Question:

Ratio of critical pressure to inlet pressure in known as                        

A.

none of the mentioned

B.

pressure ratio

C.

critical pressure ratio

D.

isoentropic pressure ratio

Answer» c. critical pressure ratio

Question:

Rotary pumps are driven by                    

A.

electric motors

B.

batteries

C.

diesel engines

D.

biogas fuel

Answer» a. electric motors

Question:

In how many categories heat exchangers are classified on the basis of physical state of heat exchanging fluids?

A.

1

B.

2

C.

3

D.

4

Answer» b. 2

Question:

How is friction due to air reduced?

A.

streamlining

B.

lubrication

C.

by using ball bearings

D.

by polishing

Answer» a. streamlining

Question:

Aeroderivative engines release higher emissions.

A.

true

B.

false

Answer» a. true

Question:

Wet compression is preferred over dry compression.

A.

true

B.

false

Answer» b. false

Question:

Which among the following is the formula for volumetric flow rate?

A.

q = v/a

B.

q = av

C.

q = a+v

D.

q = a-v

Answer» b. q = av

Question:

Which of these is not an application of back pressure turbine?

A.

desalination of sea water

B.

filtration of water

C.

process industries

D.

petrochemical installations

Answer» b. filtration of water

Question:

Steam turbine is classified on basis of

A.

type of blades

B.

exhausting condition

C.

type of steam flow

D.

all of the mentioned

Answer» d. all of the mentioned

Question:

Aeroderivative engines are larger.

A.

true

B.

false

Answer» b. false