GATE ME 2014 Set 3 | GATE ME Year Wise Previous Years Questions

GATE ME 2014 Set 3

MCQ (Single Correct Answer)

-0.3

Which one of the following pairs of equations describes an irreversible heat engine?

$$\oint {\delta Q} > 0\,\,$$ and $$\oint {{{\delta Q} \over T}} < 0$$

$$\oint {\delta Q} > 0\,\,\,\,and\,\,\,\oint {{{\delta Q} \over T}} < 0$$

$$\oint {\delta Q} > 0\,\,\,\,and\,\,\,\oint {{{\delta Q} \over T}} > 0$$

$$\oint {\delta Q} < 0\,\,\,\,and\,\,\,\oint {{{\delta Q} \over T}} > 0$$

GATE ME 2014 Set 3

Numerical

-0

An amount of $$100$$ $$kW$$ of heat is transferred through a wall in steady state. One side of the wall is maintained at $${127^ \circ }C$$ and the other side at $${27^ \circ }C$$. The entropy generated $$($$in $$W/K)$$ due to the heat transfer through the wall is _____________

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GATE ME 2014 Set 3

Numerical

-0

A source at temperature of $$500K$$ provides $$1000$$ $$kJ$$ of heat. The temperature of environment is $${27^ \circ }C.$$ The maximum useful work (in $$kJ$$) that can be obtained from the heat source is __________

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GATE ME 2014 Set 3

Numerical

-0

At the inlet of an axial impulse turbine rotor, the blade linear speed is 25 m/s, the magnitude of absolute velocity is 100 m/s and the angle between them is 25°. The relative velocity and the axial component of velocity remain the same between the inlet and outlet of the blades. The blade inlet and outlet velocity triangles are shown in the figure. Assuming no losses, the specific work (in J/kg) is ____________. GATE ME 2014 Set 3 Thermodynamics - Rankine Cycle Question 19 English

GATE ME 2014 Set 3 Thermodynamics - Rankine Cycle Question 19 English

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