1
GATE ME 2009
MCQ (Single Correct Answer)
+2
-0.6
A frictionless piston-cylinder device contains a gas initially at $$0.8MPa$$ and $$0.015$$ $${m^3}.$$ It expands quasi-statically at constant temperature to a final volume of $$0.030$$ $${m^3}.$$ The work output (in $$kJ$$) during this process will be
A
$$8.32$$
B
$$12.00$$
C
$$554.67$$
D
$$8320.00$$
2
GATE ME 2009
MCQ (Single Correct Answer)
+1
-0.3
If a closed system is undergoing an irreversible process, the entropy of the system
A
Must increase
B
Always remains constant
C
Must decrease
D
Can increase, decrease or remain constant
3
GATE ME 2009
MCQ (Single Correct Answer)
+2
-0.6
The inlet and the outlet conditions of steam for an adiabatic steam turbine are as indicated in the figure. The notations are as usually followed. GATE ME 2009 Thermodynamics - Rankine Cycle Question 24 English

If mass flow rate of steam through the turbine is $$20kg/s,$$ the power output of the turbine (in $$MW$$) is

A
$$12.157$$
B
$$12.941$$
C
$$168.001$$
D
$$168.785$$
4
GATE ME 2009
MCQ (Single Correct Answer)
+2
-0.6
The inlet and the outlet conditions of steam for an adiabatic steam turbine are as indicated in the figure. The notations are as usually followed. GATE ME 2009 Thermodynamics - Rankine Cycle Question 23 English

Assume the above turbine to be part of a simple Rankine cycle. The density of water at the inlet to the pump is $$1000$$ $$kg/{m^3}.$$ Ignoring kinetic and potential energy effects, the specific work (in $$kJ/kg$$) supplied to the pump is

A
$$0.293$$
B
$$0.351$$
C
$$2.930$$
D
$$3.510$$
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