| 1. | A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as ? | |
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Carnot cycle
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Stirling cycle
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Otto cycle
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Diesel cycle
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Report Question| 2. | For the constant pressure and heat input, the air standard efficiency of gas power cycle is in ? | |
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Dual cycle, Diesel cycle, Otto cycle
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Otto cycle, Diesel cycle, Dual cycle
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Dual cycle, Otto cycle, Diesel cycle
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Diesel cycle, Otto cycle, Dual cycle
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| 3. | The variables which control the physical properties of a perfect gas are ? | |
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pressure exerted by the gas
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volume occupied by the gas
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temperature of the gas
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all of these
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| 4. | Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle ? | |
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combustion is at constant volume
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expansion and compression are isentropic
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maximum temperature is higher
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heat rejection is lower
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| 5. | According to First law of thermodynamics ? | |
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total internal energy of a system during a process remains constant
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total energy of a system remains constant
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work done by a system is equal to the heat transferred by the system
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internal energy, enthalpy and entropy during a process remains constant
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| 6. | Stirling cycle consists of ? | |
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two constant volume and two isentropic processes
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two constant volume and two isothermal processes
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two constant pressure and two isothermal processes
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one constant volume, one constant pressure and two isentropic processes
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| 7. | Select the correct statement as per Charles' law ? | |
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p.v = constant, if T is kept constant
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v/T= constant, if p is kept constant
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p/T= constant, if v is kept constant
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T/p = constant, if v is kept constant
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| 8. | The heat energy stored in the gas and used for raising the temperature of the gas is known as ? | |
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external energy
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internal energy
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kinetic energy
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molecular energy
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| 9. | The compression ratio is the ratio of ? | |
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swept volume to total volume
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total volume to swept volume
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swept volume to clearance volume
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total volume to clearance volume
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| 10. | Otto cycle is also known as ? | |
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constant pressure cycle
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constant volume cycle
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constant temperature cycle
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constant temperature and pressure cycle
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