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## Marks 1

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A heat pump absorbs $$10$$ $$kW$$ of heat from outside environment at $$250$$ $$K$$ while absorbing $$15$$ $$kW$$ of wor...
GATE ME 2017 Set 1
The heat removal rate from a refrigerated space and the power input to the compressor are $$7.2$$ $$kW$$ and $$1.8$$ $$k... GATE ME 2016 Set 2 A Carnot engine$$(CE$$-$$1)$$works between two temperature reservoirs$$A$$and$$B,$$where$${T_A} = 900K$$and$${T...
GATE ME 2015 Set 1
The $$COP$$ of a Carnot heat pump operating between $${6^ \circ }C$$ and $${37^ \circ }C$$ is ____________
GATE ME 2015 Set 2
A reversed Carnot cycle refrigerator maintains a temperature of $$- {5^ \circ }C.$$ The ambient air temperature is $${3... GATE ME 2014 Set 4 The following four figures have been drawn to represent a fictitious thermodynamic cycle, on the$$P$$-$$v$$and$$T$$-... GATE ME 2005 An industrial heat pump operates between the temperatures of$${27^ \circ }C$$and$$ - {13^ \circ }C.$$The rates of he... GATE ME 2003 In the case of a refrigeration system undergoing an irreversible cycle,$$\oint {{{SQ} \over T}} $$is _____________$$\...
GATE ME 1995
Consider a refrigerator and a heat pump working on the reversed Carnot cycle between the same temperature limits. Which ...
GATE ME 1995
Any thermodynamic cycle operating between two temperature limits is reversible if the product of efficiency when operati...
GATE ME 1994
A reversible heat transfer demands:
GATE ME 1993
A condenser of a refrigeration system rejects heat at a rate of $$120$$ $$kW,$$ while its compressor consumes a power of...
GATE ME 1992

## Marks 2

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A reversible cycle receives $$40$$ $$kJ$$ of heat from one heat source at a temperature of $${127^ \circ }C$$ and $$37$$...
GATE ME 2016 Set 2
A reversible heat engine receives $$2$$ $$kJ$$ of heat from a reservoir at $$1000$$ $$K$$ and a certain amount of heat f...
GATE ME 2014 Set 1
An irreversible heat engine extracts heat from a high temperature source at a rate of $$100kW$$ and rejects heat to a si...
GATE ME 2007
A heat transformer is a device that transfers a part of the heat, supplied to it at an intermediate temperature, to a hi...
GATE ME 2007
A solar collector receiving solar radiation at the rate of $$0.6$$$$kW/{m^2}$$ transforms it to the internal energy of a...
GATE ME 2004
A heat engine having an efficiency of $$70\%$$ is used to drive a refrigerator having a coefficient of performance of $... GATE ME 2004 A Carnot cycle is having an efficiency of $$0.75.$$ If the temperature of the high temperature reservoir is $${727^ \cir... GATE ME 2002 A cyclic heat engine does$$50kJ$$of work per cycle. If the efficiency of the heat engine is$$75\% $$, then heat ... GATE ME 2001 For two cycles coupled in series, the topping cycle has an efficiency of$$30\% $$and the bottoming cycle has an effici... GATE ME 1996 A solar energy based heat engine which receives$$80kJ$$of heat at$${100^ \circ }C$$and rejects$$70kJ$$of... GATE ME 1996 Round the clock cooling of an apartment having a load of$$300MJ/day$\$ requires and air-conditioning plant of capac...
GATE ME 1993

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