Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

How does the Resistance of a Conductor Vary with its length?

Answer»

Directly proportional OR As length increases, resistance increases.

2.

For preparing French fries apart from frying which other method of cooking is generally used-  a) Poaching b) Braising c) Blanching d) Roasting

Answer»

Correct answer is c) Blanching 

3.

Which color is taken by nuclei after Hematoxylin –Eosin staining? a) Green b) Pink c) Blue/Black

Answer»

c) Blue/Black

Blue/Black colour is taken by nuclei after Hematoxylin –Eosin staining.

4.

Write any one advantage of Eddy Current.

Answer»

1. Induction furnace 

2. Magnetic braking in trains

5.

State Ampere’s circuital law.

Answer»

The line integral of magnetic field around a closed path in vacuum is equal to p-o times the total current passing the closed path.

6.

When does the force acting on a charged particle moving in a uniform magnetic field is Maximum?

Answer»

Charged particle moves perpendicular to field OR θ = 90° where θ is the angle between direction of magnetic field and velocity.

7.

Waxy potatoes are used for making-  a) Salads b) Koftas c) Cutlets d) Halwa

Answer»

Correct answer is a) Salads

8.

I _____ the traffic in Bangkok.A) playB) haveC) hateD) has

Answer»

Correct option is  C) hate

9.

I _____ extra money teaching computer studies. A) earn B) earns C) win D) buy

Answer»

Correct option is  A) earn

10.

Define declination?

Answer»

The angle between the geographic meridian and magnetic meridian at that place.

11.

What is Retentivity?

Answer»

The property of magnetic material to retain magnetism even in the absence of magnetizing field.

12.

What is the significance of using sign convention in mirrors/Lenses?

Answer»

While studying the reflection of light by spherical mirrors and the formation of images by spherical mirrors, a set of sign conventions are needed to learn that is required to measure the focal length, a distance of object or image from the mirror, and the magnification of the mirror.

13.

Two vectors having equal magnitudes A make an angle `theta` with eahc other. Find the magnitude and direction of the resultant.

Answer» The magnitude of the resultant will be
` B= sqrt(A^2+A^2+2A.A cos theta)`
`sqrt(2A^2(1+costheta)= sqrt(4A^2cos^2 theta/2)`
` 2A cos theta/2`
The resultant will make an angle `alpha ` with the first vector where
`tan alpha= (A sintheta)/(A + A costheta)=(@A sin theta/2 cos theta/2)/(2A cos^2 theta/2)=tan theta/2`
or, ` alpha= theta/2`
Thus, the resultant of two equal vectors bisects the angle between them.
14.

Is there any variation of mass of a charged body? Give reason.

Answer»

Charging a body is done by changing the number of negative charge carriers. Electrons, with mass 9.11 × 10-31 Kg, can be added to a body to increase its negative charge over positive charge and thus making it negatively charged. This very tiny mass is negligible for much of study purposes. But, most accurately, this still can be considered as a change in mass of a charged body with respect to the same body in the neutral state.

15.

Explain the types of forces.

Answer» Explain the types of forces

Types of Force

Force is a physical cause that can change the state of motion or the dimensions of an object. There are two types of forces based on their applications:

  1. Contact Force

  2. Non-Contact Force

Contact Force:

Forces that act on a body either directly or through a medium are called contact forces.

Examples of contact forces are:

  • Muscular Force

  • Mechanical Force

  • Frictional Force

We can make use of the muscular force of animals like bullocks, horses, and camels to get the activities done. The frictional force is another type of contact force, which acts between a pair of a surface in contact and tends to oppose the motion of one surface over the other.

Non-Contact Force:

Forces that act through spaces without making direct contact with the body are called non-contact forces.

Examples of non-contact forces are:

  • Gravitational Force

  • Electrostatic Force

  • Magnetic Force

The force exerted by a magnet on other magnets is called magnetic force. Magnetic force and electrostatic force act on an object from a distance, that’s the reason they are non-contact forces. The strength of gravity is an attractive force that is exerted by the Earth on objects, which make them fall to the land. The weight of a body is the force that is pulled by the earth towards the center.

16.

IUPAC name of CH2=CH-CH(CH3)-CH3

Answer» 3 methyl butene
17.

Assertion(A): 8 grams of methane occupies 11.207 liters of volume at 273K and 1atm pressureReason (R): One mole of any gas at STP occupies 22.414 litres of volume The correct answer is1. Both A and R are true and R is the correct explanation of A2. Both A and R are true but R is not the correct explanation of A3. A is true, R is not true4. A is not true but R is true

Answer»

Correct option(1)

Explanation:

8 g of CH4 occupies 11.2 lit at STP one mole of any gas occupies 22.4 lit at STP

∴ (1) is the correct answer.

18.

write an attractive fair well speech as an outgoing student. (own words).

Answer» Dear friends, students, and teachers, this is a day of celebration. Let us make this farewell the best farewell in the history of our school. Some tears will be shed, some smiles will be shared as we bid farewell to our school life. You will always relish this moment for the rest of your lives.
19.

Most of the women sent____applications to the director of the program. A) their B) her C) her own D) them

Answer»

Correct option is A) their

20.

Gold_____to be the most alliable metal of all. A) know B) has known C) is known D) knows

Answer»

Correct option is C) is known

21.

_____enjoyed their meal. A) Every guest B) Neither guest C) Each of the guests D) Some guests

Answer»

Correct option is D) Some guests

22.

The cause of the series of disasters____not yet known, but an enquiry has been set up to find out what happened. A) are B) is C) has D) were

Answer»

Correct option is B) is

23.

In which Indian state is Dabu printing practised. which involves applying earth in delicate patterns to cloth and then dipping in dye?1. Rajasthan2. Orissa3. Andhra Pradesh4. Assam

Answer» Correct Answer - Option 1 : Rajasthan

The correct answer is Rajasthan.

  • Dabu printing is practiced in Rajasthan.

  • Dabu Printing is a hand block printing technique that is practiced in the land of Rajasthan.
  • Dabu printing is a variation of Mud Resist Printing, whose origin can be traced about 675 A.D.
  • At present, it is acknowledged in the village of Akola, in the Chittorgarh district of Rajasthan.
  • This style of printing is grouped with other traditional Rajasthani Handicrafts like Sanganeri & Bagru. 

 

  • Pattachitra is a traditional painting of Odisha.
  • Kalamkari Hand Painting is a traditional painting of Andhra Pradesh.
24.

A resisting paste ‘dabu’ is made up of: a. clay and gum b. clay and sand c. gum and sand d. clay & mordant

Answer»

Correct option: a. clay and gum

25.

A car travels 105 km in 3 hours and a train travels 252 km in 4 hours. The ratio of speed of the car to that of the train is:1. 9 : 112. 3 : 53. 2 : 74. 5 : 9

Answer» Correct Answer - Option 4 : 5 : 9

Given:

Distance traveled by car = 105 km.

Time taken by car = 3 hours

Distance traveled by train = 252 km.

Time taken by train = 4 hours

Formula Used:

Speed = Distance/Time

Calculation:

Speed of car = 105/3 = 35 km/h

Speed of train = 252/4 = 63 km/h

The ratio of the speed of the car to speed of train,

\(\frac{{{\rm{Speed\;of\;car}}}}{{{\rm{speed\;of\;train}}}} = \frac{{35}}{{63}} = \frac{5}{9}\)

∴ The ratio of the speed of the car to speed of the train is 5 : 9

 

26.

A man covered a certain distance at an average speed of 100 km/hr and came back at the speed of 80 km/hr. find the average speed of the man during the whole journey?  1. \(22\frac{2}{9}\) km/hr2. \(44\frac{4}{9}\) km/hr3. \(88\frac{8}{9}\) km/hr4. 45 km/hr5. 55 km/hr

Answer» Correct Answer - Option 3 : \(88\frac{8}{9}\) km/hr

Given:

Speed while going (S1) = 100 km/hr

Speed while returning (S2) = 80 km/hr

Formula used:

Average speed = 2S1S2/(S1 + S2)

Calculation:

Average speed =  \(\frac{{2 \times 100\times 80}}{{100 + 80}}\)  

⇒ 16000 / 180

⇒  \(88\frac{8}{9}\)

∴ The average speed of the man during the whole journey is \(88\frac{8}{9}\) km/hr

27.

A boy covers a distance of 60 km at a speed of 15 km/h by his motorcycle. Then he covers a distance of 48 km at a speed of 12 km/h by his car. Find the average speed of boy1. 11.5 km/h2. 7.5 km/h3. 9.5 km/h4. 10.5 km/h5. 13.5 km/h

Answer» Correct Answer - Option 5 : 13.5 km/h

Given:

Distance covered by motorcycle = 60 km

Speed of motorcycle = 15 km/h

Distance covered by car = 48 km

Speed of car = 12 km/h

Formula Used:

Average Speed = Total Distance/Total Time

Time = Distance/Speed     

Calculation:

Time taken by motorcycle = 60/15 = 4 hours

Time taken by car = 48/12 = 4 hours

Total distance = Distance covered by motorcycle + Distance covered by car

Total distance = 60 + 48 = 108 km

Total time = 4 + 4 = 8 hours

Average speed = 108/8 = 13.5 km/h

∴ The Average speed of the boy is 13.5 km/h.

 
28.

If `f(x) = x^(2)` and `g(x) = (1)/(x^(3))`. Then the value of `(f(x)+g(x))/(f(-x)-g(-x))` at `x = 2` isA. `(33)/(31)`B. `(31)/(33)`C. `1`D. None of these

Answer» Correct Answer - C
If `f(x)=x^(2)` …………
`f(x)=x^(2)`
`g(x)= (1)/(x^(3))`
`f(2)=4`
`f(-2)=4`
`g(2)=1//8`
`g(-2)= -1//8`
`(f(2)+g(2))/(f(-2)g(-2)) = (4+(1)/(8))/(4+(1)/(8)) = 1`
29.

Management activities

Answer»

Management process/functions involve 4 basic activities:

  1. Planning and Decision Making: Determining Courses of Action,
  2. Organizing: Coordinating Activities and Resources,
  3. Leading: Managing, Motivating and Directing People,
  4. Controlling: Monitoring and Evaluating activities.
1.Planning

2.Organizing

3.leading

4.controlling
30.

A particle starts its motion from rest under the action of a constant force. If the distance covered in first `10 s` is `s_1` and the covered in the first `20 s` is `s_2`, then.A. `s_(2)=2s_(1)`B. `s_(2)=3s_(1)`C. `s_(2)=4s_(1)`D. `s_(2)=s_(1)`

Answer» Correct Answer - C
A particle ………..
If the particle is moving in a straight line under the action of a constant force then distance covered
`s=ut+(1)/(2)at^(2)`
Since the body starts from rest `u = 0`
`:. s = (1)/(2)at^(2)`
Now, `s_(1)= (1)/(2)a(10)^(2)` ............(i)
and, `s_(2)= (1)/(2)a(20)^(2)` .............. (ii)
Deividing Eq (i) and Eq (ii) we get
`(s_(1))/(s_(2)) = ((10)^(2))/((20)^(2))`
`implies s_(2) = 4s_(1)`
31.

Position of a particle at any instant is given by `x = 3t^(2)+1` , where x is in m and t in sec. Its average velocity in the time interval `t = 2` sec to `t = 3` sec will be :A. `15 m//s`B. `12 m//s`C. `18 m//s`D. `6 m//s`

Answer» Correct Answer - A
Position of ………..
`t = 3sec. x = 3xx3^(2)+1=28m`
`t = 2sec. x =3xx2^(2)+1=13m`
Diplacement `= 28 -13=15m`
`V_(avg) = (Delta x)/(Delta t) = (15m)/(1sec) = 15 m//sec`
32.

How many seconds does Dinesh take to cover a distance of 400 m, if he runs at a speed of 20 km/hr.1. 72 sec2. 70 sec3. 60 sec4. 12 sec

Answer» Correct Answer - Option 1 : 72 sec

GIVEN:

Dinesh speed = 20 km/hr = 20 × 5/18 = 50/9 m/s

and Distance = 400 m

FORMULA USED:

Distance = Speed × Time

CALCULATION:

Distance = Speed × Time

⇒ 400 = 50/9 × Time 

⇒ Time = 72 sec

∴ Time required to cover a distance of 400 m with speed of 50/9 m/s = 72 seconds

33.

ABC Crackers Ltd., a fire-cracker manufacturing company launched some new products on the eve of Diwali in the market, which attracted many buyers. To meet the increased demand, the company employed people from nearby village where there is a lot of unemployment. Because of the good behaviour of the management with the employees, more and more people wanted to join the company. As the products were in great demand in the market, a competitor imitated the products. The products of the competitor were not accepted by the consumers as it was a status symbol to buy the product of ABC Crackers Ltd. because of their quality.(a) Identify and explain the product -related decision because of which consumers preferred of ABC Crackers Ltd.(b) Also identify any two values which ABC Crackers Ltd. wanted to communicate to the society.

Answer»

(a) The product related decision, due to which the consumers preferred the products of ABC Crackers Ltd., is the 'quality and the brand name'. Due to the good and standard quality of the product provided by the company, it was able to maintain its brand name in the market. Hence, the consumers started to demand the products of ABC Crackers Ltd. because of its goodwill and reputation.

(b) Following are the values that ABC Crackers Ltd. wanted to communicate to the society:

i. Providing employment opportunities to decrease unemployment in the villages 

ii. Providing good quality products to the consumers

34.

How many types of oscillations are there

Answer»

Under damped oscillations
Critically damped oscillations

35.

If the open-loop gain decreases due to the frequency or the effects of the system aging, providing that βG is still very large, then the overall system gain ______ (Where G is Open loop voltage gain and β is the feedback fraction)1. does not change very much2. increases very much3. decreases very much4. fluctuates accordingly inputs

Answer» Correct Answer - Option 1 : does not change very much

Concept:

Negative feedback system:

The transfer function of the negative feedback closed-loop control system is given by

TF = G/ (1 + βG)

Where,

G = open-loop gain

β = feedback factor or gain

Explanation:

Given that,

The open-loop gain is decreased due to the frequency or the effects of the system aging.

But the βG is still large

Then,

The overall gain will be

TF = (G↓) / (1 + βG↓)

As βG is still very large we can neglect 1 (1 << βG)

TF or Overall gain ≈  G / βG ≈ 1\β

Hence, if we neglect 1 in the denominator then there is no change in the gain even though if there is a change in open-loop gain, but if we consider 1 also then there will be a slight change(decreases) in the overall gain not much.

36.

The acceleration of a particle moving in straight line is defined by the relation `a= -4x(-1+(1)/(4)x^(2))`, where a is acceleration in `m//s^(2)` and `x` is position in meter. If velocity `v = 17 m//s` when `x = 0`, then the velocity of the particle when `x = 4` meter is :A. `12 m//s`B. `15 m//s`C. `20 m//s`D. `25 m//s`

Answer» Correct Answer - B
The acceleration ……………
`a = -4x(-1+ 0.25 x^(2))`
`int_(17)^(v) vdv = int_(0)^(4)(4x-x^(3))dx`
`(1)/(2)(v^(2)-17^(2))= (4)/(2)(x^(2))_(0)^(4) - (1)/(4)(x^(4))_(0)^(4)`
`v^(2)-17^(2)=4(4^(2))-(1)/(2)(4^(4))= 64 - 128`
`V^(2)= 298-64 = 225 , V = 15 m//sec`
37.

Fill in with a suitable word from the given choices to complete the Proverb.1. Cross the …………. where it is shallowest. (a) river (b) stream (c) pond(d) sea2. Cut your coat according to your ………. (a) cloth (b) linen (c) court (d) need3. Don’t count you’re …………. before they hatch. (a) ducks (b) chickens(c) eggs (d) dumplings4. Don’t have too many irons in the …………. (a) fire (b) building (c) stock (d) backyard5. Don’t make a …………. out of a molehill. (a) mule (b) mountain (c) scene (d) fountain

Answer»

1. (b) stream

2. (a) cloth

3. (b) chickens

4. (a) fire

5. (b) mountain

38.

What is the name of the programme being implemented for the control of pests ?1. Integrated Pest Eradication Scheme2. Integrated Pest Destruction Yojana 3. Integrated Pest Prevention Programme4. Integrated Pest Management Programme

Answer» Correct Answer - Option 4 : Integrated Pest Management Programme

The correct answer is Integrated Pest Management Programme.

  • Integrated Pest Management (IPM) is an effective and environmentally sensitive approach to pest management that relies on a combination of common-sense practices.
  • IPM programs use current, comprehensive information on the life cycles of pests and their interaction with the environment. 
  • An example of this would be insect pheromones used together with sticky traps.
  • Pheromones are the chemicals produced by insects to attract their mates, and so these substances are not toxic


Steps involved in IPM are:

Step 1: Inspection. The cornerstone of an effective IPM program is a schedule of regular inspections. 
Step 2: Preventive Action. 
Step 3: Identification. 
Step 4: Analysis.
Step 5: Treatment Selection. 
Step 6: Monitoring.
Step 7: Documentation.

39.

Which color tag is used for seeds certified by accredited agencies in India ?1. Blue 2. Red 3. Green 4. Yellow

Answer» Correct Answer - Option 1 : Blue 

The correct answer is Blue.

  • Blue color tag is used for seeds certified by accredited agencies in India.
  • The seeds certification is voluntary.
  • The quality of the seeds is guaranteed by the certification agencies.
  • For the seeds to be certified they must satisfy both minimum field and seed standards.
  • The samples of the seeds can be taken by both the seed certification officer and seed inspectors for inspection.
40.

In India, the Intensive Cattle Development Project was launched by the Government of India in ________.1. 19522. 19543. 19644. 1969

Answer» Correct Answer - Option 3 : 1964

The correct answer is 1964.

  • In India, the intensive cattle Development Project (ICDP) was launched by the Government of India in 1964.
  • The project was started during the third five-year plan as a Special Development Program.
  • The following are the activities of the Intensive Cattle Development Project (ICDP):
    • Conducting Bench Mark Survey
    • Controlled Breeding
    • Veterinary Aid and Disease Control
    • Feeds and Foddeers
    • Diary extension.
  • Presently the ICDP's are merged in many states with the Animal Husbandry Programme and no separate funds are allocated to ICDP's.
41.

crop plants grown in monoculture areA. low in yieldB. free from intraspecific competitonC. characterised by poor root systemD. highly prone to pests

Answer» Correct Answer - D
The crop plants grown in monoculture are gihly prone to pests and thus it carries the rish of an entire crop being destroyed with the appearance of a single pest species o disease.
42.

Why can aquatic animals afford to be ammonotelic ?

Answer» Ammonia is highly toxic and requires large quantities of water for its removal, which is possible only in aquatic animals, hence only aquatic animals can afford to be ammonotelic.
43.

The Indira Gandhi Award for National Integration is accorded by the:1. Indian National Congress2. Ministry of Home Affairs, Government of India3. Ministry of Human Resource Development, Government of India4. Indira Gandhi National Open University

Answer» Correct Answer - Option 1 : Indian National Congress

The correct answer is Indian National Congress.

  • Indira Gandhi Award for National Integration was instituted in 1985 by the Indian National Congress in its Centenary year.
  • The Award is given on her Martyrdom Day on 31st October. The award carries a citation and cash amount of Rs. 10.00 lakh to be given either to a person or an institution for the outstanding contribution made to promote National Integration.

​​

  • The Indira Gandhi Prize for the popularization of science for 2020 has been awarded to Prof. R Ramanujam of IMSc.
  • The Indira Gandhi Prize for Peace, Disarmament, and Development for 2019 will be conferred on renowned naturalist and broadcaster Sir David Attenborough.
44.

Give the genotype of Turner’s syndrome.

Answer»

The genotype of Turner’s syndrome is 44 + XO where 44 is the autosome number.

45.

Which award is given for contribution towards national integration?1. Tilak Award2. Sardar Patel Award3. Gita Chopra Award4. Rajiv Gandhi Award

Answer» Correct Answer - Option 2 : Sardar Patel Award

The correct answer is Sardar Patel Award.

  • Sardar Patel Award seeks to recognize the notable and vital contribution to promote the national unity and integrity of India.
  • The award was announced on the occasion of the National Unity Day, i.e. the birth anniversary of Sardar Patel on 31st October.
  • The Award consists of a medal and a citation and no monetary grant or cash award are attached to this Award.

Eligibility of this award-

  •  Any citizen of India without distinction of religion, race, caste, gender, place of birth, age or occupation and any institution.
  • Only Individuals, organizations, and institutions are eligible.

  • National Unity Day was first observed on 31st October 2014.
  • In 2018, the Government unveiled the Statue of Unity in Gujarat on this day.
  • Sardar Patel is known as Bismarck of India because he played a vital role in the integration of India.
46.

Define organic evolution.

Answer»

Organic evolution is a slow, gradual, continuous and irreversible changes through which the present day complex forms have descended from their simple, pre-existing forms of the past.

47.

Why PUC is mandatory for all vehicles?

Answer»

PUC is mandatory for all vehicles in order to check air pollution.

48.

What is animal breeding? Explain the controlled methods of animal breeding and mention their significance.

Answer»

The production of new varieties of animals which are superior to their parents through selective breeding or mating is called animal breeding. 

There are two control breeding methods 

1. Artificial insemination 

2. Multiple ovulation embryo transfer technology (MOET) 

Artificial insemination 

Semen of superior male is collected and-injected unto the reproductive tract of selected female. 

Significance: 

1. It helps to overcome several problems of normal mating. 

2. Semen of a desirable bull can be inseminated into cows. 

3. Semen can be stored by cryopreservation to use at later stages and can be easily transported to distant places. 

4. Semen of single ejaculation can be used to inseminate large number of cows.

Multiple Ovulatuion Embryo transfer technology (MOET) Technique for herd improvement by successful production of hybrids 

1. Hormones (FSH) are administered to the cow for inducing follicular maturation and super ovulation. 

2. Cow produces 6-8 eggs instead of one egg and is either mated with, superior bull or artificially inseminated. 

3. Fertilized egg at 8-32 cell stage are recovered non-surgically & transferred to surrogate mother. 

Significance: 

1. It is practiced in cattle, sheep, rabbits, buffaloes, etc. 

2. Genetically superior animals can be produced. 

3. It solves the problems of infertility. 

4. A single female can donate many ovules. 

5. Preservation and transport of embryos is convenient.

49.

The _______ of train will be 15 minutes late. A) coming B) use C) departure D) time

Answer»

Correct option is C) departure

50.

We cannot _______ children under 14 to go to movies without their parents. A) let B) make C) have D) permit

Answer»

Correct option is D) permit