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.

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.
by

1 Answer

Answer :

Answer : e
by

Related questions

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

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

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

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 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

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

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

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

For heat engine operating between two temperatures (T1>T2), what is the maximum efficiency attainable?  A. Eff = 1 – (T2/T1)  B. Eff = 1 - (T1/T2)  C. Eff = T1 - T2  D. Eff = 1 - (T2/T1)^2

Description : For heat engine operating between two temperatures (T1>T2), what is the maximum efficiency attainable?  A. Eff = 1 – (T2/T1)  B. Eff = 1 - (T1/T2)  C. Eff = T1 - T2  D. Eff = 1 - (T2/T1)^2

Last Answer : Eff = 1 – (T2/T1)

Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the (A) Two temperatures only (B) Pressure of working fluid (C) Mass of the working fluid (D) Mass and pressure both of the working fluid

Description : Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the (A) Two temperatures only (B) Pressure of working fluid (C) Mass of the working fluid (D) Mass and pressure both of the working fluid

Last Answer : (A) Two temperatures only

Is a thermodynamic system that operates continuously with only energy (heat and work) crossing its boundaries?  a. Heat Engine  b. Heat Reservoir  c. Heat Source  d. Heat Sink

Description : Is a thermodynamic system that operates continuously with only energy (heat and work) crossing its boundaries?  a. Heat Engine  b. Heat Reservoir  c. Heat Source  d. Heat Sink

Last Answer : Heat Engine

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

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

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

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

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

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

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 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

An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be  (a) 650°K  (b) 600°K  (c) 625°K  (d) 700°K  (e) 750°K.

Description : An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be  (a) 650°K  (b) 600°K  (c) 625°K  (d) 700°K  (e) 750°K.

Last Answer : Answer : a

The low temperature reservoir of the heat reservoirs is known as ______.  A. Source reservoir  B. Heel reservoir  C. Toe reservoir  D. Sink reservoir

Description : The low temperature reservoir of the heat reservoirs is known as ______.  A. Source reservoir  B. Heel reservoir  C. Toe reservoir  D. Sink reservoir

Last Answer : Sink reservoir

Efficiency of a Carnot engine working between temperatures T1 and T2(T1 < T) is (A) (T2- T1)/T2 (B) (T2- T1)/T1 (C) (T1- T2)/T2 (D) (T1- T2)/T1

Description : Efficiency of a Carnot engine working between temperatures T1 and T2(T1 < T) is (A) (T2- T1)/T2 (B) (T2- T1)/T1 (C) (T1- T2)/T2 (D) (T1- T2)/T1

Last Answer : (A) (T2- T1)/T2

For same compression ratio and for same heat added  (a) Otto cycle is more efficient than Diesel cycle  (b) Diesel cycle is more efficient than Otto cycle  (c) efficiency depends on other factors  (d) both Otto and Diesel cycles are equally efficient  (e) none of the above.

Description : For same compression ratio and for same heat added  (a) Otto cycle is more efficient than Diesel cycle  (b) Diesel cycle is more efficient than Otto cycle  (c) efficiency depends on other factors  (d) both Otto and Diesel cycles are equally efficient  (e) none of the above.

Last Answer : Answer : a

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 efficiency of Diesel cycle depends upon  A. temperature limits  B. pressure ratio  C. compression ratio  D. cut-off ratio and compression ratio

Description : The efficiency of Diesel cycle depends upon  A. temperature limits  B. pressure ratio  C. compression ratio  D. cut-off ratio and compression ratio

Last Answer : Answer: D

The efficiency of a dual combustion cycle __________ upon cut-off ratio.  A. depends  B. does not depend

Description : The efficiency of a dual combustion cycle __________ upon cut-off ratio.  A. depends  B. does not depend

Last Answer : Answer: A

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

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

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

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

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

What is defined as the ratio of the net electrical power output to the rate of fuel energy input?  A. Combustion efficiency  B. Thermal efficiency  C. Overall efficiency  D. Furnace efficiency

Description : What is defined as the ratio of the net electrical power output to the rate of fuel energy input?  A. Combustion efficiency  B. Thermal efficiency  C. Overall efficiency  D. Furnace efficiency

Last Answer : Overall efficiency

A simple steam engine receives steam from the boiler at 180˚C and exhausts directly into the air at 100˚C. What is the upper limit of its efficiency?  a. 11.28 %  b. 36.77 %  c. 20.36 %  d. 17.66 %

Description : A simple steam engine receives steam from the boiler at 180˚C and exhausts directly into the air at 100˚C. What is the upper limit of its efficiency?  a. 11.28 %  b. 36.77 %  c. 20.36 %  d. 17.66 %

Last Answer : 17.66 %

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

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

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

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

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

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

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

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

Last Answer : 1824

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

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