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Engineering Thermodynamics

Engineering Thermodynamics
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

None of these
Equal to
Greater than
Less than

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Engineering Thermodynamics
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is

25 bar
34.81 bar
23.97 bar
26.03 bar

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Engineering Thermodynamics
The calorific value of gaseous fuel is expressed in

kJ/m3
kJ/kg
kJ/m2
kJ

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Engineering Thermodynamics
Which of the following process can be made reversible with the help of a regenerator?

Constant pvn process
All of these
Constant pressure process
Constant volume process

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Engineering Thermodynamics
If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as

Adiabatic expansion
Free expansion
Hyperbolic expansion
Throttling

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Engineering Thermodynamics
A cycle consisting of two constant pressure and two isentropic processes is known as

Stirling cycle
Otto cycle
None of the listed here
Carnot cycle

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