A petrol engine fuel that knocks at a low speed
A.has a high octane rating
B.may not knock at high speed
C.will always knock at high speed
D.will have low fire point
Category: Thermodynamics Mcqs
The number of degrees of freedom in case of diatomic gases is
A.2
B.3
C.4
D.5
E.6
A sterling cycle consists of
A.Two isothermal and two adiabatic processes
B.Two adiabatic and two isentropic processes
C.Two adiabatic and two constant pressure processes
D.Two constant volume and two constant pressure processes
E.Two isothermal and two constant volume processes
The molecular volume of any perfect gas at 600 x 103 N/m3 and 27?C will be
A.2.085 m3/kg mol
B.4.17 m3/kg mol
C.41.7 m3/kg mol
D.85.3 m3/kg mol
E.47.7 m3/kg mol
The slope of constant pressure line on temperature entropy diagram is given by________________?
A.S/T
B.T/S
C.Cp/T
D.T/Cp
E.90?
The general gas equation is_________________?
A.PV = RT
B.PV = mRT
C.PV = (RT)m
D.PVn = constant
E.PV = constant
All of the following are intensive properties EXCEPT:
A.Mass
B.Density
C.Viscosity
D.Temperature
The area of pv diagram for a Carnot cycle represents
A.Work done
B.Temperature drop
C.Enthalpy drop
D.Total heat supplied
E.Volume and pressure ratios.
