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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 fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for ______________ fluid?
A Newtonian
B Dilatant
C Pseudo-plastic
D
Correct Answer: Newtonian
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
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