UNITS & MEASUREMENTS
MCQ SET 1 :-

1. What is the unit for measuring the amplitude of a sound?
(A) Decibel✅
(B) Coulomb
(C) Hum
(D) Cycles

2. One nanometer is equal to
(A) 10-6 m
(B) 10-8 m
(C) 10-9 m✅
(D) 10-5 m

3. One fathom is equal to
(A) 6 feet✅
(B) 6 meters
(C) 60 feet
(D) 100 cm

4. Light year is a measurement of
(A) Speed of aeroplanes
(B) Speed of light
(C) Stellar distances✅
(D) Speed of rockets

5. One kilometer is equal to how many miles?
(A) 0.84
(B) 0.5
(C) 1.6
(D) 0.62✅

6. 'Bar' is the unit of
(A) Temperature
(B) Heat
(C) Atmospheric pressure✅
(D) Current

7. Nautical mile is a unit of distance used in

(A) Navigation✅
(B) Road mile
(C) Astronomy
(D) Measuring the boundaries of a nation

8. How many Dynes are there in 1 gram weight?
(A) 900
(B) 375
(C) 981✅
(D) 250

9. Joule is the unit of
(A) Temperature
(B) Pressure
(C) Energy✅
(D) Heat

10. How many Ergs are there in 1 joule?
(A) 102
(B) 104
(C) 106
(D) 107✅