Steam Power Cycle MCQs : This section focuses on the "Steam Power Cycle". These Multiple Choice Questions (MCQs) should be practiced to improve the Steam Power Cycle skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
A power cycle continuously converts ____ into ____
A. heat, heat
B. work, heat
C. heat, work
D. work, work
Question 2
For a Rankine cycle, which of the following is true?
A. a reversible constant pressure heating process happens in steam boiler
B. reversible adiabatic expansion of steam in turbine
C. reversible constant pressure heat rejection in condenser
D. all of the mentioned
Question 3
For a vapour power cycle,
A. net heat input is converted into net work output
B. Q1-Q2 = Wt-Wp
C. efficiency = 1 - (Q2/Q1)
D. all of the mentioned
Question 4
Heat rate is given by (in kJ/kWh)
A. cycle efficiency
B. 3600 / cycle efficiency
C. cycle efficiency / 3600
D. cycle efficiency * 3600
Question 5
In a Rankine cycle, all the processes are ideal.
A. TRUE
B. FALSE
Question 6
In the vapour power cycle, working fluid undergoes a change of phase.
A. TRUE
B. FALSE
Question 7
Steam rate is the rate of steam flow required to produce unit shaft output.
A. TRUE
B. FALSE
Question 8
The liquid water handled by pump is
A. incompressible
B. with increase in pressure, there is a little change in density or specific volume
C. both of the mentioned
D. none of the mentioned
Question 9
The path followed in a vapour power cycle is
A. boiler-condenser-turbine-pump
B. boiler-turbine-condenser-pump
C. boiler-turbine-pump-condenser
D. boiler-pump-turbine-condenser
Question 10
The work ratio is defined as the ratio of
A. positive work output to net work output
B. net work output to positive work output
C. heat input to work output
D. none of the mentioned
Question 11
Which of the following statement is true?
A. during compression, specific volume of the fluid should be kept small
B. during expansion, specific volume of the fluid should be kept large
C. both of the mentioned
D. none of the mentioned
Question 12
Work output of turbine is ____ the work input to the pump.
A. much larger
B. much smaller
C. equal to
D. none of the mentioned