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.

Vane anemometer __________________?
A Is an area meter
B Is a variable head meter
C Rotates an element at a speed determined by the velocity of the fluid in which the meter is
D None of these
Correct Answer: Rotates an element at a speed determined by the velocity of the fluid in which the meter is
Diaphragm valves are used for handling _______________ fluids?
A Corrosive
B Viscous
C Non-Newtonian
D Solid suspended
Correct Answer: Corrosive
Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is _____________ mm?
A 4
B
C > 12.5
D < 10
Correct Answer: > 12.5
Which of the following conditions must be satisfied for lift force to be developed ?
A The body should be bluff body
B The body should be stream lined
C Circulation around the body is essentially required
D The main stream velocity must approach the velocity of sound in that fluid medium
Correct Answer: Circulation around the body is essentially required
Boundary layer separation is caused by the ____________________?
A Reduction of pressure below vapour pressure
B Reduction of pressure gradient to zero
C Adverse pressure gradient
D Reduction of boundary layer thickness to zero
Correct Answer: Adverse pressure gradient
A floating/submerged body is always stable, if its centre of gravity___________________?
A Lies above its centre of buoyancy
B And centre of buoyancy coincide
C Lies below its centre of buoyancy
D Lies above its metacentre
Correct Answer: Lies below its centre of buoyancy
Which of the following is dimensionless ?
A Angular velocity
B Fanning friction factor
C Specific volume
D None of these
Correct Answer: Fanning friction factor
A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 × 103 VOM + 10.94 × 106 V2 OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is_________________?
A 12 mm/s
B 16 mm/s
C 24 mm/s
D 28 mm/s
Correct Answer: 16 mm/s
Non-colloidal solution is an example of the _______________ fluid?
A Non-Newtonian
B Newtonian
C Dilatent
D Pseudo-plastic
Correct Answer: Newtonian
One dimensional flow implies________________________?
A Flow in a straight line
B Steady uniform flow
C Unsteady uniform flow
D A flow which does not account for changes in transverse direction
Correct Answer: A flow which does not account for changes in transverse direction