M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be ______________ gm?

A 0.5
B 1
C 3
D 5
Correct Answer: 0.5

Boiling point of a solution as compared to that of the corresponding solvent is _________________?

A Less
B More
C Same
D Either more or less; depends upon the solvent
Correct Answer: More

Number of gm moles of solute dissolved in 1 kg of solvent is called its___________________?

A Normality
B Molarity
C Molality
D Formality
Correct Answer: Molality

Assuming that CO2 obeys perfect gas law, calculate the density of CO2 (in kg/m3) at 263°C and 2 atm ?

A 1
B 2
C 3
D 4
Correct Answer: 2

1 Pascal (unit of pressure) is equal to _______________ N/m2 ?

A 10
B 1
C 0.1
D 1000
Correct Answer: 1

Pick out the wrong unit conversion of mass transfer co-efficient?

A 1 lb/hr.ft3.atm. = 4.8182 kg/hr.m2.bar
B 1 kg/hr.m2.atm= 0.98687 kg/hr. m .bar
C 1 lb/hr.ft2 = 4.8823 kg/hr.m2
D 1 kg/hr.m2 = 4.8823 lb/hr.ft2
Correct Answer: 1 kg/hr.m2 = 4.8823 lb/hr.ft2

Heat of solution in a system in which both solute and solvent are liquids is termed as_________________?

A Heat of solvation
B Heat of hydration
C Standard integral heat of solution
D Heat of mixing
Correct Answer: Heat of mixing

The vapor pressure of liquids of similar chemical nature at any particular temperature _______________ with increase in the molecular weight?

A Increases
B Decreases
C Remains unchanged
D Either A. or B.; depends on the liquid
Correct Answer: Decreases

A chemical process is said to occur under unsteady state, if the_________________?

A Inventory changes do not take place
B Ratio of streams entering/leaving are independent of time
C Flow rates & composition both are time dependent
D None of these
Correct Answer: Flow rates & composition both are time dependent

N.T.P. corresponds to__________________?

A 1 atm absolute pressure & 0°C
B 760 mm Hg gauge pressure & 0°C
C 760 torr & 15°C
D 101.325 KPa gauge pressure & 0°C
Correct Answer: 1 atm absolute pressure & 0°C