41 With the Earth-man’s pcesent level of
exploration of space:
(A) We know stow big the universe is:
(B) We can plan a round of the universe
(C) We are placed in the middle of universe
(D) It is not possible to know the size of
universe
42. What is the ‘Milky Way’?
(A) The road by which milk is conveyed
(B) The luxurious way the rich live
(C) The galaxy to which the Solar system
belongs
(D) The star that emits milky light
43. In its simplest form, the law of Gravitation
states that two objects attract each other. Who
pro-pounded this law?
(A) Mendel
(B) Jean Picard
(C) J. Priestley
(D) Newton
44. Humidity is:
(A) discomfort due to heat
(B) excess of heat in atmosphere
(C) presence of water vapour in the air
(D) absence of water vapour in the air
45. Dry air is:
(A) good conductor of electricity
(B) bad conductor of electricity
(C) perfect insulator
(D) perfect conductor
46 The pituitary gland in our body is associated
with the
(A) growth of our sexual system
(B) growth of our bones
(C) growth of our digestive system
(D) growth of our nervous system
47. Nitrogen gas was discovered by
(A) J Priestley
(B) Dr. Philip Drinker
(C) RC Funk
(D) Daniel Rutherford
48. What are fossils?
(A) The ancient practice of revenue collection
in kind
(B) The liquid fuel like petroleum etc
(C) The rock structure preserved from
deterioration
(D) The remains of plants and animals buried
ages ago
49. Hemoglobin is a constituent of blood and is complex protein. It gives colour to blood. Now blood cells do not get the normal amount of hemoglobin when our food is deficient.
(A) iron
(B) calcium
(C) fats
(D) vitamins
50. Soap is made by:
(A) mixing fats and acids
(B) boiling fats and oils with an alkali
(C) mixing soap base with chalk and fats
(D) None
51. The science of the production of fine human
off-springs is:
(A) biology
(B) eugenics
(C) genecology
(D) genetics
52. The escape velocity of a projectile from t’h e
earth is approximately:
(A) 7 krn/s
(B) 112 km/s
(C) 1.1 km/s
(D) 11.2 km/s
53. When a beam of light passes front air into
water, its speed:
(A) increases
(B) decreases
(C) remains the same
(D) None of these
54. Select the correct answer.
A closed bottle containing water at 30°C is
carried to the moon in a spaceship. If it is
placed on the surface of the moon, what will
happen to the water as soon as the lid is
opened?
(A) water will boil
(B) water will freeze
(C) nothing will happen to it
(D) it will decompose into H2 and 0
55. A man standing at a distance of 1 metre from
a mirror wishes to take the photograph of his
image in the mirror. At what distance should
he place his camera from the mirror?
(A) 2 a metre
(B) 1 metre
(C) 2 metre
(D) 4 metre
56. A man-made element is:
(A) plutonium
(B) U-235
(C) thorium
(D) radium
57. Worn-out red corpuscles are decomposed in
the:
(A) heart
(B) lungs
(C) kidneys
(D) liver
58. Sound waves in air are:
(A) transverse waves
(B) longitudinal waves
(C) may be both types
(D) None
59. What is Botany?
(A) science concerning animal bodies
(B) study of coins
(C) study of plant life
(D) study of bacteria
60. Cataract, an eye disease, appears to have
occurred if
(A) eyes water too much
(B) long or short sighi is radically affected
(C) the eyes remain swollen and aching
(D) general vision has become excessively
cloudy