NDA 2013 (1) - Solved Paper

Solved Question Paper - General Knowledge of NDA Exam held on 14.04.2013

1. The pH of fresh milk is 6. When it turns sour, the pH

  1. becomes < 6
  2. remains the same i.e. 6
  3. becomes > 6
  4. becomes neutral, i.e., 7

2. The displacement of a particle is given by x = cos2ωt. The motion is

  1. simple harmonic
  2. periodic but not simple harmonic
  3. non-periodic
  4. none of the above

3. A motor vehicle is moving on a circle with uniform speed. The net acceleration of the vehicle is

  1. zero
  2. towards the centre of circle
  3. away from the centre along the radius of the circle
  4. perpendicular to the radius and along the velocity

4. An object moving is undergoing a non accelerated motion. Its rate of change in momentum is

  1. a non-zero constant
  2. zero
  3. not a constant
  4. None of the above

5. The motion of an electron in presence of a magnetic field is depicted in the figure.

q5

Force acting on the electron will be directed

  1. into the page
  2. out of the page
  3. opposite to the motion of the electron
  4. along the motion of the electron

6. Imagine a current carrying wire with the direction of current downward or into the page. The direction of magnetic field lines is

  1. clockwise
  2. anti-clockwise
  3. into the page
  4. out of the page

7. The main thinking part of the brain is

  1. midbrain
  2. hypothalamus
  3. forebrain
  4. hindbrain

8. Which one among the following hormones stimulates the plant cells to grow in a manner such that the plant appears to be bent towards light?

  1. Cytokinin
  2. Auxin
  3. Gibberellin
  4. Abscisic acid

9. Magnetic Resonance Imaging (MRI) is used in medical diagnosis to obtain image our internal body organs. This is primarily possible because

  1. our body possesses a permanent magnet
  2. MRI uses an external magnet to generate a magnetic field in our body
  3. MRI uses an external electric field to generate magnetic field in our body
  4. Ion's motion along our nerve cells generates magnetic fields
q10

10. The motion of a particle is given by a straight line in the graph given above drawn with displacement (x) and time (t). Which one among the following statements is correct?

  1. The velocity of the particle is uniform
  2. The velocity of the particle is non-uniform
  3. The speed is uniform and the particle is moving on a circular path
  4. The speed is non-uniform and the particle is moving on a straight line path

11. The human eye is like a camera and hence it contains a system of lens. The eye lens forms

  1. a straight or upright, real image of the object on the retina
  2. an inverted, virtual image of the object on the retina
  3. an inverted, real image of the object on the retina
  4. a straight or upright, real image of the object on the iris

12. Match List I with List II and select the correct answer using the code given below the lists :

List I
(Rock Type)		List II
(Composition)
A. Sandstone1. Rock formed from peat or other organic deposits
B. Limestone2. Clay, breaking easily into flat flake plates
C. Coal3. Calcium carbonate formed by precipitation
D. Shale4. Cemented sand Grains

Code:

  1. A - 4; B - 1; C - 3; D - 2
  2. A - 2; B - 3; C - 1; D - 4
  3. A - 2; B - 1; C - 3; D - 4
  4. A - 4; B - 3; C - 1; D - 2

13. The Golden Quadrilateral which connects Delhi, Mumbai, Chennai and Kolkata passes through

  1. Amritsar – Ahmedabad – Pune – Patna
  2. Jaipur – Porbandar – Hyderabad – Varanasi
  3. Vadodara – Pune – Visakhapatnam – Varanasi
  4. Nagpur – Bhopal – Surat – Amritsar

14. Delhi Mumbai Industrial Corridor connects the political and business capital of India. Arrange the States from highest to lowest in terms of the length of the corridor passing through them

  1. Maharashtra – Gujarat – Rajasthan – NCR of Delhi
  2. NCR of Delhi – Uttar Pradesh – Rajasthan – Maharashtra
  3. Rajasthan – Gujarat – Maharashtra – NCR of Delhi
  4. Maharashtra – Rajasthan – Uttar Pradesh – NCR of Delhi

15. Which of the following statements is/are true?

  1. The angle of the axis in relation to the plane in which the earth revolves around the sun is not constant.
  2. The amount of energy given off by the sun changes with the transparency of the atmosphere.

Select the correct answer using the code given below

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

16. A car is moving with a uniform speed. However its momentum is changing. Then the car

  1. may be on an elliptical path
  2. is moving on a straight path without acceleration
  3. is moving on a straight path with acceleration
  4. is moving without any acceleration

17. Ohm’s law defines

  1. a resistance
  2. current only
  3. voltage only
  4. both current and voltage

18. Which of the following statements about sexual reproduction in flowering plants are correct?

  1. Stamen is present in the centre of a flower.
  2. Stamen produces pollen grains in the ovary.
  3. The swollen bottom part of carpel is the ovary.
  4. The fusion of germ cells gives rise to zygote.

Select the correct answer using the code given below

  1. 2, 3 and 4 only
  2. 2 and 4 only
  3. 1 and 3 only
  4. 1, 2, 3 and 4