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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

The capacity of a belt conveyor depends upon two factors. If one is the cross-section of the load, the other is the _____________ of the belt?
A Speed
B Thickness
C Length
D None of these
Correct Answer: Speed
Size reduction does not occur due to compression in case of________________?
A Rod mills
B Gyratory crushers
C Jaw crushers
D Smooth roll crushers
Correct Answer: Rod mills
Mass flow of granular solid (M) through a circular opening of dia, D follows_____________________?
A M ∝ √D
B M ∝ D2
C M ∝ D3
D M ∝ D
Correct Answer: M ∝ D3
A pebble mill_________________?
A Is a ball mill
B Employs flints or ceramic pebbles as the grinding medium
C Is a tube mill lined with ceramic or other non-metallic liner
D Both B. and C.
Correct Answer: Both B. and C.
In a mixer, the quantity, (v. L/D) is termed as __________ number (where, v = longitudinal velocity of material, L = length of the mixer, D = diffusivity in axial mixing) ?
A Weber
B Peclet
C Brinkman
D Schmidt
Correct Answer: Peclet
Pick out the wrong statement ?
A Magnetic separation method can be employed to treat both dry & wet ores
B Reduction ratio in crushing operation is defined as the ratio of minimum feed size to the
C Gyratory crusher is used for coarse crushing
D Screens are of stationary, moving and vibratory types
Correct Answer: Reduction ratio in crushing operation is defined as the ratio of minimum feed size to the
Pick out the wrong statement?
A Cumulative analysis for determining surface area is preferred over differential analysis,
B A gate diagram is a plot of cumulative percent by weight undersize vs. the reciprocal of
C Capacity of crusher in choke feeding is increased
D Rolling of pebbles/balls from top to bottom of the heap in tumbling mills is called ‘cascading
Correct Answer: Capacity of crusher in choke feeding is increased
Pick out the wrong statement ?
A For the compressible cake, voidage & the specific resistance of the cake can be assumed to be
B Cake resistance is independent of the pressure drop
C Crushing of explosive materials are done by employing dry-grinding
D Gyratory crusher is a coarse crusher
Correct Answer: Cake resistance is independent of the pressure drop
Pick out the wrong statement pertaining to the turbine agitator ?
A Recommended peripheral speed for the turbine agitator is 200-250 metres/minute
B Pitched blade turbine agitator gives only radial flow with complete absence of the axial flow
C Generally, the diameter of the agitator is kept between l/3rd to l/6th of the tank diameter while
D Turbine agitator should be located at a height not less than one agitator diameter length from
Correct Answer: Pitched blade turbine agitator gives only radial flow with complete absence of the axial flow
Pick out the correct statement?
A Angle of repose is always greater than the angle of slide
B A hopper is a small bin with a sloping bottom
C A silo is a short height vessel of very large diameter used for the storage of high volatile
D Pine oil is used as a ‘modifying agent’ (for activating or depressing the adsorption of filming
Correct Answer: A hopper is a small bin with a sloping bottom
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