A. Conversion of heat and mass
B. Reversibility of a process
C. Introduction of concept of entropy
D. Transitivity of thermal equilibrium
Ans-: D
Q.2 Which of the following defined specific fuel consumption?
A. Fuel consumption per hour
B. Fuel consumption per km
C. Fuel consumption per hr per BPH
D. Fuel consumption per BPH
Ans-: C
Q.3 Combustion of gases fuels deals with _____.
A. Dalton's law
B. Avogadro's hypothesis
C. Krichhoff's law
D. Boyle's law
Ans-: B
Q.4 A substance above critical temperature exists as_____.
A. Solid
B. Liguid
C. Vapour
D. Supersaturated fluid
Ans-: D
Q.5 When a vapour condenses into a liquid then ____.
A. It evolves heat
B. It absorbs heat
C. No change in heat
D. Its temperature rises
Ans-: A
Q.6 On which cycle constant pressure gas cycle work ____.
A. Otto cycle
B. Brayton cycle
C. Rankine cycle
D. Dual cycle
Ans-: B
Q.7 Entropy is defined by which law?
A. Gas law
B. First law of thermodynamics
C. Second law of thermodynamics
D. Zeroth law of thermodynamics
Ans-: C
Q.8 Water is a______.
A. Substance
B. Liquid
C. Compound
D. mixture
Ans -: C
Q.9 When the cut off is _______ efficiency of diesel cycle is maximum.
A. Increased
B. Zero
C. Decreased
D. Maximum
Ans-: B
Q.10 Total heat of a substance is also known as ____.
A. Entropy
B. Calorific value
C. Enthalpy
D. Specific heat of substance
Ans-: C
Q.11 Heat is rejected, In a cycle ____.
A. At constant pressures
B. At constant volume
C. At constant temperature
D. At constant Enthalpy
Ans-: A
Q.12 In the barometric reading sudden fall is the sign off approaching ____.
A. Cold wave
B. Rain
C. Strom
D. Fine weather
Ans-: C
Q.13 Unit of universal gas constant is ___.
A. Nm/kg mole °k
B. Nm/ kg
C. Nm/kg °k
D. N/m/ °k
Ans-: A
Q.14 How many value of specific heat solid and liquid have?
A. 1
B. 2
C. 3
D. 5
Ans-: 1
Q.15 In closed system ____.
A. No interchange of matter
B. Only energy cross the boundaries
C. Boundary can move or change position
D. All of these
Ans-: D
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