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Engineering Thermodynamics

Engineering Thermodynamics
According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.

None of these
Increases
Remains constant
Decreases

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Engineering Thermodynamics
The efficiency of Diesel cycle with decrease in cut-off

First decreases and then increases
Increases
Decreases
First increases and then decreases

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Engineering Thermodynamics
The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will

Increase
Decrease
Increase/decrease depending on application
Remain unchanged

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Engineering Thermodynamics
The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as

Dual combustion cycle
Diesel cycle
Atkinson cycle
Rankine cycle

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

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

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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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