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Engineering Thermodynamics

Engineering Thermodynamics
Reversed Joule cycle is known as

Rankine cycle
Bell-Coleman cycle
Stirling cycle
Carnot cycle

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Engineering Thermodynamics
Absolute zero pressure will occur

At sea level
Under vacuum conditions
At a temperature of 273°K
When molecular momentum of the system becomes zero

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Engineering Thermodynamics
One kilowatt is equal to

1 N-m/s
1000 N-m/s
1 × 106 N-m/s
100 N-m

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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
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency

2
Zero
43835
43834

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Engineering Thermodynamics
The isothermal and adiabatic processes are regarded as

Irreversible process
Reversible or irreversible process
Reversible process
None of the listed here

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