# 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.

Explanation:

No answer description available for this question. Let us discuss.

22.

Candela (Cd) is used to express

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

Explanation:

No answer description available for this question. Let us discuss.

23.

The unit kg/m3 is used for

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

Explanation:

No answer description available for this question. Let us discuss.

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.

Explanation:

No answer description available for this question. Let us discuss.

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