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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.

All Topics  9594

(Le/D) for a Tee (used as elbow, entering branch) would be ____________________?
A Less than that for Tee (used as elbow, entering run)
B More than that for Tee (used as elbow, entering run)
C Around 90
D Both B. and C.
Correct Answer: Both B. and C.
Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the_____________________?
A Sensible heat differences are small, because the temperature changes from tray to tray is small
B Trouton’s rule is applicable
C Liquid/vapor loading across the column remains constant
D All A., B. and C.
Correct Answer: All A., B. and C.
Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around _________________?
A 2.5″
B 0.5″
C 5″
D 50% of the plate spacing
Correct Answer: 0.5″
Which of the following types of reactors is the safest from operation point of view ?
A A vapor phase reactor
B Pot type reactor
C A liquid phase reactor
D A liquid phase catalytic reactor
Correct Answer: A vapor phase reactor
The distance between the centres of a rivet hole to the nearest edge of the plate is called _________________?
A Pitch
B Margin
C Back pitch
D None of these
Correct Answer: Margin
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to ____________________?
A 0.5 d
B d
C 1.5 d
D 2.5 d
Correct Answer: d
When one of the fluids is highly corrosive and has fouling tendency, it should_____________________?
A Preferably flow inside the tube for its easier internal cleaning
B Preferably flow outside the tube
C Flow at a very slow velocity
D Flow outside the tube, when the flow is counter-current and inside the tube when the flow is
Correct Answer: Preferably flow inside the tube for its easier internal cleaning
In a bag filter, the pressure drop increases directly as the___________________?
A Density of the gas, but is independent of the viscosity of the gas
B Density of the gas and inversely as viscosity of the gas
C Viscosity of the gas and inversely as density of the gas
D None of these
Correct Answer: Density of the gas and inversely as viscosity of the gas
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones; because the smaller diameter tubes ______________?
A Are easier to clean
B Are less prone to fouling
C Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less
D None of these
Correct Answer: Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less
In a vertical short tube evaporator (Calandria type), the ______________________?
A Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylindrical drum dia of 1-6 metres are
B Area of central downtake is equal to 40 to 100% of total cross-sectional area of the
C Liquor is inside the tube while the steam is outside the tube
D All A., B. & C.
Correct Answer: All A., B. & C.
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