Question:

The evaporator produces the cooling or refrigerating effect.

A.

true

B.

false

Answer» a. true

Question:

The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop                          

A.

increases

B.

decreases

C.

is unpredictable

D.

remains same

Answer» b. decreases

Question:

Cross compound steam turbines are once used in                            

A.

generation of electricity

B.

marine ships

C.

automobiles

D.

none of the mentioned

Answer» b. marine ships

Question:

Which fuel is prepared by moulding finely ground coal under pressure?

A.

coke

B.

charcoal

C.

briquette coal

D.

lignite

Answer» c. briquette coal

Question:

 In fountains the type of nozzle used is

A.

none of the mentioned

B.

turbulent jet

C.

high speed nozzle

D.

laminar jet

Answer» d. laminar jet

Question:

In fluid dynamics, the velocity of the fluid in the stagnation point is

A.

zero

B.

infinite

C.

non-existent

D.

negative

Answer» a. zero

Question:

In De Laval Nozzle critical pressure ratio is given by (2/y+1)^(y/y-1).

A.

true

B.

false

Answer» a. true

Question:

Based upon the nature of heat exchange process, the heat exchangers are classified into how many categories

A.

1

B.

2

C.

3

D.

4

Answer» c. 3

Question:

Majority of the turbines are axial flow type.

A.

true

B.

false

Answer» a. true

Question:

other than Steam stop valve in the boiler which is the other similar type of valve used?

A.

non-reversible valve

B.

transient valve

C.

reversible valve

D.

junction valve

Answer» d. junction valve