previous year questions on thermodynamics

   



 

TOP MCQ

APPLIED THERMODYNAMICS OBJECTIVE TYPES QUESTIONS WITH ANSWERS.


Here may be a list of Top MCQ of Applied Thermodynamics Objective Type Questions And Answers provided for the AKTU and ALL OTHER UNIVERSITIES EXAMINATIONS. All the MCQ questions are most vital for AKTU especially. These sort of Objective questions are going to be asked in Diploma and Degree Internal Examinations.


1. Sterling and Ericsson cycle

(A) Reversible cycle

(B) Irreversible cycle

(C) Semi-reversible cycle

(D) Insulation irreversible cycle


2. A cycle consisting of two adiabatic processes and two constant pressure processes are understood as follows.

(A) Otto cycle

(B) Ericsson cycle

(C) Joule cycle

(D) Stirling cycle

 

3. The reverse joule cycle is named

(A) Carnot cycle

(B) Rankine cycle

(C) Brayton cycle

(D) Bell Coleman Cycle

 

4.1 kg of carbon monoxide gas requires _________ kg of oxygen to supply 11/7 kg of CO2 gas.

(A) 11/7

(B) 9/7

(C) 4/7

(D) All of the above

 

5. temperature is interpreted as follows:

(A) 237 ° C

(B) -273 ° C

(C) -237 ° C

(D) 273 ° C

 

6. The Brayton cycle consists of the subsequent four processes.

(A) Two isothermals and two isentropic

(B) Two isentropic processes and two constant volumes

(C) 2 isentropic, 1 const. volume, 1 const. pressure

(D) Two isentropic and two constant pressures

 

7. Which of the subsequent cycles isn't a reversible cycle?

(A) Carnot

(B) Ericsson

(C) Sterling

(D) Neither of the above

 

8. The cycle during which heat is supplied at a constant volume and exhausted at a continuing pressure is understood as follows.

(A) Double combustion cycle

(B) Diesel cycle

(C) Atkinson cycle

(D) Rankine cycle

 

9. Diesel cycle efficiency with reduced cutoff

(A) will increase

(B) Decrease

(C) First increase, then decrease

(D) Decrease first, then increase

 

10. Which of the subsequent cycles has the very best efficiency? 

(A) Rankin

(B) Sterling

(C) Carnot

(D) Brayton

 

11. Which of the subsequent is correct?

(A) Gauge pressure = absolute pressure + air pressure

(B) Absolute pressure = gauge pressure + air pressure

(C) Absolute pressure = gauge pressure-atmospheric pressure

(D) air pressure = absolute pressure + gauge pressure

 

12. The efficiency and power of an easy turbine cycle are as follows:

(A) Very low

(Blow

(C) High

(D) Very expensive

 

13. With increasing pressure ratio, the perfect efficiency of the Brayton cycle without regeneration is:

(A) Increase

(B) Decrease

(C) don't change

(D) Increase or decrease counting on the appliance

 

14. With increasing pressure ratio, the perfect efficiency of the Brayton cycle with regeneration is:

(A) Increase

(B) Decrease

(C) don't change

(D) Increase or decrease counting on the appliance

 

15. subsequent cycles are going to be wont to freeze the aircraft

(A) Brayton cycle

(B) Joule cycle

(C) Carnot cycle

(D) Reverse Brayton cycle

 

16. The cycle consisting of a toilet and two isothermal processes is named the Stirling cycle.

(A) Two constant pressures

(B) Two constant volumes

(C) Two isentropic

(D) One constant pressure, one constant volume

 

17. The conditions for cycle reversibility are as follows:

(A) The pressure and temperature of the working material must not be significantly different from the ambient pressure and temperature at any stage of the method.

(B) All processes that happen within the cycle of operations must be very slow

(C)All the working parts of the engine should be friction-free.

(D) All of the above

 

18. The change in entropy when heat is absorbed by the gas

(A) Positive

(B) Negative

(C) Positive or negative

(D) None of those

 

19. Throttle process is a little more process.

(A) Reversible

(B) Irreversible

(C) Reversible or irreversible

(D) None of those

 

20. The isothermal and natural process is taken into account as follows

(A) process

(B) process

(C) Reversible or process

(D) None of those

 

21. For constant pressure and warmth input, the quality air efficiency of the gas power cycle is within the following order:

(A) Dual cycle, diesel cycle, Otto cycle

(B) Otto cycle, diesel cycle, dual cycle

(C) Dual cycle, Otto cycle, diesel cycle

(D) Diesel cycle, Otto cycle, dual cycle

 

22. the overall gas equation is (where p = pressure, v = volume, m = mass, T = temperature , R = gas constant).

(A) pv = mRT

(B) pv = RTm

(C) pvm = C

(D) pv = (RT) m

 

23. For an equivalent maximum pressure and temperature

(A) The Otto cycle is more efficient than the diesel cycle

(B) Otto cycle is less efficient than Diesel cycle.

(C) Otto and diesel cycle is less efficient than Dual cycle.

(D) Dual cycle is a smaller amount efficient than Otto and diesel cycle

 

24. consistent with Charles' law, if the pressure remains constant, every 1 ° C change in temperature will change the quantity via the first volume at 0 ° C. increase.

(A) 1/27

(B) 1/93

(C) 1/173

(D) 1/273

 

25. The gas mixture expands from 0.03meter3 to 0.06meter3 at a continuing pressure of 1MegaPascal and absorbs 84kiloJoule of warmth during this method. Changes within the internal energy of the mixture are:

(A) 30 kJ

(B) 54 kJ

(C) 84 kJ

(D) 114 kJ

 

26. the entire energy of a molecule is equally shared by the varying degrees of freedom that the molecule has. This law is understood as

(A) The law of equal distribution of energy

(B) Law of conservation of energy

(C) Law of energy deterioration

(D) None of those

 

27. The isothermal process is dominated by

(A) Boyle's law

(B) Charles' law

(C) Gay-Lussac's law

(D) Avogadro's law

 

28. A cycle consisting of 1 const. pressure, 1 const. volume, and 2 isentropic processes are understood as follows:

(A) Carnot cycle

(B) Stirling cycle

(C) Otto cycle

(D) Diesel cycle

 

29. Which of the subsequent explanations is incorrect?

(A) Liquid fuel consists of hydrocarbons

(B) Liquid fuel features a higher calorific value than solid fuel

(C) Solid fuel features a higher calorific value than liquid fuel

(D) Good fuel must have a coffee ignition point

 

30. The efficiency of the joule cycle is as follows:

(A) Larger than the Carnot cycle

(B) but Carnot cycle

(C) adequate to the Carnot cycle

(D) None of those



Post a Comment

0 Comments