1
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 $$S$$
2
GATE ME 2006
MCQ (Single Correct Answer)
+2
-0.6
Determine the correctness or otherwise of the following Assertion $$(a)$$ and the Reason$$(r).$$

Assertion(A): In a power plant working on a Rankine cycle, the regenerative feed water heating improves the efficiency of the steam turbine.

Reason(R): The regenerative feed water heating raises the average temperature of heat addition in the Rankine cycle.

A
Both $$A$$ and $$R$$ are true and $$R$$ is the correct Reason for $$A$$
B
Both $$A$$ and $$R$$ are true but $$R$$ is NOT the correct reason for $$A$$
C
Both $$A$$ and $$R$$ are false
D
$$A$$ is false but $$R$$ is true
3
GATE ME 2006
MCQ (Single Correct Answer)
+2
-0.6
Assertion (A): Condenser is an essential equipment in a steam power plant.

Reason(R): For the same mass flow rate and the same pressure rise, a water pump requires substantially less power than a steam compressor.

A
Both $$[a]$$ and $$[r]$$ are true and $$[r]$$ is the correct reason for $$[a].$$
B
Both $$[a]$$ and $$[r]$$ are true but $$[r]$$ is NOT the correct reason for $$[a].$$
C
$$[a]$$ is true but $$[r]$$ is false
D
$$[a]$$ is false and $$[r]$$ is true
4
GATE ME 2005
MCQ (Single Correct Answer)
+2
-0.6
In the velocity diagram shown below, $$u=$$ blade velocity, $$C=$$ absolute fluid velocity and $$W = $$ relative velocity of fluid and the subscripts $$1$$ and $$2$$ refer to inlet and outlet. GATE ME 2005 Thermodynamics - Rankine Cycle Question 28 English
A
an impulse turbine
B
a reaction turbine
C
a centrifugal compressor
D
an axial flow compressor
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