Chemical Engineering - Chemical Engineering Basics

16. 

At room temperature, F.C.C. crystal structure is observed in

A. lead
B. cupro-nickel
C. titanium
D. tungsten

Answer: Option A

Explanation:

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

17. 

The basic function of the drum in a boiler is to

A. act as a storage for feed water.
B. act as a storage for steam.
C. separate steam from water.
D. remove settling impurities from steam.

Answer: Option C

Explanation:

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

18. 

Pick out the wrong statement.

A. The X-rays can not be deflected by electric field unlike cathode rays.
B. The intensity of X-rays can be measured by ionisation current produced due to the ionisation of gas by X-rays.
C. The quality of X-rays can be controlled by varying the anode-cathode voltage.
D. Crystal structure of a material can be studied by an electron microscope.

Answer: Option C

Explanation:

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

19. 

Colloids can be purified by

A. dialysis
B. reverse osmosis
C. coagulation
D. peptization

Answer: Option A

Explanation:

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

20. 

The most prominent single cause of corrosion in boilertubes, drums, economisers and steam superheaters in a thermal power plant boiler is the

A. water alkalinity & leakage.
B. hydrazine addition during feed water treatment.
C. release of non-condensable gas from water in the boiler.
D. scale formation.

Answer: Option C

Explanation:

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