Carnot cycle is the best known reversible cycle which was first proposed in what year?  A. 1842  B. 1824  C. 1832  D. 1834

Carnot cycle is the best known reversible cycle which was first proposed in what year?  A. 1842  B. 1824  C. 1832  D. 1834
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What is a heat engine that operates on the reversible Carnot cycle called?  A. Carnot heat engine  B. Ideal heat engine  C. Most efficient heat engine  D. Best heat engine

Description : What is a heat engine that operates on the reversible Carnot cycle called?  A. Carnot heat engine  B. Ideal heat engine  C. Most efficient heat engine  D. Best heat engine

Last Answer : Carnot heat engine

The Carnot cycle is composed of how many reversible processes?  A. 2  B. 3  C. 4  D. 5

Description : The Carnot cycle is composed of how many reversible processes?  A. 2  B. 3  C. 4  D. 5

Last Answer : 4

Which of the following cycles is not a reversible cycle  (a) Carnot  (b) Ericsson  (c) Stirling  (d) Joule  (e) none of the above.

Description : Which of the following cycles is not a reversible cycle  (a) Carnot  (b) Ericsson  (c) Stirling  (d) Joule  (e) none of the above.

Last Answer : Answer : e

Carnot cycle is  (a) a reversible cycle (ft) an irreversible cycle  (c) a semi-reversible cycle  (d) a quasi static cycle  (e) an adiabatic irreversible cycle.

Description : Carnot cycle is  (a) a reversible cycle (ft) an irreversible cycle  (c) a semi-reversible cycle  (d) a quasi static cycle  (e) an adiabatic irreversible cycle.

Last Answer : Answer : a

The efficiency of Carnot cycle is maximum for  (a) gas engine  (b) well lubricated engine  (c) petrol engine  (d) steam engine  (e) reversible engine.

Description : The efficiency of Carnot cycle is maximum for  (a) gas engine  (b) well lubricated engine  (c) petrol engine  (d) steam engine  (e) reversible engine.

Last Answer : Answer : e

Carnot cycle has maximum efficiency for  (a) reversible engine  (b) irreversible engine  (c) new engine  (d) petrol engine  (e) diesel engine.

Description : Carnot cycle has maximum efficiency for  (a) reversible engine  (b) irreversible engine  (c) new engine  (d) petrol engine  (e) diesel engine.

Last Answer : Answer : a

Who proposed the Carnot cycle?  A. Sammy Carnot  B. Sonny Carnot  C. Sadi Carnot  D. Suri Carnot

Description : Who proposed the Carnot cycle?  A. Sammy Carnot  B. Sonny Carnot  C. Sadi Carnot  D. Suri Carnot

Last Answer : Sadi Carnot

What states that thermal efficiencies of all reversible heat engines operating between the same two reservoirs are the same and that no heat engine is more efficient than a reversible one operating between the same two reservoirs?  A. Ericson principle  B. Carnot principle  C. Otto principle  D. Stirling principle

Description : What states that thermal efficiencies of all reversible heat engines operating between the same two reservoirs are the same and that no heat engine is more efficient than a reversible one operating between the ... A. Ericson principle  B. Carnot principle  C. Otto principle  D. Stirling principle

Last Answer : Carnot principle

A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as  A.Carnot cycle  B.Stirling cycle  C.Otto cycle  D.Diesel cycle

Description : A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as  A.Carnot cycle  B.Stirling cycle  C.Otto cycle  D.Diesel cycle

Last Answer : Answer: D

A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as  A. reversible cycle  B. irreversible cycle  C. thermodynamic cycle  D. none of these

Description : A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as  A. reversible cycle  B. irreversible cycle  C. thermodynamic cycle  D. none of these

Last Answer : Answer: C

It is used for gas turbines which operates on an open cycle where both the compression and expansion processes take place in rotating machinery.  a. Dual Cycle  b. Otto Cycle  c. Carnot Cycle  d. Brayton Cycle

Description : It is used for gas turbines which operates on an open cycle where both the compression and expansion processes take place in rotating machinery.  a. Dual Cycle  b. Otto Cycle  c. Carnot Cycle  d. Brayton Cycle

Last Answer : Brayton Cycle

A Bell-Coleman cycle is a reversed of which the following cycles?  a. Stirling cycle  b. Joule cycle  c. Carnot cycle  d. Otto cycle

Description : A Bell-Coleman cycle is a reversed of which the following cycles?  a. Stirling cycle  b. Joule cycle  c. Carnot cycle  d. Otto cycle

Last Answer : Joule cycle

Which of the following is used in thermal power plant?  a. Brayton cycle  b. Reversed carnot cycle  c. Rankine cycle  d. Otto cycle

Description : Which of the following is used in thermal power plant?  a. Brayton cycle  b. Reversed carnot cycle  c. Rankine cycle  d. Otto cycle

Last Answer : Rankine cycle

The most efficient cycle that can operate between two constant temperature reservoir is the _________.  a. Otto Cycle  b. Lazare Cycle  c. Isothermal Cycle  d. Carnot Cycle

Description : The most efficient cycle that can operate between two constant temperature reservoir is the _________.  a. Otto Cycle  b. Lazare Cycle  c. Isothermal Cycle  d. Carnot Cycle

Last Answer : Carnot Cycle

In thermodynamics, a throttling process, also called a _________, is a type of isenthalpic process where a liquid or gas is cooled as it passes from a higher pressure state to a lower pressure state.  a. Rankine Process  b. Carnot Cycle  c. Joule-Thomson process  d. Refrigeration process

Description : In thermodynamics, a throttling process, also called a _________, is a type of isenthalpic process where a liquid or gas is cooled as it passes from a higher pressure state to a lower pressure state.  a. Rankine Process  b. Carnot Cycle  c. Joule-Thomson process  d. Refrigeration process

Last Answer : Joule-Thomson process

The Carnot cycle is composed of ______ processes.  A. One isothermal and one adiabatic  B. One isothermal and two adiabatic  C. Two isothermal and one adiabatic  D. Two isothermal and two adiabatic

Description : The Carnot cycle is composed of ______ processes.  A. One isothermal and one adiabatic  B. One isothermal and two adiabatic  C. Two isothermal and one adiabatic  D. Two isothermal and two adiabatic

Last Answer : Two isothermal and two adiabatic

Which is the incorrect statement about Carnot cycle?  A. It is used as the alternate standard of comparison of all heat engines.  B. All the heat engines are based on Carnot cycle.  C. It provides concept of maximising work output between the two temperature limits.  D. all of the above

Description : Which is the incorrect statement about Carnot cycle?  A. It is used as the alternate standard of comparison of all heat engines.  B. All the heat engines are based on Carnot cycle.  C. It provides concept of maximising work output between the two temperature limits.  D. all of the above

Last Answer : Answer: B

During which of the following process does heat rejection takes place in Carnot cycle?  A. Isothermal expansion  B. Isentropic expansion  C. Isothermal compression  D. Isentropic compression

Description : During which of the following process does heat rejection takes place in Carnot cycle?  A. Isothermal expansion  B. Isentropic expansion  C. Isothermal compression  D. Isentropic compression

Last Answer : Answer: C

The efficiency of Joule cycle is  A. greater than Carnot cycle  B. less than Carnot cycle  C. equal to Carnot cycle  D. none of these

Description : The efficiency of Joule cycle is  A. greater than Carnot cycle  B. less than Carnot cycle  C. equal to Carnot cycle  D. none of these

Last Answer : Answer: B

The efficiency of Stirling cycle is __________ Carnot cycle.  A. greater than  B. less than  C. equal to

Description : The efficiency of Stirling cycle is __________ Carnot cycle.  A. greater than  B. less than  C. equal to

Last Answer : Answer: C

The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that  (a) carnot cycle can’t work with saturated steam  (b) heat is supplied to water at temperature below the maximum temperature of the cycle  (c) a rankine cycle receives heat at two places  (d) rankine cycle is hypothetical  (e) none of the above.

Description : The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that  (a) carnot cycle can't work with saturated steam  (b) heat is supplied to water at temperature ... heat at two places  (d) rankine cycle is hypothetical  (e) none of the above.

Last Answer : Answer : b

The following cycle is used for air craft refrigeration  (a) Brayton cycle  (b) Joule cycle  (c) Carnot cycle  (d) Bell-Coleman cycle  (e) Reversed-Brayton cycle.

Description : The following cycle is used for air craft refrigeration  (a) Brayton cycle  (b) Joule cycle  (c) Carnot cycle  (d) Bell-Coleman cycle  (e) Reversed-Brayton cycle.

Last Answer : Answer : e

Reversed joule cycle is called  (a) Carnot cycle  (b) Rankine cycle  (c) Brayton cycle  (d) Bell Coleman cycle  (e) Dual cycle.

Description : Reversed joule cycle is called  (a) Carnot cycle  (b) Rankine cycle  (c) Brayton cycle  (d) Bell Coleman cycle  (e) Dual cycle.

Last Answer : Answer : c

If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle  (a) more  (b) less  (c) equal  (d) depends on other factors  (e) none of the above.

Description : If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle  (a) more  (b) less  (c) equal  (d) depends on other factors  (e) none of the above.

Last Answer : Answer : c

Thermal power plant works on  (a) Carnot cycle  (b) Joule cycle  (d) Rankine cycle  (d) Otto cycle  (e) Brayton cycle.

Description : Thermal power plant works on  (a) Carnot cycle  (b) Joule cycle  (d) Rankine cycle  (d) Otto cycle  (e) Brayton cycle.

Last Answer : Answer : c

Which of the following is an irreversible cycle  (a) carnot  (b) Stirling  (c) ericsson  (d) all of the above  (e) none of the above.

Description : Which of the following is an irreversible cycle  (a) carnot  (b) Stirling  (c) ericsson  (d) all of the above  (e) none of the above.

Last Answer : Answer : e

In a Carnot cycle, heat is transferred at  (a) constant pressure  (b) constant volume  (c) constant temperature  (d) constant enthaply  (e) any one of the above.

Description : In a Carnot cycle, heat is transferred at  (a) constant pressure  (b) constant volume  (c) constant temperature  (d) constant enthaply  (e) any one of the above.

Last Answer : Answer : c

An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is  (a) feasible  (b) impossible  (c) possible  (d) possible, but with lot of sophistications  (e) desirable.

Description : An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is  (a) feasible  (b) impossible  (c) possible  (d) possible, but with lot of sophistications  (e) desirable.

Last Answer : Answer : d

Carnot cycle efficiency is maximum when  (a) initial temperature is 0°K  (b) final temperature is 0°K  (c) difference between initial and final temperature is 0°K  (d) final temperature is 0°C  (e) initial temperature is minimum possible.

Description : Carnot cycle efficiency is maximum when  (a) initial temperature is 0°K  (b) final temperature is 0°K  (c) difference between initial and final temperature is 0°K  (d) final temperature is 0°C  (e) initial temperature is minimum possible.

Last Answer : Answer : b

Carnot cycle efficiency depends upon  (a) properties of the medium/substance used  (b) condition of engine  (c) working condition  (d) temperature range of operation  (e) effectiveness of insulating material around the engine.

Description : Carnot cycle efficiency depends upon  (a) properties of the medium/substance used  (b) condition of engine  (c) working condition  (d) temperature range of operation  (e) effectiveness of insulating material around the engine.

Last Answer : Answer : d

In order that a cycle be reversible, following must be satisfied  (a) free expansion or friction resisted expansion/compression process should not be encountered  (b) when heat is being absorbed, temperature of hot source and working sub¬stance should be same  (c) when beat is being rejected, temperature of cold source and working sub-stance should be same  (d) all of the above  (e) none of the above.

Description : In order that a cycle be reversible, following must be satisfied  (a) free expansion or friction resisted expansion/compression process should not be encountered  (b) when heat is being absorbed, temperature of hot ... sub-stance should be same  (d) all of the above  (e) none of the above.

Last Answer : Answer : d

According to first law of thermodynamics  (a) mass and energy are mutually convertible  (b) Carnot engine is most efficient  (c) heat and work are mutually convertible  (d) mass and light are mutually convertible  (e) heat flows from hot substance to cold substance.

Description : According to first law of thermodynamics  (a) mass and energy are mutually convertible  (b) Carnot engine is most efficient  (c) heat and work are mutually convertible  (d) mass and light are mutually convertible  (e) heat flows from hot substance to cold substance.

Last Answer : Answer : c

Which of the following engines is the most efficient?  a. Gas turbine  b. Diesel engine  c. Carnot engine  d. Gasoline engine

Description : Which of the following engines is the most efficient?  a. Gas turbine  b. Diesel engine  c. Carnot engine  d. Gasoline engine

Last Answer : Carnot engine

Which of the following is least efficient?  a. Gas turbine  b. Diesel engine  c. Carnot engine  d. Gasoline engine

Description : Which of the following is least efficient?  a. Gas turbine  b. Diesel engine  c. Carnot engine  d. Gasoline engine

Last Answer : Gasoline engine

Who is the father of thermodynamics?  a. Lazare Carnot  b. Sadi Carnot  c. William Thompson  d. Rudolf Classius

Description : Who is the father of thermodynamics?  a. Lazare Carnot  b. Sadi Carnot  c. William Thompson  d. Rudolf Classius

Last Answer : Sadi Carnot

What is the highest efficiency of heat engine operating between the two thermal energy reservoirs at temperature limits?  A. Ericson efficiency  B. Otto efficiency  C. Carnot efficiency  D. Stirling efficiency

Description : What is the highest efficiency of heat engine operating between the two thermal energy reservoirs at temperature limits?  A. Ericson efficiency  B. Otto efficiency  C. Carnot efficiency  D. Stirling efficiency

Last Answer : Carnot efficiency

Which of the following cycles has maximum efficiency  (a) Rankine  (b) Stirling  (c) Carnot  (d) Brayton  (e) Joule.

Description : Which of the following cycles has maximum efficiency  (a) Rankine  (b) Stirling  (c) Carnot  (d) Brayton  (e) Joule.

Last Answer : Answer : c

The efficiency of a Carnot engine depends on  (a) working substance  (b) design of engine  (c) size of engine  (d) type of fuel fired  (e) temperatures of source and sink.

Description : The efficiency of a Carnot engine depends on  (a) working substance  (b) design of engine  (c) size of engine  (d) type of fuel fired  (e) temperatures of source and sink.

Last Answer : Answer : e

The more effective way of increasing efficiency of Carnot engine is to  (a) increase higher temperature  (b) decrease higher temperature  (c) increase lower temperature  (d) decrease lower temperature  (e) keep lower temperature constant.

Description : The more effective way of increasing efficiency of Carnot engine is to  (a) increase higher temperature  (b) decrease higher temperature  (c) increase lower temperature  (d) decrease lower temperature  (e) keep lower temperature constant.

Last Answer : Answer : d

Which of the following represents the perpetual motion of the first kind  (a) engine with 100% thermal efficiency  (b) a fully reversible engine  (c) transfer of heat energy from low temperature source to high temperature source  (d) a machine that continuously creates its own energy  (e) production of energy by temperature differential in sea water at different levels.

Description : Which of the following represents the perpetual motion of the first kind  (a) engine with 100% thermal efficiency  (b) a fully reversible engine  (c) transfer of heat energy from low ... its own energy  (e) production of energy by temperature differential in sea water at different levels.

Last Answer : Answer : d

A control volume refers to what?  a. A fixed region in space  b. A reversible process  c. an isolated system  d. a specified mass

Description : A control volume refers to what?  a. A fixed region in space  b. A reversible process  c. an isolated system  d. a specified mass

Last Answer : A fixed region in space

What is another term used for isometric processes?  a. Isochoric process  b. Iolytropic process  c. Isothermal process  d. Reversible process

Description : What is another term used for isometric processes?  a. Isochoric process  b. Iolytropic process  c. Isothermal process  d. Reversible process

Last Answer : Isochoric process

What is referred to by control volume?  a. An isolated system  b. Closed system  c. Fixed region in space  d. Reversible process only

Description : What is referred to by control volume?  a. An isolated system  b. Closed system  c. Fixed region in space  d. Reversible process only

Last Answer : Fixed region in space

Which of the following occurs in a reversible polytrophic process?  a. Enthalpy remains constant  b. Internal energy does not change  c. Some heat transfer occurs  d. Entropy remains constant

Description : Which of the following occurs in a reversible polytrophic process?  a. Enthalpy remains constant  b. Internal energy does not change  c. Some heat transfer occurs  d. Entropy remains constant

Last Answer : Some heat transfer occurs

When the expansion of compression of gas takes place without transfer of heat to or from the gas the process is called  a. reversible  b. adiabatic  c. polytropic  d. isothermal

Description : When the expansion of compression of gas takes place without transfer of heat to or from the gas the process is called  a. reversible  b. adiabatic  c. polytropic  d. isothermal

Last Answer : adiabatic

Which of the following is the work done for a closed reversible isometric system?  a. negative  b. positive  c. zero  d. undefined

Description : Which of the following is the work done for a closed reversible isometric system?  a. negative  b. positive  c. zero  d. undefined

Last Answer : zero

What refers to the thermodynamic properties which are independent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Description : What refers to the thermodynamic properties which are independent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Last Answer : Intensive properties

What refers to the thermodynamic properties which are dependent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Description : What refers to the thermodynamic properties which are dependent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Last Answer : Extensive property

What is the value of the work done for a closed, reversible isometric system?  a. zero  b. positive  c. negative  d. positive or negative

Description : What is the value of the work done for a closed, reversible isometric system?  a. zero  b. positive  c. negative  d. positive or negative

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Another name of reversible adiabatic process  a. Isentropic Process  b. Isometric Process  c. Isobaric Process  d. Isothermal Process

Description : Another name of reversible adiabatic process  a. Isentropic Process  b. Isometric Process  c. Isobaric Process  d. Isothermal Process

Last Answer : Isentropic Process