# Simple Steam Power Cycle - MCQs with Answers

## Simple Steam Power Cycle - MCQs with Answers

Q1. What will be the net change in internal energy of working fluid of power cycle over the complete cycle?

a. net change in internal energy of working fluid will be positive
b. net change in internal energy of working fluid will be negative
c. no any net change in internal energy of working fluid
d. none of the above

ANSWER: c. no any net change in internal energy of working fluid

Q2. What is the relation between net energy transferred to unit mass of the working fluid as heat in the power cycle and net energy transfer as work from the working fluid in the same power cycle, if the cycle works ideally?

a. net energy transferred to unit mass of the working fluid as heat in the power cycle is greater than net energy transfer as work from the working fluid in the same power cycle

b. net energy transferred to unit mass of the working fluid as heat in the power cycle is less than net energy transfer as work from the working fluid in the same power cycle

c. net energy transferred to unit mass of the working fluid as heat in the power cycle is equal to net energy transfer as work from the working fluid in the same power cycle

d. cannot say

ANSWER: c. net energy transferred to unit mass of the working fluid as heat in the power cycle is equal to net energy transfer as work from the working fluid in the same power cycle

Q3. What is the formula for efficiency of vapour power cycle?

a. ηcycle = Wnet / Qin
b. ηcycle = (WT – WP) / Qin
c. ηcycle = (Qin – Qout) / Qin
d. all of the above