answer key 23/5/2018

41. India Gate was earlier known as
(a)Gateway of India (b)All India War Memorial
(c)Delhi Gate (d)National Memorial

42. The word ‘tsunami’ in Japanese language means
(a)Killer waves (b)Harbour waves
(c)Sea Mountains (d)Giant waves

43. Vitamin B2 is also known as
(a)Retinol (b)Ascorbic acid (c)Riboflavin (d)Thiamin

44. Which of the following liquids has the highest viscosity?
(a)Water (b)Kerosene (c)Petrol (d)Honey

45. Light year is:
(a)The time taken by Sun’s rays to reach the Earth
(b)The time taken by light rays from the Moon to reach the Earth
(c)The year in which February has only 28 days
(d)The distance travelled by light in one year

46. Deuterium is an …………. of Hydrogen
(a)Isobar (b)Isotope (c)Isomer (d)Isotone

47. The capital of Nigeria is:
(a)Lagos (b)Kanoj (c)Abuja (d)Maputo

48. The currency of which of the following countries is not Euro?
(a)Italy (b)Monaco (c)Finland (d)Hungary

49. Mesopotamia is now known as
(a)Iraq (b)Iran (c)Jordan (d)Egypt

50. Which of the followng is not a musicial instrument?
(a)Clarinet (b)Cymbals (c)Harp (d)Masque

51. What is the comon ratio of the progression
32, 6, 62?
(a)3 (b)2 (c) 2 (d) 3

52. If the n th term of an Arithmetic progression is 4n -1, what is the sum of the first n
terms
(a)
n(2n 1)
2

(b)
n(2n 1)
2

(c)n (2n – 1) (d)n (2n +1)

53. If
1
3
, x, 3 are three consecutive terms of a geometric progression what is the
value of x?
(a)1 (b)
1
3
(c)3 (d) 3

55. The circumcentre of an obtuse triangle will always be in the
(a)interior of the triangle (b)midpoint of the diameter
(c)exterior of the triangle (d)Midpoint of the side of the triangle

56. What is the degree measure of a semicircle?
(a)360 (b)90 (c)270 (d)180

57. Which among the following is the point of intersection fo the medians of a triangle?
(a)Circumcentre (b)Centroid (c)Orthocentre (d)Incentre

58. The height of a cone and its base diameter are equal. If the base radius is ‘r’. What
is its slant height
(a)3 r (b)4 r (c) 5r (d) 3 r

59. Which of the following is equivalent to
1
2 sin A
-1?
(a)cosec 2 A (b)sec 2 A (c)tan 2 A (d)cot 2 A

60. The radii of two spheres are in the ratio 2: 3. What is the ratio of their surface areas?
(a)4 : 9 (b)2 : 3 (c)8 : 27 (d)4 : 6

Answers

41. (b) 42. (b)
43. (c) 44. (d) 45. (d) 46. (b) 47. (c) 48. (d)
49. (a) 50. (d) 51. (b) 52. (d) 53. (a) 54. (b)
55. (c) 56. (d) 57. (b) 58. (c) 59. (d) 60. (a)