The temperature inside a furnace is generally measured by
A.Mercury thermometer
B.Alcohol thermometer
C.Gas thermometer
D.Optical pyrometer
E.Any of the above
Category: Chemical Engineering Mcqs
For pure air at atmospheric conditions the Lewis number is
A.<<1
B.>>1
C.?
D.?
Which of the following products contains maximum sulphur?
A.LPG
B.ATF
C.LDO
D.Furance oil
A liquid is boiling in a a air tight vessel. Using an exhaust tube, the vapour is pumped out at a faster rate. What happens to the liquid?
A.Temperature goes down, doiling continues
B.Temperature goes up, boiling continues
C.Temperature goes down, boiling stops
D.Temperature goes up, boiling stops
E.Nothing changes
At steady-state the partial pressure distribution of an ideal gas A diffusing through a stagnant ideal gas B follows
A.linear law
B.hyperbolic law
C.parabolic law
D.exponential law
The permeability increases with increase in temperature for the flow of gases through a capillary according to
A.Knudsen law
B.Poiseuilles law
C.both Knudsen law and Poiseuilles law
D.none of the above
The general formula of mercaptans is
A.R-S-R
B.R-S-R
C.R-S-H
D.R-SOOH
Select the false statement
A.A definite fraction of a radioactive substance disintegrates in a definite time
B.The half-life time is independent of initial concentration of substance
C.Radioactive disintegration constant is independent of temperature
D.If the half-life time is 1580 years the complete disintegration will take place in 3160 years.
The bi-metallic catalysts used in the catalytic reforming of naphthas permit aromatics crerating reactions to occur with a minimum of hydrocracking of paraffins and naphthenes. The bi-metallic catalysts contain
A.platinum and nickel
B.nickel and vanadium
C.platinum and rhenium
D.rhenium and rhodium
A 2.0 kg object weights 1.9 kgf on a spring balance. The value of g at this location. In m/s2 is
A.9.806
B.9.316
C.10.322
D.0.95
