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. Carnot cycle
efficiency is maximized when:
(A) The initial temperature is 0 ° K
(B) the ultimate temperature is 0 ° K
(C) The difference between the initial temperature and therefore the final temperature is 0 ° K.
(D) the ultimate temperature is 0 ° C
2. If heat is
exchanged reversibly, which of the subsequent properties of the agonist will
change accordingly?
(temperature
(B) Enthalpy
(C) Internal energy
(D) Entropy
3. the world under
the temperature-entropy curve (T – s curve) of the thermodynamic process is
(A) Absorbed heat
(B) The fever was rejected
(C) Either heat absorption or heat removal
(D) None of those
4. 1 kg of carbon
produces ________ kg of CO2 .
(A) 3/7
(B) 11/7
(C) 11/3
(D) 4/11
5. If the system
returns to its initial state after browsing a series of processes
(A) the method is thermodynamically in equilibrium
(B) the method runs during a closed system cycle
(C) Its entropy changes thanks to irreversibility
(D) The sum of warmth and work transfer is
going to be zero
6. the particular
engine should be designed with an equivalent efficiency because of the Carnot
cycle. Such a proposition
(A) Executable
(B) Impossible
(C) Possible
(D) Yes, but sophisticated
7. The manufacturer
claims to possess an engine that will generate 20 horsepower. By receiving heat
input of 400 kcal / mt and dealing
between temperature limits of 227 ° C and 27 ° C. His claim is
(A) Theoretically possible
(B) Impossible
(C) Many sophisticated things could also be possible
(D) the value is going to be very high
8. Which of the
subsequent is that the correct description of the second law of thermodynamics?
(A) there's a particular amount of energy that will be obtained from a given amount of thermal energy
(B) it's impossible to transfer heat from a chilly object to a hot object without the assistance of an external source.
(C) it is impossible to create an engine that operates during a cyclic process whose purpose is to convert thermal energy to work.
(D) All of the above
9. The gas mixture
expands from 0.03m3 to 0.06m3 at continuous pressure of 1MPa & absorbs 84kJ
of warmth during this method. Changes
within the internal energy of the mixture are:
(A) 30 kJ
(B) 84 kJ
(C) 54 kJ
(D) 114 kJ
10. within the Carnot
cycle, heat is transferred to:
(A) Constant pressure
(B) Fixed amount
(C) Constant temperature
(D) Constant enthalpy
11. Insulated wall
(A) Prevents thermal interaction
(B) Allows thermal interaction
(C) Promotes thermal interaction
(D) Prevent thermal interactions
12. what's a heat-insulating wall?
(A) Prevents thermal interaction
(B) Allows thermal interaction
(C) Promotes thermal interaction
(D) Prevent thermal interactions
13. air gas
(A) Carbonization of soft coal
(B) Partial combustion of coal, coke, anthracite, or charcoal during a phreatic eruption
(C) Pass steam through incandescent coke
(D) Pass air and an outsized amount of steam through the waste coal at about 650 ° C.
14. what's the
efficiency of the diesel cycle?
(A) Pressure ratio
(B) Cut-off ratio and compression ratio
(C) Temperature limit
(D) Compression ratio
15. The door of the
working refrigerator within the room remained open. Which of the subsequent
explanations is correct?
(A) the space is cooled to the temperature inside the refrigerator.
(B) the space is extremely slightly cooled
(C) the space gradually warms up
(D) The temperature of the indoor air isn't affected
16. The gas constant
(R) is equal to the two specific heats __________.
(A) Product
(B) Total
(C) Difference
(D) Ratio
17. A sudden drop in
barometer readings is a sign of approach.
(A) Fine weather
(B) Rain
(C) Storm
(D) Cold wave
18. Universal Gas
Constant unit is?
(A) Watt / ° K
(B) Dyne / ° C
(C) Erg / ° K
(D) Neither of the above
19. Calories are a
measure of
(A) Specific heat
(B) Calorie
(C) Heat capacity
(D) Entropy
20. 1kgf / cm² is
equal
(A) 760 mm Hg
(B) Zero mm Hg
(C) 735.6 mm Hg
(D) 1 mm Hg
21. Isothermal
process
(A) There is no change in enthalpy
(B) There is no change in internal energy
(C) No temperature change
(D) All of these
22. Kelvin-Plank's
law
(A) Saving work
(B) Heat storage
(C) Conversion of work to heat
(D) Conversion of heat to work
23. Atmospheric
pressure is equal to
(A) 760 mm Hg
(B) Zero mm Hg
(C) 735.6 mm Hg
(D) 1 mm Hg
24. In the Otto
cycle, the Otto cycle efficiency is higher than the diesel cycle efficiency at
the same compression ratio and heat
input.
(A) Low heat exhaust rate
(B) Expansion and compression are isentropic
(C) Combustion is a constant amount
(D) High maximum temperature
25. The values of
the gas constant (R) of the S.I. unit system are as follows.
(A) 0.287 J / kgK
(B) 2.87 J / kgK
(C) 28.7 J / kgK
(D) 287 J / kgK
26.1 atm or 1 atm is
equal to
(A) 1kgf / cm²
(B) 1.033kgf / cm²
(C) 0kgf / cm²
(D) 1.0197kgf / cm²
27. The first law of
thermodynamics is
(A) Conservation of mass
(B) Energy conservation
(C) Preservation of momentum
(D) Heat storage
28. Perpetual motion
(A) Thermodynamic machine
(B) Non-thermodynamic machine
(C) Fictitious machine
(D) A fictitious machine whose
operation violates the laws of thermodynamics
29. Kelvin Planck's
law
(A) Preservation of heat
(B) Saving work
(C) Conversion of heat to work
(D) Conversion of work to heat
30. The pressure
exerted by an ideal gas is the ________ of the kinetic energy of all molecules
contained in a unit volume of gas.
(A) One-third
(B) Three-quarters
(C) Half
(D) Two-thirds
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