For obtaining a given separation in distillation column the minimum number of theoretical stages is obtained with
A.minimum reflux ratio
B.optimum reflux ratio
C.total reflux
D.zero reflux ratio
Category: Chemical Engineering Mcqs
The flow of current is actually flow of
A.?-particles
B.?-particles
C.? -praticles
D.mesons
Smoking tendency of hydrocarbons of same carbon atoms present in kerosine is minimum for
A.Isoparaffins
B.Paraffins
C.Aromatics
D.Naphthenes
A constant-volume gas thermometer employing helium is used to measure temperatures
A.less than 0?C
B.between 0?C and 100?C
C.greater than 100?C
In case of solids, the heat transfer takes place according to
A.radiation
B.conduction
C.convection
D.Both (A) and (C)
For handling severely scaling liquids which of the following evaporator will be preferred?
A.Horizontal tube type
B.Long vertical tube type
C.Agitated film type
D.Short vertical tube
E.None of the above
Thermocouple in a temperature recorder is an example of
A.primary element
B.secondary element
C.manipulating element
D.functioning element
The mass number of an element is equal to
A.the number of protons in the nucleus
B.the number of neutrons in the nucleus
C.the number of protons and neutrons in the nucleus
D.the difference in the number of protons and neutrons in the nucleus
