NDA 2011 (2) - Solved Paper

Solved Question Paper - General Knowledge of NDA Exam held on 21 Aug 2011

31. The major component used in preparation of different types of glasses is

  1. Silica
  2. Sodium borate
  3. Calcium silicate
  4. Sodium silicate

32. All the elements in a group (family) have a common valency. For example, all the elements of the carbon family (carbon, silicon, germanium, tin and lead ) have common valency four. However, some of these elements can also have valency two. Which of the following can have valency two?

  1. Silicon, germanium and tin
  2. Only germanium and tin
  3. Germanium, tin and lead
  4. Only tin and lead

33. Match List 1 with List 2 and select the correct answer using the code given below the lists :

List I
(Metallic oxide)		List II
(Colour imported to glass )
A. Uranium oxide 1. Red
B. Cuprous oxide 2. Blue
C. Cobalt oxide 3. Green
D. Chromium oxide 4. Yellow

Code:

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

34. The image formed by a convex mirror of a real object is larger than the object

  1. when u < 2f
  2. when u > 2f
  3. for all values of u
  4. for no value of u

35. Protons and neutrons are bound in a nucleus by the

  1. short range 'weak interaction'
  2. short range 'strong interaction'
  3. long range 'electromagnetic interaction'
  4. long range 'gravitational interaction'

36. Refractive index of an optical medium changes with

  1. the nature of the medium.
  2. the change in the angle of incidence of the ray.
  3. colour of the incident ray.

Select the correct answer using the code given below :

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

37. A one-rupee coin is placed at the bottom of a vessel. Water is then poured into the vessel such that the depth of water becomes 20 cm. If water has refractive index 4/3, the coin would be seen at a depth of

  1. 20 cm
  2. about 26 cm
  3. 15 cm
  4. 25 cm

38. Momentum of a body is

  1. a vector quantity.
  2. a conserved quantity in an isolated system.
  3. same as force in linear motion.

Select the correct answer using the code given below :

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

39. Which one among the following is a correct sequence of the Indian ports from north to south?

  1. Haldia – Kandla - Paradeep - Kochi
  2. Kandla - Haldia - Paradeep - Kochi
  3. Kandla - Haldia - Kochi - Paradeep
  4. Kochi - Kandla - Haldia - Paradeep

40. Which one among the following is a correct sequence of production of coal in the Indian States in descending order?

  1. Jharkhand – Madhya Pradesh - West Bengal - Meghalaya
  2. West Bengal - Madhya Pradesh - Jharkhand - Meghalaya
  3. Jharkhand - West Bengal - Meghalaya - Madhya Pradesh
  4. Madhya Pradesh - Jharkhand - West Bengal - Meghalaya

41. Match List 1 with List 2 and select the correct answer using the code given below the lists :

List I
(Mineral)		List II
(State)
A. Bauxite 1. Andhra Pradesh
B. Mica 2. Orissa
C. Copper 3. Madhya Pradesh
D. Zinc 4. Rajasthan

Code:

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

42. The western coasts of India receive very high rainfall in summer mainly due to

  1. Tropical location
  2. Nearness to sea
  3. Western Ghats
  4. Himalayas

43. The current produced by upwelling of cold water off the coast of Chile and Peru is known as

  1. El Nino
  2. Humboldt current
  3. Agulhas current
  4. Canary current

44. If the ratio of the weight of a man in a stationary lift and when it is moving downwards with uniform acceleration ‘a’ is 3 : 2, then the value of ‘a’ is

  1. 3g/2
  2. g /3
  3. g
  4. 2g/3

45. A body is thrown upward against the gravity ‘g’ with initial velocity ‘u’. Which one among the following is the correct expression for its final velocity when the body attains the maximum height?

  1. u2/(2g)
  2. 2g/u2
  3. u2g/2
  4. None of the above

46. Which one among the following is the correct value of the gravitational force of the Earth acting on a body of mass 1 kg?

  1. 8.9 N
  2. 9.8 N
  3. 89 N
  4. 98 N