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Engineering Thermodynamics

Engineering Thermodynamics
The compression ratio for Diesel engines is

15 to 20
3 to 6
5 to 8
20 to 30

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Engineering Thermodynamics
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

Internal energy
External energy
Entropy
Enthalpy

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Engineering Thermodynamics
A heat exchange process in which the product of pressure and volume remains constant is known as

Throttling process
Isentropic process
Hyperbolic process
Heat exchange process

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Engineering Thermodynamics
The value of one bar (in S. I. units) is equal to

1 × 104 N/m2
1 × 102 N/m2
1 × 105 N/m2
1 × 103 N/m2

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Engineering Thermodynamics
Stirling and Ericsson cycles are

Quasi-static cycles
Reversible cycles
Irreversible cycles
Semi-reversible cycles

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Engineering Thermodynamics
A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is

-40 kJ
-140 kJ
+60 kJ
-80 kJ

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MORE MCQ ON Engineering Thermodynamics

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