Question:

The COP of cycle is given by(Q2=heat absorbed by evaporator and Wc=work done by compressor)

A.

1- (q2/wc)

B.

1- (wc/q2)

C.

q2/wc

D.

wc/q2

Answer» c. q2/wc

Question:

Room air conditioners and packaged units are examples of                    

A.

direct expansion systems

B.

indirect expansion systems

C.

chilled water systems

D.

indirect contraction systems

Answer» a. direct expansion systems

Question:

What is the function of pressure gauge in the boiler?

A.

to indicate steam pressure

B.

to indicate water pressure

C.

to indicate air pressure

D.

to indicate flue gas pressure

Answer» a. to indicate steam pressure

Question:

With the increase in pressure, the exit velocity                    

A.

decreases

B.

increases

C.

same

D.

independent

Answer» a. decreases

Question:

Name the process used to eliminate impurities present in crude oil?

A.

distillation

B.

filtration

C.

sedimentation

D.

coagulation

Answer» a. distillation

Question:

Reaction turbine is also called as

A.

impulse turbine

B.

curtis wheel

C.

parsons turbine

D.

none of the mentioned

Answer» c. parsons turbine

Question:

High pressure turbine is a Non-Condensing turbine due to                      

A.

exhaust conditions

B.

axial flow of the steam

C.

pressure-velocity compounding

D.

velocity compounding

Answer» a. exhaust conditions