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Engineering Thermodynamics

Engineering Thermodynamics
The heat and mechanical energies are mutually convertible. This statement was established by

Boyle
Charles
None of these
Joule

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Engineering Thermodynamics
The increase in entropy of a system represents

Increase in temperature
Degradation of energy
Decrease in pressure
Increase in availability of energy

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Engineering Thermodynamics
For same compression ratio and for same heat added

Efficiency depends on other factors
Otto cycle is more efficient than Diesel cycle
Both Otto and Diesel cycles are equally efficient
Diesel cycle is more efficient than Otto cycle

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Engineering Thermodynamics
A perpetual motion machine is

A thermodynamic machine
A hypothetical machine
A hypothetical machine whose operation would violate the laws of thermodynamics
A non-thermodynamic machine

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

Otto cycle
Ericsson cycle
Stirling cycle
Joule cycle

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Engineering Thermodynamics
The natural solid fuel is

Coke
Pulverised coal
Anthracite coal
Wood

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