Practice Tough Thermodynamics Multiple Choice Questions with Answers Quiz-1

Q.1.

The thermal efficiency of the cycle is

a) Q2 / Wnet
b) Wnet / Q2
c) Wnet / Q1
d) Q1 / Wnet

Explanation

Q.2.

Which of the following losses occur in a cycle?

a) piping losses
b) pump losses
c) turbine losses
d) all of the mentioned

Explanation

Q.3.

The important piping losses include

a) pressure drop due to friction
b) heat loss to surroundings
c) both of the mentioned
d) none of the mentioned

Explanation

Q.4.

The heat transfer and the pressure drop reduces the availability of steam.

a) true
b) false

Explanation

Q.5.

The losses in boiler include

a) pressure drop from pump to boiler
b) pressure drop in boiler
c) both of the mentioned
d) none of the mentioned

Explanation

Q.6.

The main losses in turbine include

a) heat loss to surroundings
b) friction losses
c) both of the mentioned
d) none of the mentioned

Explanation

Q.7.

Heat loss from turbine is generally neglected.

a) true
b) false

Explanation

Q.8.

The losses in pump is due to

a) heat loss to surroundings
b) irreversibilities associated with fluid friction
c) both of the mentioned
d) none of the mentioned

Explanation

Q.9.

The losses in condenser are ____

a) small
b) large
c) always constant
d) none of the mentioned

Explanation

Q.10.

The condenser losses include

a) loss of pressure
b) cooling of condensate below saturation temperature
c) both of the mentioned
d) none of the mentioned

Explanation

Q.11.

The efficiency of Carnot cycle is ____ the efficiency of Rankine cycle.

a) less than
b) greater than
c) equal to
d) none of the mentioned

Explanation

Q.12.

The only process which is different in Carnot and Rankine cycle is

a) compression in pump
b) expansion in turbine
c) heat rejection process
d) heat addition process

Explanation

Q.13.

The Carnot cycle cannot be realized in practice.

a) true
b) false

Explanation

Support mcqgeeks.com by disabling your adblocker.