GK in English

GK Chapterwise – CDS Previous Year Papers

Table of Contents

141. Growth in production (in percent) of which one of the following core industries in India during the period 2015-2016 was negative?

(a)Natural gas
(b) Refinery products
(c) Fertilizer
(d) Coal
Ans: (a)
CDS Exam (II) 2015

142. Which of the following statements about the India Post Payments Bank (IPPB) is/are correct?
1. It has been incorporated as a Public Limited Company.
2. It started its operation by establishing two pilot branches at Hyderabad and Varanasi.
Select the correct answer using the code given below.

(a)1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Ans: (a)

CDS (II) 2011

143. The Reserve Bank of India has recently constituted a highlevel task force on Public Credit Registry (PCR) to suggest a road map for developing a transparent, comprehensive and near-real-time PCR for India. The task force is headed by

(a)Sekar Karnam
(b) Vishakha Mulye
(c) Sriram Kalyanaraman
(d) Y. M. Deosthalee
Ans: (d)

CDS (I) 2013

144. According to the law of diminishing marginal utility, as the amount of a good consumed increases, the marginal utility of that good tends to

(b) diminish
(c) remain constant
(d) first diminish and then improve
Ans: (b)
CDS Exam (I) 2017

Chapter 5 Physics

1. Who gave the first evidence of the big-bang theory?
(a)Edwin Hubble
(b) Albert Einstein
(c) S Chandrasekhar
(d) Stephen Hawking
Ans: (a)

CDS (I) 2019

2. The density of water varies with temperature which helps the aquatic animals to live in cold water. At what temperature is the density of water maximum?

(b) 2°C
(c) 3°C
(d) 4°C
Ans: (d)
CDS Exam (I) 2012

3. Why is it difficult to see through fog?

(a)Rays of light suffer total internal reflection from the fog droplets
(b) Rays of light are scattered by the fog droplets
(c) Fog droplets absorb light
(d) The refractive index of fog is extremely high
Ans: (b)

CDS (I) 2007

4. Assertion (A): Steam is more harmful for human body than the boiling water in case of burn. Reason (R): Boiling water contains more heat than steam.

(a)Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Ans: (c)

CDS (II) 2009

5. Which one of the following Indian scientists was elected as a fellow of the Royal Society of London for his contribution in the field of Plant Physiology and Physics ?

(a)Ashutosh Mukherjee
(b) Jagdish Chandra Bose
(c) Prafulla Chandra Ray
(d) P C Mahalanodis
Ans: (b)
CDS Exam (II) 2018

6. Assertion (A): In a pressure cooker food is cooked above boiling point. Reason (R): Boiling point of water increases as the pressure increases.

(a)Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Ans: (a)
CDS Exam (I) 2016

7. On which one of the following conservative laws, does a rocket work?

(b) Energy
(c) Linear momentum
(d) Angular momentum
Ans: (c)

CDS (I) 2008

8. Bar is a unit of which one of the following?

(b) Energy
(c) Pressure
(d) Frequency
Ans: (c)

CDS (II) 2010

9. What would be the best choice for window material to keep the outside heat away?

(a)Single-pane glass
(b) Double-pane glass without a gap in between
(c) Double-pane glass with water filled in between
(d) Double-pane glass with air in between
Ans: (d)
CDS Exam (II) 2015

10. A ray of light is incident on a plane mirror at an angle 30° with the normal at the point of incidence. The ray will be deviated from its incidence direction by what angle?

(b) 60°
(c) 120°
(d) None of these
Ans: (b)

CDS (II) 2011

11. Consider the following satements X-rays
1. can pass through aluminum.
2. can be deflected by magnetic field.
3. move with a velocity less than the velocity of ultraviolet ray in vacuum.
Which of the statements given above is/are correct?

(a)1,2 and 3
(b) Only 1
(c) 2 and 3
(d) 1 and 2
Ans: (b)

CDS (I) 2013

12. If a small raindrop falls through air

(a)its velocity goes on increasing
(b) its velocity goes on decreasing
(c) its velocity goes on increasing for sometime and then becomes constant
(d) it falls with constant speed for sometime and then its velocity increases
Ans: (c)

CDS (II) 2017

13. Television signal cannot be received generally beyond a particular distance due to

(a)curvature of the Earth
(b) weakness of antenna
(c) weakness of signal
(d) absorption of signal in air
Ans: (a)
CDS Exam (II) 2015

14. Which one of the following common devices works on the basis of the principle of mutual induction?

(b) Transformer
(c) Photodiode
(d) LED
Ans: (b)

CDS (II) 2019

15. The phenomenon of mirage occurs due to which one of the following?

(a)Polarisation of light
(b) Dispersion of light
(c) Diffraction of light
(d) Total internal reflection of light
Ans: (d)

CDS (I) 2012

16. A perfect black body has the unique characteristic feature as

(a)a good absorber only
(b) a good radiator only
(c) a good absorber and a good radiator
(d) neither a radiator nor an absorber
Ans: (c)

CDS (II) 2007

17. Laser is a device to produce

(a)a beam of white light
(b) coherent light
(c) microwaves
(d) X-rays
Ans: (b)
CDS Exam (II) 2009

18. Earthquake (shock) waves are

(a)infrasonic waves
(b) ultrasonic waves
(c) seismic
(d) infrared waves
Ans: (c)

CDS (II) 2018

19. By which one of the following, an old written material which cannot be read easily, can be read

(b) X-rays
(c) IR-rays
(d) Radiofrequency waves
Ans: (c)

CDS (I) 2016

20. Which one of the following is the permissible level of noise in a silent zone at day time?

(a)50 dB
(b) 60 dB
(c) 65 dB
(d) 75 dB
Ans: (a)
CDS Exam (I) 2008

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