Which of the following metals/alloys has the maximum thermal coefficient of linear expansion?
A.Chromel
B.Brass (70-30)
C.Nickel
D.Invar
Category: Chemical Engineering Mcqs
For an ideal gas x in the equation PV = xT is a constant which depands upon
A.the number of molecules present only
B.the type of gas only
C.both (a) and (b)
D.neighter (a) nor (b)
At equilibrium
A.the rate of forward reaction is equal to the rate of backward reaction
B.the rate of forward reaction is more than the rate of backward reaction
C.the rate of forward reaction is less than the rate of backward reaction
D.chemical reaction stops
Red phosphorus may be changed to white phosphorus by
A.vapourization followed by condensation
B.heating in the presence of light
C.heating under high pressure
D.melting under pressure
A body which transmits all the radiations falling on it is known as
A.Black body
B.Grey body
C.Transparent body
D.White body
E.None of the above
All heat transfer processes
A.Involve transfer of energy
B.Involve temperature difference between the bodies
C.Obey first law of thermodynamics
D.Obey second law of thermodynamics
E.Obey Newton’s law
The value of disintegration constant (k) of a radioactive isotope
A.decreases with increasing pressure
B.increases with increasing temperature
C.increases with increasing concentration
D.is independent of temperature concentration or pressure
The dew point of an unsaturated mixture of water vapour and air at constant temperature and pressure
A.does not change with change in absolute humidity
B.increases with increase in absolute humidity
C.decreases with increase in absolute humidity
D.decreases linearily with increase in absolute humidity.
Tachometer is used to measure
A.speed
B.pressure
C.composition
D.speed
Stoke (St) is the unit of kinematic viscosity and one stoke is equal to
A.1 m2/s
B.1 ft2/s
C.1 cm2/s
D.1 mm2/s
