Engineering Thermodynamics
Otto cycle is also known as

Constant volume cycle
Constant pressure cycle
Constant temperature cycle
Constant temperature and pressure cycle

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Engineering Thermodynamics
The specific heat at constant volume is

The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure
Any one of the above
The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
The amount of heat required to raise the temperature of 1 kg of water through one degree

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