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.

Slugging in a fluidised bed can be avoided by using_____________________?
A Tall narrow vessel
B Deep bed of solids
C Shallow beds of solids and proper choice of particle size
D Very large particles
Correct Answer: Shallow beds of solids and proper choice of particle size
Friction produced by the formation of wakes is called the ______________ friction?
A Disk
B Skin
C Form
D None of these
Correct Answer: Form
Reynolds number is the ratio of____________________?
A Viscous forces to gravity forces
B Inertial forces to viscous forces
C Viscous forces to inertial forces
D Inertial forces to gravity forces
Correct Answer: Inertial forces to viscous forces
Cd for the orifice plate varies from ___________________?
A 0.58 to 0.8
B 0.93 to 0.98
C 0.2 to 0.3
D 0.02 to 0.03
Correct Answer: 0.58 to 0.8
What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water interface? The balloon is of radius 0.1 m and is filled with air ?
A 4πg/3
B 0.01 πgH/4
C 0.01 πgH/8
D 0.04 πgH/3
Correct Answer: 4πg/3
Which of the following factors does not contribute to the pressure drop in a pipeline ?
A Velocity of fluid
B Size of pipe
C Length of pipe and number of bends
D None of these
Correct Answer: None of these
Experimental study of laminar fluid flow through a circular tube was conducted by____________________?
A Reynolds
B Hagen and Poiseuille
C Pascal
D Blake-Plummer
Correct Answer: Hagen and Poiseuille
Cocks are used to control ___________________?
A Water
B Any liquid
C Solids
D None of these
Correct Answer: Any liquid
Hydraulic radius is the ratio of ____________________?
A Wetted perimeter to flow area
B Flow area to wetted perimeter
C Flow area to square of wetted perimeter
D Square root of flow area to wetted perimeter
Correct Answer: Flow area to wetted perimeter
The most important factor, which determines the maximum height to which water can be lifted by a pump at standard temperature is the_____________________?
A Barometric pressure
B Speed of the impeller
C Diameter of the impeller
D Both B. and C.
Correct Answer: Barometric pressure