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Engineering Thermodynamics

Engineering Thermodynamics
The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)

Ru × T
2 Ru × T
1.5 Ru × T
3 Ru × T

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Engineering Thermodynamics
In closed cycle gas turbine, the air is compressed

None of these
Isothermally
Polytropically
Isentropically

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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 general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)

Q1 - 2 = dU/W1 - 2
Q1 - 2 = dU + W1 - 2
Q1 - 2 = dU × W1 - 2
Q1 - 2 = dU - W1 - 2

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Engineering Thermodynamics
A sudden fall in the barometer reading is a sign of approaching

Rains
Storm
Fine weather
Cold wave

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Engineering Thermodynamics
The processes occurring in open system which permit the transfer of mass to and from the system, are known as

Non-flow processes
Adiabatic processes
Flow processes
None of the listed here

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