General Science Page-4

31) For being able to see three dimensional pictures we have to use
(A) A binocular
(B) A camera
(C) An epidiascope
(D) A stereoscope

32) Water has maximum density at
(A) 0°C
(B) 1°C
(C) 4°C
(D) 10°C

33) The theory of expanding universe was first propounded by
(A) Einstein
(B) Newton
(C) Galileo
(D) Hubble

34) An instrument used to detect purity of milk is
(A) Lactometer
(B) Hygrometer
(C) Manometer
(D) Sonometer

35) Consider the following statements: if there was no Capillarity
(1) It would be impossible to use a kerosene lamp
(2) One would not be able to use a straw to consume a soft drink
(3) The blotting paper would fail to function
(4) There would have been no plants on earth
Of the statements
(A) 1,2 and 3 are correct
(B) 2 and 4 are correct
(C) All are correct
(D) 1,3 and 4 are correct

36) Water vapour beyond the dew point result in
(A) Precipitation
(B) Hailstorm
(C) Condensation
(D) Formation of Ice

37) The main chemical substance present in teeth and bone of animal is
(A) Sodium Chloride
(B) Sugar
(C) Calcium Phosphate
(D) Calcium Sulphate

38) The major component of Honey is
(A) Glucose
(B) Sucrose
(C) Maltose
(D) Fructose

39) The working principle of washing machine is
(A) Centrifugation
(B) Dialysis
(C) Reverse Osmosis
(D) Diffusion

40) Radioactivity was first discovered by
(A) Pasteur
(B) Newton
(C) Watson
(D) Henri Becquerel

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