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.

_____________ dished head is the strongest of all?

A Hemispherical
B Elliptical
C Torispherical
D None of these
Correct Answer: Hemispherical

In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for______________?

A Reducing scale deposition
B Increasing pressure drop
C Fixing the tubes
D Creating turbulence
Correct Answer: Creating turbulence

The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally _____________ the tube wall thickness?

A Equal to
B Twice
C Four times
D Half
Correct Answer: Twice

LMTD correction factor is used in heat exchanger design for____________________?

A Double pipe heat exchanger
B Multipass shell and tube heat exchanger
C Fouling fluids
D Counter flow of hot and cold fluids
Correct Answer: Counter flow of hot and cold fluids

A binary liquid Azeotropic mixture has boiling point higher than either of the components, when it shows ______________ deviation from Raoult’s Law?

A Positive
B Negative
C No
D None of these
Correct Answer: Negative

Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate ?

A Triangular pitch
B Square pitch
C Diagonal square pitch
D Heat transfer rate is independent of tube arrangement
Correct Answer: Triangular pitch

Cooling water fouling factors vary in the range of 0.001 to 0.003____________________?

A (BTU/hr.ft2. °F)-1
B (kcal/hr.m2.°C)-1
C (W/m2.°K)-1
D (kcal/hr. m. °C)-1
Correct Answer: (BTU/hr.ft2. °F)-1

The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is_________________?

A < 30
B < 7
C > 7 20 < 50
D
Correct Answer: < 7

For identical situation, condensing film coefficient in case of a horizontal condenser is almost ______________ the value expected in case of vertical condenser?

A Half
B Twice
C Thrice
D Five times
Correct Answer: Thrice

Length to diameter ratio of most rotary driers is in the range of____________________?

A 1 to 2
B 4 to 10
C 10 to 20
D 20 to 30
Correct Answer: 4 to 10