31. What is the unit of luminous intensity?
(a) Candela (b) Ampere
(c) Kelvin (d) Litre
Answer: ( a)
32. I Nanometer (1nm) =
(a) 10⁻¹²m (b) 10⁻⁸m
(c) 10⁻⁹ m (d) 10⁻¹⁰m
Answer: ( c)
33. At which angle a projectile has maximum range?
(a) 45º (b) 90 º
(c) 30 º (d) 180 º
Answer: (a )
34. Escape velocity of the moon is
(a) 1.4 km/s (b) 2.4
km/s
(c) 3.4 km/s (d) 4.4. km/s
Answer: (b )
35. Escape velocity of the earth is
(a) 14.3 km/s (b) 11.2 km /s
(c) 14.2 km/s (d) 10.2 km/s
Answer: (b )
36. What is the temperature at which density of water is maximum?
(a) 4 º C (b) 5 º C
(c) 2 º C (d) 7 º C
Answer: ( a)
37. Select the vector quantity from the following.
(a) Temperature (b) Time
(c) Distance (d) Displacement
Answer: (d )
38. One Calorie is about ____ Joules.
(a) 4.9 J (b) 4.2 J
(c) 4.7 J (d) 5 J
Answer: ( b)
39. What is the mode of heat transfer in transferring heat from
sun to earth?
(a) Coduction (b) Convection
(c) Radiation (d) None of these
Answer: (c )
40. What is the normal human body temperature?
(a) 97 º F (b) 98.4 º F
(c) 98.4 º C (d) 97 º C
Answer: ( b)
41. 1 Horse Power = ______ Watt.
(a) 846 Watt (b) 646 Watt
(c) 946 watt (d) 746 Watt
Answer: (d )
42. The device which converts mechanical energy to electrical
energy is
(a) Electric motor (b) Loud Speaker
(c) Microphone (d) Dynamo
Answer: ( d)
43. Velocity of sound in air is _______ m/s.
(a) 200 (b) 100
(c) 430 (d) 340
Answer: (d )
44. Acoustics is the study of
(a) Sound (b) Light
(c) Temperature (d) Speed
Answer: (a )
45. National Science Day is observed on
(a) February 21 (b) February 28
(c) November 21 (d) November 28
Answer: ( b)
PSC GENERAL SCIENCE QUESTIONS AND ANSWERS
1. General Science - Physics
2. General Science Chemistry
3. General Science Biology
4. General Science Zoology
5. General Science Questions and Answers
Related Post
1. PSC CURRENT AFFAIRS-2015 (2000 FACTS)---> Click here
2. PSC PREVIOUS / SOLVED QUESTION PAPERS ---> Click here
3. PSC GENERAL KNOWLEDGE QUESTIONS AND ANSWERS ---> Click here
1. General Science - Physics
2. General Science Chemistry
3. General Science Biology
4. General Science Zoology
5. General Science Questions and Answers
Related Post
1. PSC CURRENT AFFAIRS-2015 (2000 FACTS)---> Click here
2. PSC PREVIOUS / SOLVED QUESTION PAPERS ---> Click here
3. PSC GENERAL KNOWLEDGE QUESTIONS AND ANSWERS ---> Click here
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