GATE ME 2016 Set 1 | Rankine Cycle Question 2 | Thermodynamics

GATE ME 2016 Set 1

MCQ (Single Correct Answer)

-0.3

The INCORRECT statement about regeneration in vapor power cycle is that

It increases the irreversibility by adding the liquid with higher energy content to the steam generator

Heat is exchanged between the expanding fluid in the turbine and the compressed fluid before heat addition

The principle is similar to the principle of Stirling gas cycle

It is practically implemented by providing feed water heaters

GATE ME 2015 Set 2

MCQ (Single Correct Answer)

-0.3

Which of the following statements regarding a Rankine cycle with reheating are TRUE?
(i) increase in average temperature of heat addition
(ii) reduction in thermal efficiency
(iii) drier steam at the turbine exit

only (i) and (ii) are correct

only (ii) and (iii) are correct

only (i) and (iii) are correct

(i), (ii) and (iii) are correct

GATE ME 2014 Set 1

MCQ (Single Correct Answer)

-0.3

In a power plant, water (density $$ = 1000\,\,kg/{m^3}$$ ) is pumped from $$80$$ $$kPa$$ to $$3$$ $$MPa$$. The pump has an isentropic efficiency of $$0.85.$$ Assuming that the temperature of the water remains the same, the specific work (in $$kJ/kg$$) supplied to the pump is

$$0.34$$

$$2.48$$

$$2.92$$

$$3.43$$

GATE ME 2003

MCQ (Single Correct Answer)

-0.3

Considering the variation of static pressure and absolute velocity in an impulse stream turbine, across one row of moving blades

both pressure and velocity decrease

pressure decreases but velocity increases

pressure remains constant, while velocity increases

pressure remains constant, while velocity decreases