1
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 25 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
$$168.785$$
2
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

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
$$3.510$$
3
GATE ME 2008
MCQ (Single Correct Answer)
+2
-0.6
A thermal power plant operates on a regenerative cycle with a single open feed water heater, as shown in the figure. For the state points shown, the specific enthalpies are: $${h_1} = 2800\,\,kJ/kg$$ and $${h_2} = 200\,\,kJ/kg$$. The bleed to the feed-water heater is $$20\% $$ of the boiler steam generation rate. The specific enthalpy at state $$3$$ is GATE ME 2008 Thermodynamics - Rankine Cycle Question 4 English
A
$$720$$ $$Kj/kg$$
B
$$2280$$ $$Kj/kg$$
C
$$1500$$ $$Kj/kg$$
D
$$3000$$ $$Kj/kg$$
4
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
Which combination of the following statements is correct?

The incorporation of re-heater in a steam power plant.

$$P:$$ always increases the thermal efficiency of the plant.
$$Q:$$ always increases the dryness function of steam at condenser inlet.
$$R:$$ always increases the mean temperature of heat addition
$$S:$$ always increases the specific work output.

A
$$P$$ and $$S$$
B
$$Q$$ and $$S$$
C
$$P,R$$ and $$S$$
D
$$P,Q,R$$ and $$S$$
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