Civil Engineering - SI Units

Exercise :: SI Units - Section 1

  • SI Units - Section 1
21. 

Hertz (Hz) is used to express

A. Luminous intensity
B. electric current intensity
C. power
D. frequency.

Answer: Option D

Explanation:

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22. 

Candela (Cd) is used to express

A. luminous intensity
B. electric current intensity
C. power
D. frequency.

Answer: Option A

Explanation:

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23. 

The unit kg/m3 is used for

A. force
B. density
C. volume
D. pressure.

Answer: Option B

Explanation:

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24. 

The fundamental units in S.I. System are :

A. Centimetre, gram, second
B. Foot, pound, second
C. Metre, kilogram, second
D. Kilometre, kilogram, minute
E. None of these.

Answer: Option C

Explanation:

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25. 

The bar used for defining the standard metre at the International office of weights and measures at Sevres near Paris, is composed of

A. 50% platinum and 50% iridium
B. 60% platinum and 40% iridium
C. 70% platinum and 30% iridium
D. 80% platinum and 20% iridium
E. 90% platinum and 10% iridium

Answer: Option E

Explanation:

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