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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.

None of these
Equal to
Less than
Greater than

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Engineering Thermodynamics
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when

Process is isothermal
Process is isentropic
Process is isentropic and specific heat does not change with temperature
Flow is uniform and steady

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Engineering Thermodynamics
The efficiency of Joule cycle is

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

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Engineering Thermodynamics
1 kgf/cm² is equal to

760 mm Hg
1 mm Hg
735.6 mm Hg
Zero mm Hg

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Engineering Thermodynamics
The temperature at which the volume of a gas becomes zero is called

Absolute temperature
None of these
Absolute scale of temperature
Absolute zero temperature

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Engineering Thermodynamics
The oxygen atom is ________ times heavier than the hydrogen atom.

16
8
32
2

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