In a cooling tower which mode of heat transfer plays insignificant role?
A.Evaporative cooling
B.Convective cooling
C.Radiaion
D.All of the above
Category: Chemical Engineering Mcqs
A constant-volume gas thermometer employing hydrogen gas is used to measure the temperatures
A.less than 0?C
B.between 0?C and 100?C
C.greater than 100?C
In the question 109 the holding time is
A.sec
B.sec
C.1 sec
D.2 sec.
The net heat of combustion of the hydrocarbon fuels is
A.equal to the gross heat of combustion of the hydrocarbon fuels
B.greater than the gross heat of combustion of the hydrocarbon fuels
C.equal to the gross heat of combustion minus the latent heat of condensation of the water formed during the combustion reaction
D.equal to the latent heat of condensation of the water formed during the combustion reaction.
The force holding the particles inside a nucleus is
A.an electrostatic force
B.a gravitational force
C.an exchange force
D.a magnetic force
An imbalanced equation is against the
A.law of gaseous volumes
B.law of constant proportions
C.law of conservation of mass
D.law of multiple proportions
Which one is the most dangerous gas?
A.Hydrogen
B.Methane
C.Ethane
D.Butane
Sulphur is produced by oxidation-reduction of H2S. The catalyst used in this process is
A.V2O5
B.AI2O3
C.Pt
D.Ni
The number of molecules present in 1 g mol of a gas is known as
A.atomic number
B.vapour density
C.Avogadro number
D.none of the above
The equation E = ? AT4 represents
A.Wein’s Law
B.Kirchhoff’s law
C.Stefan Boltzmann’s law
D.None of the above
