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Engineering Thermodynamics

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

Greater than
Less than
Equal to
None of these

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Engineering Thermodynamics
When coal is first dried and then crushed to a fine powder by pulverizing machine, the resulting fuel is called

None of these
Bituminous coal
Wood charcoal
Briquetted coal

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Engineering Thermodynamics
In a reversible adiabatic process, the ratio of T1/T2 is equal to

(v2/v1)γ - 1/ γ
(v1/v2)γ - 1/ γ
(p1/p2)γ - 1/ γ
(p2/p1)γ - 1/ γ

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Engineering Thermodynamics
A tri-atomic molecule consists of __________ atoms.

Four
Three
One
Two

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Engineering Thermodynamics
The specific heat of air increases with increase in

Variation of its constituents
Pressure
Both pressure and temperature
Temperature

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Engineering Thermodynamics
Kinetic theory of gases assumes that the collisions between the molecules are

Perfectly inelastic
Partly inelastic
Perfectly elastic
Partly elastic

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