GATE & PSUs - Mechanical Engineering (ME)

Thermodynamic Cycles (Rankine, Brayton, Otto, Diesel, Dual) question bank (Thermodynamics & Thermal Sciences)

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Q1.
[Thermodynamic Cycles (Rankine, Brayton, Otto, Diesel, Dual) Concept 8] A Carnot heat engine operates between source temperature $T_H = 800\text{ K}$ and sink temperature $T_L = 400\text{ K}$. It rejects $1200\text{ kJ}$ of heat to the sink. What is the net mechanical work output developed by the engine?

(A)
$1200\text{ kJ}$
(B)
$2400\text{ kJ}$
(C)
$600\text{ kJ}$
(D)
$1800\text{ kJ}$
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Q2.
[Thermodynamic Cycles (Rankine, Brayton, Otto, Diesel, Dual) Concept 18] A Carnot heat engine operates between source temperature $T_H = 800\text{ K}$ and sink temperature $T_L = 400\text{ K}$. It rejects $1200\text{ kJ}$ of heat to the sink. What is the net mechanical work output developed by the engine?

(A)
$1200\text{ kJ}$
(B)
$2400\text{ kJ}$
(C)
$600\text{ kJ}$
(D)
$1800\text{ kJ}$
Show answer & solution
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