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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of Joule cycle is

None of these
Greater than Carnot cycle
Equal to Carnot cycle
Less than Carnot cycle

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Engineering Thermodynamics
If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to

Zero
+ve
Anywhere between zero and infinity
-ve

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Engineering Thermodynamics
Energy can neither be created nor destroyed but can be converted from one form to other is inferred from

Basic law of thermodynamics
Second law to thermodynamics
First law of thermodynamics
Zeroth low of thermodynamic

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Engineering Thermodynamics
The efficiency of Diesel cycle depends upon

Pressure ratio
Temperature limits
Cut-off ratio and compression ratio
Compression ratio

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Engineering Thermodynamics
For a perfect gas, according to Boyle’s law (where P = Absolute pressure, V = Volume and T = Absolute temperature)

T/P = constant, if v is kept constant
P v = constant, if T is kept constant
V/T = constant, if p is kept constant
P/T = constant, if v is kept constant

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Engineering Thermodynamics
The fuel mostly used in steam boilers is

Non-coking bituminous coal
Peat
Coking bituminous coal
Brown coal

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MORE MCQ ON Engineering Thermodynamics

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