Chemical Engineering - Chemical Engineering Basics

36. 

Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.

A. turning
B. dressing
C. forming
D. surface finishing

Answer: Option D

Explanation:

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

37. 

Which of the following is the most effective inhibitor of grain growth, when added in small quantity in steel ?

A. Manganese
B. Vanadium
C. Cobalt
D. Copper

Answer: Option B

Explanation:

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

38. 

A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

A. proportional
B. integral
C. derivative
D. none of these

Answer: Option B

Explanation:

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

39. 

An ideal fluid is

A. viscous & incompressible.
B. non-viscous & compressible.
C. non-viscous & incompressible.
D. viscous & compressible.

Answer: Option C

Explanation:

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

40. 

When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the

A. partial pressure of water vapour is less than the total pressure.
B. humidity is < 100% & dew point temperature of air has not reached.
C. dew point temperature of air has not reached & air is not saturated fully.
D. air is fully saturated.

Answer: Option D

Explanation:

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