Yellow phosphorus is transported under
A.air
B.nitrogen
C.water
D.all of these answers
Category: Chemical Engineering Mcqs
Which of the following temperature measuring devices is widely used measure tube side temperature in a shell and tube heat exchanger?
A.Radiation pyrometer
B.Ordinary mercury-in-glass thermometer
C.Thermocouple
D.Constant-volume helium thermometer
The ratio of the actual vapour pressure to the pressure of saturated vapour at the prevailing dry bulb temperature is known as
A.Specific humidity
B.Vapour humidity
C.Relative humidity
D.Humidity ratio
E.Humidity
An example of a pseudoplastic fluid is
A.gas
B.rubber latex
C.sewage sludge
D.quicksand
Smoke point is an important test for
A.Gasoline
B.High speed diesel oil
C.Kerosine
D.LPG
The most favourable conditions of temperature and pressure for the oxidation of sulphur dioxide to sulphur trioxide are
A.low temperature high pressure
B.low temperature low pressure
C.high temperature high pressure
D.high temperature low pressure
In converting from the poise to lb/ft.hr one multiplies by
A.2.04
B.0.41
C.2.42
D.145.2
Which of the following reactions is undesirable in the catalytic reforming of naphthas?
A.Hydrocracking of paraffins
B.Dehydrogenation of naphthenes
C.Isomerization of naphthenes
D.Cyclization of paraffins
The lower temperature limit for mercury thermometer is
A.0?C
B.0?F
C.? 39?F
D.100?C
E.Absolute zero
