrO(O_2)_2)`("deep blue violet")overset(H_2O)toO_2+H_2O+Cr^(3+)` `Na_2Cr_2O_7+H_2SO_4to2CrO_3("chromic anhydride")+Na_2SO_4+H_2O`

Discussion

3.	What is the basis of long form of periodic table?
Answer» Correct Answer - Atomic number.

Discussion

4.	Assertion `:-` `CO_(2)` is carried in plasma mainly as `HCO_(3)` ions. Reason `:-` `23%` `CO_(2)` transport is in the form of `HCO_(3)` ions.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are False
Answer» Correct Answer - C

Discussion

5.	When 2 mol of \( CoCl _{3}\left( NH _{3}\right)_{5} \) is treated with excess amount of \( AgNO _{3}, 4 \) mol of \( AgCl \) is obtained. The conductivity of solution will correspond to A. \( 1: 3 \) electrolyteB. 1: 1 electrolyte C. \( 1: 2 \) electrolyte D. 3:1 electrolyte
Answer» Correct option is (c) electrolyte \(\because\) 2 mol of CoCl₃(NH₃)₅, on treated with excess amount of AgNO₃ gives 4 mol Agcl, it means two chlorine atoms are in outer sphere. \(\underset{2\,mol}{[Co(NH_3)_5Cl]Cl_2}\) + \(\underset{excess}{AgNO_3 }\) \(\longrightarrow\) \(\underset{2\,mol}{[Co(NH_3)_5]Cl}^{+2}+\underset{4mol}{Agcl}\) Conductivity of solution, due to presence of Ag⁺, \(NO_3^-\) and [Co(NH₃)₅Cl]⁺² ions only. \(\therefore\) The conductivity of solution will correspond 1 : 2 electrolyte.

5.

When 2 mol of \( CoCl _{3}\left( NH _{3}\right)_{5} \) is treated with excess amount of \( AgNO _{3}, 4 \) mol of \( AgCl \) is obtained. The conductivity of solution will correspond to A. \( 1: 3 \) electrolyteB. 1: 1 electrolyte C. \( 1: 2 \) electrolyte D. 3:1 electrolyte

Answer»

Correct option is (c) electrolyte

\(\because\) 2 mol of CoCl₃(NH₃)₅, on treated with excess amount of AgNO₃ gives 4 mol Agcl, it means two chlorine atoms are in outer sphere.

\(\underset{2\,mol}{[Co(NH_3)_5Cl]Cl_2}\) + \(\underset{excess}{AgNO_3 }\) \(\longrightarrow\) \(\underset{2\,mol}{[Co(NH_3)_5]Cl}^{+2}+\underset{4mol}{Agcl}\)

Conductivity of solution, due to presence of Ag⁺, \(NO_3^-\) and [Co(NH₃)₅Cl]⁺² ions only.

\(\therefore\) The conductivity of solution will correspond 1 : 2 electrolyte.

Discussion

6.	The enthalpies of formation of \( N _{2} O \) and NO at \( 298 K \) are 82 and \( 90 kJ mol { }^{-1} \). The enthalpy of the reaction : \( N _{2} O ( g )+1 / 2 O _{2}( g ) \longrightarrow 2 NO ( g ) \) is (A) \( -8 kJ \) (B) \( 98 kJ \) (C) \( -74 kJ \) (D) \( 8 kJ \).
Answer» \(\Delta H_r = \Delta H_{NO}-(\Delta H_{N_2O} + \Delta H_{O_2} )\) = 90KJ x 2 - (82 + 0) = 180 - 82 = 98 KJ

6.

The enthalpies of formation of \( N _{2} O \) and NO at \( 298 K \) are 82 and \( 90 kJ mol { }^{-1} \). The enthalpy of the reaction : \( N _{2} O ( g )+1 / 2 O _{2}( g ) \longrightarrow 2 NO ( g ) \) is (A) \( -8 kJ \) (B) \( 98 kJ \) (C) \( -74 kJ \) (D) \( 8 kJ \).

Answer»

\(\Delta H_r = \Delta H_{NO}-(\Delta H_{N_2O} + \Delta H_{O_2} )\)

= 90KJ x 2 - (82 + 0)

= 180 - 82

= 98 KJ

Discussion

7.	Sodium is there in a solution with 10 kg of solvent \( \left(\right. \) Density \( \left.=5 Kg / m ^{3}\right) \) and concentration 4 molar. 1) 23 grams 2) 92 grams 3) 184 grams 4) 276 grams
Answer» We have given, concentration of sodium solution = 4M density of solvent = 5kg/dm³ \(\therefore\) Volume of 10 Kg solvent = 10/5 m3 = 2m³ \(\because\) 1 dm³ = 1 L \(\therefore\) 2dm³ = 2 L as we know molarity = \(\cfrac{\frac{weight\,of\,solute}{molecule\,wt\,of\,solute}}{Volume of solution(L)}\) ⇒ 4 = \(\cfrac{\frac{w}{23}}{2L}\) ⇒ w = 4 x 2 x 23 w = 184 gram.

7.

Sodium is there in a solution with 10 kg of solvent \( \left(\right. \) Density \( \left.=5 Kg / m ^{3}\right) \) and concentration 4 molar. 1) 23 grams 2) 92 grams 3) 184 grams 4) 276 grams

Answer»

We have given,

concentration of sodium solution = 4M

density of solvent = 5kg/dm³

\(\therefore\) Volume of 10 Kg solvent = 10/5 m3 = 2m³

\(\because\) 1 dm³ = 1 L

\(\therefore\) 2dm³ = 2 L

as we know

molarity = \(\cfrac{\frac{weight\,of\,solute}{molecule\,wt\,of\,solute}}{Volume of solution(L)}\)

⇒ 4 = \(\cfrac{\frac{w}{23}}{2L}\)

⇒ w = 4 x 2 x 23

w = 184 gram.

Discussion

8.	Fullerene reacts with potassium to form............(A) K39C57 (B) K37C63 (C) K40C62 (D) K35C60
Answer» Fullerene reacts with potassium to form K₃₅C₆₀.

Discussion

9.	“The people who I looked after are very well.” She said that the people who she _____ after _____ very well.A) were looking / areB) have looked / areC) would looked / wereD) had looked / were
Answer» Correct option is D) had looked / were

Discussion

10.	He ___ his English in the morning, he ___ it in the evening. A) doesn’t have/is having B) don’t have/had C) doesn’t have/has D) didn’t have/have E) hadn’t/will have
Answer» Correct option is C) doesn’t have/has

Discussion

11.	“You can move in immediately.” She told me I _____ immediately. A) will move in B) would move in C) can move in D) could move in
Answer» Correct option is D) could move in

Discussion

12.	His time after school was given ______ to sports. A) in B) over C) down
Answer» Correct option is B) over

Discussion

13.	This must be a special type of writing paper, for it gives ______ a very pleasant smell. A) on B) off C) up
Answer» Correct option is B) off

Discussion

14.	A woman’s work ___ never done. A) are B) is C) will D) would E) were
Answer» Correct option is B) is

Discussion

15.	This is the 7th year Ann and Mary ___ this school. A) has attended B) have been attending C) had been attending D) are attending E) were attending
Answer» Correct option is B) have been attending

Discussion

16.	When I _____ the letter, I _____ it away. A) read / had thrown B) had read / had thrown C) had read / threw D) read / threw
Answer» Correct option is C) had read / threw

Discussion

17.	He _____ read faster a few years ago. A) can B) could C) might D) must
Answer» Correct option is B) could

Discussion

18.	As soon as he _____ his driving test, he _____ a car. A) passed / bought B) had passed / bought C) passes / had bought D) passed / had bought
Answer» Correct option is B) had passed / bought

Discussion

19.	_____ you pass the salt, please? A) Do B) Are C) Should D) Could
Answer» Correct option is D) Could

Discussion

20.	Ursula _____ four brothers and sisters.A) haveB) hasC) haven’tD) having
Answer» Correct option is B) has

Discussion

21.	They _____ camping any more. A) go B) doesn’t go C) don’t go D) have gone
Answer» Correct option is C) don’t go

Discussion

22.	Choose the appropriate answers for the following questions.Will you please pass me the salt? A) I can. B) Please. C) I shall. D) Why not? E) Here it is.
Answer» Correct option is E) Here it is.

Discussion

23.	Could you take a photo _____ me, please? A) in B) on C) with D) of
Answer» Correct option is D) of

Discussion

24.	I ____ to sleep until I _____ my homework. A) don’t go / did B) had not gone / had done C) didn’t go / did D) didn’t go / had done
Answer» Correct option is D) didn’t go / had done

Discussion

25.	Most days the shop _____ at 10.00 p.m. A) sells B) opened C) closes D) run
Answer» Correct option is C) closes

Discussion

26.	What is meant by the term cell division? Why is cell division necessary
Answer» Cell division is the process by which a parent cell divide into two or more daughter cells . 1) One reason is that cell division is important for the growth of an organism. 2) It is also important for cells to divide so that they can remain efficient. 3) If the cell gets too big then it can't work as efficiently or as quickly as it needs to.

26.

What is meant by the term cell division? Why is cell division necessary

Answer»

Cell division is the process by which a parent cell divide into two or more daughter cells .

1) One reason is that cell division is important for the growth of an organism.

2) It is also important for cells to divide so that they can remain efficient.

3) If the cell gets too big then it can't work as efficiently or as quickly as it needs to.

Discussion

27.	In emergency situation, blood pressure is controlled bya) adrenalineb) prolactinc) thyroidd) ganodotrophins
Answer» a) adrenaline

Discussion

28.	Define external fertilization. Mention its disadvantages.
Answer» External Fertilization is defined as fusion of sperm with ovum outside the body of female. Usually it takes place in water as in frogs. Disadvantages:- (a) Offsprings are extremely vulnerable to predators thus threatning their survival upto adulthood. (b) Development of embryo in the external environment like water is endangered due to unfavourable change in climatic conditions like temp., rainfall etc.

28.

Define external fertilization. Mention its disadvantages.

Answer»

External Fertilization is defined as fusion of sperm with ovum outside the body of female. Usually it takes place in water as in frogs.

Disadvantages:-

(a) Offsprings are extremely vulnerable to predators thus threatning their survival upto adulthood.

(b) Development of embryo in the external environment like water is endangered due to unfavourable change in climatic conditions like temp., rainfall etc.

Discussion

29.	The theroy of lamarck is based upon which facts? Write it.
Answer» The theory of Lamarck are based upon following facts– (a) Tendency to increase in size. (b) Direct influence of environment. (c) Effect of use and disuse of organs. (d) Inheritance of acquired characters.

29.

The theroy of lamarck is based upon which facts? Write it.

Answer»

The theory of Lamarck are based upon following facts–

(a) Tendency to increase in size.

(b) Direct influence of environment.

(c) Effect of use and disuse of organs.

(d) Inheritance of acquired characters.

Discussion

30.	What is Homologous organs and Analogous organs?
Answer» Homologous organ – The organs which have the same fundamental structure but different in functions are called homologous organs. These organs follow the same basic plan of organisation during their development. Ex-forelimbs of frog, lizard, pigeon and whale have the same basic structural plan but the fore limbs of these animals have different shape and function. Analogous organ – The organs which have similar function but different in their structural details and origin are called analogous organs. Ex- the basic structure of the wings of an insect is different from wings of a bird, bat and pterodactyl however, their functions are similar.

30.

What is Homologous organs and Analogous organs?

Answer»

Homologous organ – The organs which have the same fundamental structure but different in functions are called homologous organs. These organs follow the same basic plan of organisation during their development. Ex-forelimbs of frog, lizard, pigeon and whale have the same basic structural plan but the fore limbs of these animals have different shape and function.

Analogous organ – The organs which have similar function but different in their structural details and origin are called analogous organs. Ex- the basic structure of the wings of an insect is different from wings of a bird, bat and pterodactyl however, their functions are similar.

Discussion

31.	What is homologous organ? Explain it with example.
Answer» Those organs which are similar in origin and structure but differ in their function are called homologous organs. For example, Wing of bird and bat and fore limb of men and frog are homologous organ as they show similarity in origin and structure but functions differently.

Discussion

32.	What is performance Hugo de vries worked progress?
Answer» In the first decade of 20^th century, Hugo de Vries worked on evening primerose and forwarded the facts of mutation and gave theory of mutation which is responsible for the origin of species. He called them saltation (long step of large mutation).

Discussion

33.	What was the place of origin & two main features of Australopithecine man?
Answer» About two million years ago, australopithecine man originated in grassland of East Africa. The two important features were– (a) They used stone made arms in hunting. (b) They were frugivorous.

33.

What was the place of origin & two main features of Australopithecine man?

Answer»

About two million years ago, australopithecine man originated in grassland of East Africa. The two important features were–

(a) They used stone made arms in hunting.

(b) They were frugivorous.

Discussion

34.	During isolation of streptomycin, clear broth is- (a) discarded (b) subjected to liquid-liquid extraction chromatography (c) subjected to ultra filtration(d) subjected to solubilization of proteins
Answer» (b) subjected to liquid-liquid extraction chromatography

Discussion

35.	What is lactation?
Answer» The mammary glands of the female undergo differentation during pregnancy and start producing milk towards the end of pregnancy by the process called lactation.

Discussion

36.	What are the hormones secreted by placenta?
Answer» The hormones secreted by placenta are– (a) Human chorionic gonadotropin (HCG) (b) Human placental lactogen (HPL) (c) Estrogen (d) Progestogens etc.

36.

What are the hormones secreted by placenta?

Answer»

The hormones secreted by placenta are–

(a) Human chorionic gonadotropin (HCG)

(b) Human placental lactogen (HPL)

(c) Estrogen

(d) Progestogens etc.

Discussion

37.	Read the following lines and answer question on the basis of the same:Testing for COVID-19 using PCRThe objective of COVID-19 testing is to identify part of the corona viral genome in the patient sample. As, there is insufficient viral RNA to detect directly in the patient sample, a process called reverse transcription polymerase chain reaction (RT-PCR) is used for amplification. Short single stranded pieces of DNA called primers recognize unique RNA sequences within the viral genome. When double-stranded DNA copy of the target region of the viral RNA is produced, it undergoes successive rounds of amplification during which the DNA undergoes denaturation. Two primers anneal to their target sequences and then Taq polymerase extends a new strand. The number of copies of the target region of the viral genome doubles with each cycle. In practice, the virus is typically detected in 35 cycles of PCR, after which the number of DNA copies produced will be 235. PCR based diagnosis is faster, safer and more specific because it does not use live pathogens.(i) The sequence of steps in PCR is- (a) Denaturation, annealing, extension (b) Annealing, denaturation, extension (c) Extension, annealing, denaturation (d) Denaturation, extension, annealing(ii) A primer is- (a) short ss piece of DNA (b) short ds piece of DNA (c) short ds piece of RNA (d) Either (b) or (c)(iii) After n cycles, the number of DNA copies produced are- (a) n2(b) 2n(c) n x 2(d) n ÷ 2(iv) Taq DNA polymerase synthesizes DNA at a temperature of around 700 C as it is- (a) thermophilic (b) thermostable (c) thermoregulator (d) thermolabile(v) Culture based approaches for detecting pathogens, as compared to PCR based assays area) are-(a) Faster, safer but less specific (b) Slower but safer and more specific(c) Slower, less safer and less specific (d) Slower, less safer but more specific.
Answer» (i) (a) Denaturation, annealing, extension (ii) (a) short ss piece of DNA (iii) (b) 2ⁿ (iv) (a) thermostable (v) (c) Slower, less safer and less specific

37.

Read the following lines and answer question on the basis of the same:Testing for COVID-19 using PCRThe objective of COVID-19 testing is to identify part of the corona viral genome in the patient sample. As, there is insufficient viral RNA to detect directly in the patient sample, a process called reverse transcription polymerase chain reaction (RT-PCR) is used for amplification. Short single stranded pieces of DNA called primers recognize unique RNA sequences within the viral genome. When double-stranded DNA copy of the target region of the viral RNA is produced, it undergoes successive rounds of amplification during which the DNA undergoes denaturation. Two primers anneal to their target sequences and then Taq polymerase extends a new strand. The number of copies of the target region of the viral genome doubles with each cycle. In practice, the virus is typically detected in 35 cycles of PCR, after which the number of DNA copies produced will be 235. PCR based diagnosis is faster, safer and more specific because it does not use live pathogens.(i) The sequence of steps in PCR is- (a) Denaturation, annealing, extension (b) Annealing, denaturation, extension (c) Extension, annealing, denaturation (d) Denaturation, extension, annealing(ii) A primer is- (a) short ss piece of DNA (b) short ds piece of DNA (c) short ds piece of RNA (d) Either (b) or (c)(iii) After n cycles, the number of DNA copies produced are- (a) n2(b) 2n(c) n x 2(d) n ÷ 2(iv) Taq DNA polymerase synthesizes DNA at a temperature of around 700 C as it is- (a) thermophilic (b) thermostable (c) thermoregulator (d) thermolabile(v) Culture based approaches for detecting pathogens, as compared to PCR based assays area) are-(a) Faster, safer but less specific (b) Slower but safer and more specific(c) Slower, less safer and less specific (d) Slower, less safer but more specific.

Answer»

(i) (a) Denaturation, annealing, extension

(ii) (a) short ss piece of DNA

(iii) (b) 2ⁿ

(iv) (a) thermostable

(v) (c) Slower, less safer and less specific

Discussion

38.	Read the following lines and answer question on the basis of the same:Tissue Culture in Rose PropagationIn January 2014, an experiment was conducted to explore the intricacies of in vitro propagation of Rosa hybrida from explants. The purpose was to determine the proper basal medium and growth regulators for these tissue culture techniques. Plant hormones play a pivotal role in growth and differentiation of cultured cells and tissues. An acidic pH is also very important. There are several types of media like MS, LS, B5 and Nitsch's medium, and the choice of media is dictated by the plant species, variety or plant part. However, the most extensively used nutrient medium is MS medium, which was developed by Murashige and Skoog in 1962. Rosa hybrida L. species are propagated around the world, using seed propagation, micropropagation, stem cuttings, budding, grafting, and even tissue culture. To increase the productivity of roses, somatic hybridization is also thought of.(i) To enhance the productivity through micropropagation, which medium is generally used.(a) MS medium (b) LS (c) B5 (d) Nitsch's medium(ii) An optimum pH is very important in plant cell tissue culture. It is usually: (a) 8.7 (b) 7.7 (c) 9.7 (d) 5.7(iii) In order to enhance the productivity of rose plants, which of the following could be an effective strategy? (a) Somatic hybridization (b) Generation of haploids (c) Embryo rescue (d) Generation of triploids(iv) Which technique is not included in vegetative propagation?(a) Layering propagation (b) Transgenic (c) Budding (d) Grafting(v) The term explant used in the passage is … (a) any part of the plant (b) only shoot (c) only root (d) only leaf
Answer» (i) (a) MS medium (ii) (d) 5.7 (iii) (a) Somatic hybridisation (iv) (b) transgenic (v) (a) any part of the plant

38.

Read the following lines and answer question on the basis of the same:Tissue Culture in Rose PropagationIn January 2014, an experiment was conducted to explore the intricacies of in vitro propagation of Rosa hybrida from explants. The purpose was to determine the proper basal medium and growth regulators for these tissue culture techniques. Plant hormones play a pivotal role in growth and differentiation of cultured cells and tissues. An acidic pH is also very important. There are several types of media like MS, LS, B5 and Nitsch's medium, and the choice of media is dictated by the plant species, variety or plant part. However, the most extensively used nutrient medium is MS medium, which was developed by Murashige and Skoog in 1962. Rosa hybrida L. species are propagated around the world, using seed propagation, micropropagation, stem cuttings, budding, grafting, and even tissue culture. To increase the productivity of roses, somatic hybridization is also thought of.(i) To enhance the productivity through micropropagation, which medium is generally used.(a) MS medium (b) LS (c) B5 (d) Nitsch's medium(ii) An optimum pH is very important in plant cell tissue culture. It is usually: (a) 8.7 (b) 7.7 (c) 9.7 (d) 5.7(iii) In order to enhance the productivity of rose plants, which of the following could be an effective strategy? (a) Somatic hybridization (b) Generation of haploids (c) Embryo rescue (d) Generation of triploids(iv) Which technique is not included in vegetative propagation?(a) Layering propagation (b) Transgenic (c) Budding (d) Grafting(v) The term explant used in the passage is … (a) any part of the plant (b) only shoot (c) only root (d) only leaf

Answer»

(i) (a) MS medium

(ii) (d) 5.7

(iii) (a) Somatic hybridisation

(iv) (b) transgenic

(v) (a) any part of the plant

Discussion

39.	What are the temperature and humidity maintained in an OT?(a) T = 20 – 26 ℃, H = 20% – 30% air exchanges = 7 – 8 per hour(b) T = 18 – 22 ℃, H = 40% – 50% air exchanges = 10 – 12 per hour(c) T = 10 – 12 ℃, H = 10% – 30% air exchanges = 9 – 10 per hour(d) T = 30 – 35 ℃, H = 50% – 60% air exchanges = 15 – 20 per hour
Answer» Correct option is (b) T = 18 – 22 ℃, H = 40% – 50% air exchanges = 10 – 12 per hour Best explanation: An OT is normally cool without being cold. The humidity and temperature need to be maintained so that the body does not go into any other kind of shock. Once under anaesthesia, the normal functions like homeostasis of the body can also get disrupted thus an external maintenance is needed. It is important for fresh air to keep circulating in the room so that the risk of infection goes down. The number of exchanges can’t be too high to avoid cooling nor can they be too low or else infectious particles may settle down.

Discussion

40.	The cells of the small intestine have a special structure that helps in the absorption of food. This structure is ________(a) villi(b) pseudopodia(c) flagella(d) attachment sites
Answer» Right answer is (a) villi Easiest explanation: The inner lining of the intestines are lined with villi which help increase the surface area of absorption. These villi have blood and lymph supply and have microvilli which further increase the surface area for absorption.

Discussion

41.	Best milch breed of cattle is :A. Red SinghiB. DeomiC. Holstein-FriesianD. Sahiwal
Answer» Correct Answer - C

Discussion

42.	What is a fistula?(a) The connection between two arteries(b) The connection between two veins(c) The connection between two capillaries(d) The connection between artery and vein
Answer» Correct choice is (d) The connection between artery and vein Easy explanation: A fistula is also a disease but in this case, it is a connection between an artery and vein. It provides an access point for better withdrawal and injection of blood, saline etc. It is surgically created by creating a small longitudinal incision in an artery and vein facing each other and then they are joined together. This provides a better access point.

Discussion

43.	Chewing of food is called ______(a) Emulsification(b) Mastication(c) Injection(d) Peristalses
Answer» Correct option is (b) Mastication To explain I would say: The chewing process is called as mastication. The incisors bit and cut, the canines rip, the premolars and molars chew. Since the molars and premolars are at the back of the mouth, they receive the most muscle and skeletal support. These teeth cause mastication.

Discussion

44.	The oxygen flush system provides a higher flow of oxygen of ________ L/min when the patient’s need for oxygen is greater than the amount the breathing circuit can provide.(a) 25-50(b) 35-75(c) 55-95(d) 65-105
Answer» Right choice is (b) 35-75 To explain: The ventilator monitors the amount of oxygen being inhaled and exhaled by the body. At times, there can arise a situation where even under the normal settings of the ventilator the person can feel shortness of breath. In such cases, oxygen flush is given in which more than normal amount of oxygen is given at a higher pressure to stabilize the person.

Discussion

45.	Which of the following is known as laughing gas?(a) CO2(b) N2O(c) NO2(d) B2O
Answer» Right option is (b) N2O The best explanation: N2O is also known as laughing gas. It is also used as a mild anesthetic. It is used in dentistry and as a carrier gas during general anesthesia. It is administered via inhalation, absorbed through diffusion and removed via the normal respiration process.

Discussion

46.	Name any three problems that occur in a Laser printer. How will you remove the problems?
Answer» Most Common Printer Problems and Their Solutions Paper Jams. Paper jams are perhaps the most loathsome of all printer problems. Poor Print Quality. When it comes to smudges, faded type and poor image quality, there are a couple of issues that could be going on. Nothing is Printing. ... WiFi Printing Takes too Long.

Discussion

47.	Why is the paper coming from the laser printer hot? Explain.
Answer» Laser printer uses photocopying technology. It uses a positively charged drum and negatively charged toner (dry powder). A laser beam is used to scan the page to be printed on the drum with positive charge and then rolled through a reservoir of negatively charged toner. It uses a combination of heat and pressure to adhere the dry powder to the paper. That is why, the paper coming from the laser printer is hot.

Discussion

48.	A particle performing SHM starts equilibrium position and its time period is 16 seconds. After 2 seconds its velocity is `pi m//s`. Amplitude of oscillation is `(cos 45^(@) = 1/(sqrt(2)))`A. `2sqrt2m`B. `4sqrt2m`C. `6sqrt2m`D. `8sqrt2m`
Answer» Correct Answer - D Displacement of the particle `=x=A sin omegat` Velocity of the particle `=v=(dx)/(dt)=A omega cos omegat` `v=pi m//s, T=16s, omega=(2pi)/(T)=(2pi)/(16)"rad/s"` `therefore pi=A xx (pi)/(8)xx cos""(pi)/(8)xx2` `therefore 1=(A)/(8)cos ""pi/4=(A)/(8).(1)/(sqrt2)` `therefore A=8sqrt2m`

Discussion

49.	A semicircle of radius R = 5m with diameter AD as shown in figure. Two particles 1 and 2 are at points A and B on shown diameter at t = 0 and move along segments AC and BC with constant speeds `u_(1)` and `u_(2)` respectively. Then the value of `(u_(1))/(u_(2))` for both particles to reach point C simultaneously will be : A. `(5sqrt(2))/(4)m//sec`B. `(2sqrt(2))/(5)m//sec`C. `2sqrt(2)m//sec`D. `sqrt((5)/(4)m//sec`
Answer» Correct Answer - D A semicircle ……………….. From geometry `BC = 4m and AC = 2sqrt(5)m` . `(AC)/(u_(1)) = (BC)/(u_(2)) or (u_(1))/(u_(2)) = (AC)/(BC) = (2sqrt(5))/(4)`

Discussion

50.	_____ includes a series of postures and breathing exercises practiced to achieve control of body and mind a) Meditation b) Physical Exercise c) Listening music d) Yoga
Answer» Correct answer is d) Yoga Yoga is answer option d) Yoga

50.

_____ includes a series of postures and breathing exercises practiced to achieve control of body and mind a) Meditation b) Physical Exercise c) Listening music d) Yoga

Answer»

Correct answer is d) Yoga

Yoga is answer

option d) Yoga

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following is chiral as well optically active?A. `Me - NH-Et`B. cis`-`cycloocteneC. D. `Et.overset(cdot)CHMe`

What is the basis of long form of periodic table?

When 2 mol of \( CoCl _{3}\left( NH _{3}\right)_{5} \) is treated with excess amount of \( AgNO _{3}, 4 \) mol of \( AgCl \) is obtained. The conductivity of solution will correspond to A. \( 1: 3 \) electrolyteB. 1: 1 electrolyte C. \( 1: 2 \) electrolyte D. 3:1 electrolyte

The enthalpies of formation of \( N _{2} O \) and NO at \( 298 K \) are 82 and \( 90 kJ mol { }^{-1} \). The enthalpy of the reaction : \( N _{2} O ( g )+1 / 2 O _{2}( g ) \longrightarrow 2 NO ( g ) \) is (A) \( -8 kJ \) (B) \( 98 kJ \) (C) \( -74 kJ \) (D) \( 8 kJ \).

Sodium is there in a solution with 10 kg of solvent \( \left(\right. \) Density \( \left.=5 Kg / m ^{3}\right) \) and concentration 4 molar. 1) 23 grams 2) 92 grams 3) 184 grams 4) 276 grams

Fullerene reacts with potassium to form............(A) K39C57 (B) K37C63 (C) K40C62 (D) K35C60

“The people who I looked after are very well.” She said that the people who she _____ after _____ very well.A) were looking / areB) have looked / areC) would looked / wereD) had looked / were

He ___ his English in the morning, he ___ it in the evening. A) doesn’t have/is having B) don’t have/had C) doesn’t have/has D) didn’t have/have E) hadn’t/will have

“You can move in immediately.” She told me I _____ immediately. A) will move in B) would move in C) can move in D) could move in

His time after school was given ______ to sports. A) in B) over C) down

This must be a special type of writing paper, for it gives ______ a very pleasant smell. A) on B) off C) up

A woman’s work ___ never done. A) are B) is C) will D) would E) were

This is the 7th year Ann and Mary ___ this school. A) has attended B) have been attending C) had been attending D) are attending E) were attending

When I _____ the letter, I _____ it away. A) read / had thrown B) had read / had thrown C) had read / threw D) read / threw

He _____ read faster a few years ago. A) can B) could C) might D) must

As soon as he _____ his driving test, he _____ a car. A) passed / bought B) had passed / bought C) passes / had bought D) passed / had bought

_____ you pass the salt, please? A) Do B) Are C) Should D) Could

Ursula _____ four brothers and sisters.A) haveB) hasC) haven’tD) having

They _____ camping any more. A) go B) doesn’t go C) don’t go D) have gone

Choose the appropriate answers for the following questions.Will you please pass me the salt? A) I can. B) Please. C) I shall. D) Why not? E) Here it is.

Could you take a photo _____ me, please? A) in B) on C) with D) of

I ____ to sleep until I _____ my homework. A) don’t go / did B) had not gone / had done C) didn’t go / did D) didn’t go / had done

Most days the shop _____ at 10.00 p.m. A) sells B) opened C) closes D) run

What is meant by the term cell division? Why is cell division necessary

In emergency situation, blood pressure is controlled bya) adrenalineb) prolactinc) thyroidd) ganodotrophins

Define external fertilization. Mention its disadvantages.

The theroy of lamarck is based upon which facts? Write it.

What is Homologous organs and Analogous organs?

What is homologous organ? Explain it with example.

What is performance Hugo de vries worked progress?

What was the place of origin &amp; two main features of Australopithecine man?

During isolation of streptomycin, clear broth is- (a) discarded (b) subjected to liquid-liquid extraction chromatography (c) subjected to ultra filtration(d) subjected to solubilization of proteins

What is lactation?

What are the hormones secreted by placenta?

The cells of the small intestine have a special structure that helps in the absorption of food. This structure is ________(a) villi(b) pseudopodia(c) flagella(d) attachment sites

Best milch breed of cattle is :A. Red SinghiB. DeomiC. Holstein-FriesianD. Sahiwal

What is a fistula?(a) The connection between two arteries(b) The connection between two veins(c) The connection between two capillaries(d) The connection between artery and vein

Chewing of food is called ______(a) Emulsification(b) Mastication(c) Injection(d) Peristalses

The oxygen flush system provides a higher flow of oxygen of ________ L/min when the patient’s need for oxygen is greater than the amount the breathing circuit can provide.(a) 25-50(b) 35-75(c) 55-95(d) 65-105

Which of the following is known as laughing gas?(a) CO2(b) N2O(c) NO2(d) B2O

Name any three problems that occur in a Laser printer. How will you remove the problems?

Why is the paper coming from the laser printer hot? Explain.

A particle performing SHM starts equilibrium position and its time period is 16 seconds. After 2 seconds its velocity is `pi m//s`. Amplitude of oscillation is `(cos 45^(@) = 1/(sqrt(2)))`A. `2sqrt2m`B. `4sqrt2m`C. `6sqrt2m`D. `8sqrt2m`

_____ includes a series of postures and breathing exercises practiced to achieve control of body and mind a) Meditation b) Physical Exercise c) Listening music d) Yoga

“The people who I looked after are very well.” She said that the people who she _ after _ very well.A) were looking / areB) have looked / areC) would looked / wereD) had looked / were

He _ his English in the morning, he _ it in the evening. A) doesn’t have/is having B) don’t have/had C) doesn’t have/has D) didn’t have/have E) hadn’t/will have

When I _ the letter, I _ it away. A) read / had thrown B) had read / had thrown C) had read / threw D) read / threw

As soon as he _ his driving test, he _ a car. A) passed / bought B) had passed / bought C) passes / had bought D) passed / had bought

I to sleep until I _ my homework. A) don’t go / did B) had not gone / had done C) didn’t go / did D) didn’t go / had done

What was the place of origin & two main features of Australopithecine man?