Explore topic-wise MCQs in Power Plant.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.

1.

When the pressure at which heat is added in Rankine cycle increases, the moisture content at the turbine exhaust?

A. increases
B. decreases
C. remains same
D. cannot say
Answer» B. decreases
Discussion
2.

The maximum efficiency of Rankine cycle ( r) is the function of ___________

A. the mean temperature of heat addition (T<sub>m</sub>) only
B. the mean temperature of heat addition (T<sub>m</sub>) and temperature of steam at the exit of the turbine
C. the mean temperature of heat addition (T<sub>m</sub>) and temperature of steam at the entry of the turbine
D. the mean temperature of heat addition (T<sub>m</sub>) and temperature of steam at exit of the condenser
Answer» B. the mean temperature of heat addition (T<sub>m</sub>) and temperature of steam at the exit of the turbine
Discussion
3.

If Tm be the mean temperature of heat addition in Rankine cycle as shown in diagram,
what will the formula for efficiency of Rankine cycle?

A. n<a href="https://www.sanfoundry.com/wp-content/uploads/2017/06/power-plant-questions-answers-freshers-q3.png"><img alt="The formula for efficiency of Rankine cycle is ( r) = 1 (T3 / Tm)" class="alignnone size-full wp-image-168084" height="283" src="https://www.sanfoundry.com/wp-content/uploads/2017/06/power-plant-questions-answers-freshers-q3.png" width="300"/></a>
B. ( <sub>r</sub>) = (T<sub>3</sub> / T<sub>m</sub>)
C. ( <sub>r</sub>) = 1 (T<sub>3</sub> / T<sub>m</sub>)
D. ( <sub>r</sub>) = 1 (T<sub>2</sub> / T<sub>m</sub>)
E. ( <sub>r</sub>) = (T<sub>2</sub> / T<sub>m</sub>)
Answer» C. ( <sub>r</sub>) = 1 (T<sub>3</sub> / T<sub>m</sub>)
Discussion