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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

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
For flow through a venturi at a particular discharge, the correct relationships among velocities at point X, Y and Z would be __________________?
A V1 < V2 < V3
B V2 > V1 and V2 > V3
C V1 > V2 > V3
D None of these
Correct Answer: V2 > V1 and V2 > V3
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