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General Science MCQ on Biology, Chemistry and Physics with Answer
Q: Which of the following is an example of thermoplastics?
A: Bakelite
B: Melamine
C: PVC
D: none of these
Answer
Correct Option: C  [ PVC ]
Remark:
Q: The layer of the atmosphere in which Radio Waves are reflected back is called:
A: Exosphere
B: Ionosphere
C: Troposphere
D: Stratosphere
Answer
Correct Option: B  [ Ionosphere ]
Remark:
Q: What is the frequency range of audible waves?
A: 20 to 20000 Hz
B: 21000–24000 Hz
C: 25000–30000 Hz
D: 31000–40000 Hz
Answer
Correct Option: A  [ 20 to 20000 Hz ]
Remark:
Q: The number of milk teeth in man is
A: 28
B: 29
C: 20
D: 12
Answer
Correct Option: C  [ 20 ]
Remark:
Q: Growth hormone is produced by :
A: Bones
B: Pituitary gland
C: Thyroid gland
D: Adrenal gland
Answer
Correct Option: B  [ Pituitary gland ]
Remark:
Q: Noise levels in residential areas should not exceed:
A: 30 decibels
B: 100 decibels
C: 85 decibels
D: 55 decibels
Answer
Correct Option: D  [ 55 decibels ]
Remark:
Q: The age Of trees is determined by its
A: height
B: girth
C: general appearance
D: growth rings
Answer
Correct Option: D  [ growth rings ]
Remark:
Q: The sun is seen before the actual sunrise because of:
A: re?ection
B: refraction
C: scattering of light
D: rectilinear propagation of light
Answer
Correct Option: B  [ refraction ]
Remark:
Q: Which of the following is not a property of heavy water ?
A: Boiling point of heavy water is lower than that of ordinary water
B: density of heavy water is higher than that of ordinary water
C: freezing point of heavy water is higher than that ordinary water
D: it produces corrosion
Answer
Correct Option: A  [ Boiling point of heavy water is lower than that of ordinary water ]
Remark:
Q: Shadows are formed when a __________ object comes in the path of light.
A: Opaque
B: Transparent
C: Luminous
D: Translucent
Answer
Correct Option: A  [ Opaque ]
Remark:
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