1
GATE ME 2010
MCQ (Single Correct Answer)
+2
-0.6
In a steam power plant operating on the Rankine cycle, steam enters the turbine at $$4$$ $$MPa,$$ $${350^ \circ }C$$ and exits at a pressure of $$15$$ $$kPa.$$ Then it enters the condenser and exits as saturated water. Next, a pump feeds back the water to the boiler. The adiabatic efficiency of the turbine is $$90\% $$. The thermodynamic states of water and steam are given in the table. GATE ME 2010 Thermodynamics - Rankine Cycle Question 22 English

$$h$$ is specific enthalpy, $$s$$ is specific entropy and $$v$$ the specific volume; subscripts $$f$$ and $$g$$ denote saturated liquid state and saturated vapour state.

The net work output $$(kJ/kg)$$ of the cycle is

A
$$498$$
B
$$775$$
C
$$860$$
D
$$957$$
2
GATE ME 2010
MCQ (Single Correct Answer)
+2
-0.6
In a steam power plant operating on the Rankine cycle, steam enters the turbine at $$4$$ $$MPa,$$ $${350^ \circ }C$$ and exits at a pressure of $$15$$ $$kPa.$$ Then it enters the condenser and exits as saturated water. Next, a pump feeds back the water to the boiler. The adiabatic efficiency of the turbine is $$90\% $$. The thermodynamic states of water and steam are given in the table. GATE ME 2010 Thermodynamics - Rankine Cycle Question 21 English

$$h$$ is specific enthalpy, $$s$$ is specific entropy and $$v$$ the specific volume; subscripts $$f$$ and $$g$$ denote saturated liquid state and saturated vapour state.

Heat supplied $$(kJ/kg)$$ to the cycle is

A
$$2372$$
B
$$2576$$
C
$$2863$$
D
$$3092$$
3
GATE ME 2010
MCQ (Single Correct Answer)
+1
-0.3
A hydraulic turbine develops $$1000$$ $$kW$$ power for a head of $$40$$ $$m.$$ If the head is reduced to $$20$$ $$m,$$ the power developed (in $$kW$$) is
A
$$177$$
B
$$354$$
C
$$500$$
D
$$707$$
4
GATE ME 2010
MCQ (Single Correct Answer)
+1
-0.3
A phenomenon is modeled using $$n$$ dimensional variables with $$k$$ primary dimensions. The number of non-dimensional variables is
A
$$k$$
B
$$n$$
C
$$n-k$$
D
$$n+k$$
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