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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

Very small pressure difference (< 5 mm water column) can be most conveniently measured by a/an _____________ manometer?
A U-tube water
B U-tube mercury
C Inclined tube mercury
D Inclined tube water
Correct Answer: Inclined tube water
The flow of a liquid through tapering pipe at a constant rate is an example of _______________ flow?
A Steady uniform
B Steady non uniform
C Unsteady uniform
D Unsteady non uniform
Correct Answer: Steady non uniform
The rate of shear versus the shear stress curves are time dependent for _____________ fluid?
A Thixotropic
B Rheopectic
C Both A. & B.
D Neither A. nor B.
Correct Answer: Both A. & B.
The centre of pressure is_________________?
A Always below the centroid of the area
B Always above the centroid of the area
C A point on the line of action of the resultant force
D At the centroid of the submerged area
Correct Answer: A point on the line of action of the resultant force
As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1 ?
A Increases linearly with V
B Decreases linearly with V
C Decreases as V2
D None of these
Correct Answer: Increases linearly with V
The resistance wire used in a hot wire anemometer for conducting electrical current is made of__________________?
A Copper
B Tungsten
C Chromium
D Aluminium
Correct Answer: Tungsten
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke’s law range is proportional to the_____________________?
A Inverse of fluid viscosity
B Square of particle size
C Difference in the densities of the particle & fluid
D All A., B. and C.
Correct Answer: All A., B. and C.
The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a____________________?
A Weir
B Pitot tube
C Kennison nozzle
D V-notch
Correct Answer: Pitot tube
The bulk modulus of elasticity of a liquid__________________?
A Is zero for incompressible liquid
B Decreases with pressure
C Is independent of temperature & pressure
D Increases with pressure
Correct Answer: Increases with pressure
In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas) ?
A 1/√M
B √M
C 1/M
D M
Correct Answer: 1/√M
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