Thermodynamic cycles

The total energy of a system equals 

• its heat and temperature
• its work and temperature
• its heat and work
• its heat

A thermodynamic cycle which uses heat exchange to create work is called ...

• a heat reservoir
• a heat pump
• a perpetual motion machine
• a heat engine

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Cycle efficiency is defined as ...

• 1 - Q_c/Q_h
• the amount of work added 
• the amount of heat added - amount of heat removed
• the amount of heat added

The ideal thermodynamic cycle is called 

• the Crovener cycle
• the Carnot cycle
• the Nitrogen cycle
• the Somenoc cycle

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Steam power plants use this type of cycle 

• Carnot cycle
• Brayton cycle
• Rankine cycle
• Diesel cycle

Jet engines and gas turbine power plants use this type of cycle 

• Carnot cycle
• Brayton cycle
• Rankine cycle
• Diesel cycle

This type of cycle is used in four stroke compression ignition engines

• Carnot cycle
• Brayton cycle
• Rankine cycle
• Diesel cycle

A combined cycle power plant uses 

• a diesel cycle on top of a jet brayton cycle
• a bicycle on top of a tricycle
• a rankine steam cycle on top of a diesel cycle
• a steam rankine cycle on top of a jet brayton cycle

The work available in a Carnot cycle is equal to 

• the area under the high temperature curve
• the area under the low temperature curve
• the area above the low temperature curve and below the high temperature curve

All processes in a Carnot cycle must be reversible. As a result, a Carnot engine must operate ... 

• at a low temperature
• very slowly
• at high temperature
• both forward and backward

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