1
GATE ME 2008
MCQ (Single Correct Answer)
+2
-0.6
$$A$$ gas expands in a frictionless piston-cylinder arrangement. The expansion process is very slow, and is resisted by an ambient pressure of $$100kPa.$$ During the expansion process, the pressure of the system (gas) remains constant at $$300$$ $$kPa.$$ The change in volume of the gas is $$0.01{m^3}.$$

The maximum amount of work that could be utilized from the above process is

A
$$0$$ $$kJ$$
B
$$1$$ $$kJ$$
C
$$2$$ $$kJ$$
D
$$3$$ $$kJ$$
2
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 3 English
A
$$720$$ $$Kj/kg$$
B
$$2280$$ $$Kj/kg$$
C
$$1500$$ $$Kj/kg$$
D
$$3000$$ $$Kj/kg$$
3
GATE ME 2008
MCQ (Single Correct Answer)
+2
-0.6
Water having a density of $$1000\,\,kg/{m^3},$$ issues from a Nozzle with a velocity of $$10$$ $$m/s$$ and the jet strikes a bucket mounted on a Pelton wheel. The wheel rotates at $$10$$ $$rad/s$$. The mean diameter of the wheel is $$1$$ $$m.$$ The jet is split into two equal streams by the bucket; such each stream is deflected by $${120^ \circ }$$, as shown in the figure. Friction in the bucket may be neglected. Magnitude of the torque exerted by the water on the wheel, per unit mass flow rate of the incoming jet, is GATE ME 2008 Turbo Machinery - Turbo Machinery Question 1 English
A
$$0\,\,\left( {N - m} \right)/\left( {kg/s} \right)$$
B
$$1.25\,\,\left( {N - m} \right)/\left( {kg/s} \right)$$
C
$$2.5\,\,\left( {N - m} \right)/\left( {kg/s} \right)$$
D
$$3.75\,\,\left( {N - m} \right)/\left( {kg/s} \right)$$
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