Which of the following cycle consists of two constant pressure and two adiabatic processes?
A.Carnot cycle
B.Joule cycle
C.Dual cycle
D.Diesel cycle
E.Otto cycle
Category: Thermodynamics Mcqs
Identify the correct statement
A.All materials undergo plastic deformation
B.A completely brittle material would not fracture at elastic limit
C.Brittleness is an important engineering consideration, because it allows the materials to redistribute localized stresses
D.In elastic materials yield stress and tensile strength are practically identical
E.A metal which is brittle in tension may be ductile under hydrostatic compression
During constant pressure heating of a gas the following does not increase?
A.Temperature
B.Entropy
C.Volume
D.Pressure
COP of the engine is
A.2.33
B.3.33
C.4.33
D.5.33
In a reversible cycle, the entropy of the system
A.Increases
B.Decreases
C.Does not change
D.First increases and then decreases
E.Depends on the properties of working substance
Which of the following relation does not hold good for a throttling process?
A.dW = 0
B.dQ = 0
C.dH = 0
D.dS = 0
The function of a clutch in automobiles
A.To disengage power from engine to flywheel
B.To disengage power from engine to gear box
C.To disengage power from engine to wheels
D.To disengage power from wheels to engine
E.To absorb power
The statement that molecular weight of all gases occupy the same volume at NTP is known as
A.Dalton’s law
B.Avogadro’s law
C.First law of thermodynamics
D.Joules law
E.Charle’s law
Which of the following changes during throttling process?
A.Pressure
B.Temperature
C.Internal energy
D.Pressure x Volume
E.All of the above
The internal energy of an ideal gas is
A.A function of temperature alone
B.A function of pressure
C.A function of volume
D.(a) and (b) only
E.All the above
