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Engineering Thermodynamics

Engineering Thermodynamics
The unit of energy is S. I. units is

Watt (W)
Joule meter (Jm)
Joule (J)
Joule/meter (J/m)

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Engineering Thermodynamics
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

Atom
Molecule
Compound
Element

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Engineering Thermodynamics
Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle

Expansion and compression are isentropic
Heat rejection is lower
Maximum temperature is higher
Combustion is at constant volume

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Engineering Thermodynamics
An open cycle gas turbine works on

Carnot cycle
Stirling cycle
Joule's cycle
Otto cycle

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Engineering Thermodynamics
One kilowatt is equal to

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

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Engineering Thermodynamics
The amount of heat generated per kg of fuel is known as

Heat energy
Higher calorific value
Calorific value
Lower calorific value

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