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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

Glass pipes can be joined by__________________?
A Flanges
B Welding
C Soldering
D Bell and spigot joint
Correct Answer: Bell and spigot joint
The percentage slip in a reciprocating pump set is given by the % of (where, Q1 = actual discharge Q2 = theoretical discharge) ?
A Q1/Q2
B Q2/Q1
C (Q2 – Q1)/Q1
D (Q2 – Q1)/Q2
Correct Answer: (Q2 – Q1)/Q2
Scale up of agitator design requires________________?
A Geometrical similarity only
B Dynamic similarity only
C Both geometrical and dynamic similarity
D All geometrical, dynamic and kinematic similarity
Correct Answer: All geometrical, dynamic and kinematic similarity
The velocity for subsonic flow in a pipeline_______________?
A Increases in the downstream direction
B Is constant
C Decreases in the downstream direction
D Is independent of the area of flow
Correct Answer: Increases in the downstream direction
For steady ideal fluid flow, the Bernoulli’s equation states that the_________________?
A Velocity is constant along a stream line
B Energy is constant throughout the fluid
C Energy is constant along a stream line, but may vary across stream lines
D None of these
Correct Answer: Energy is constant along a stream line, but may vary across stream lines
Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton’s law of viscosity. (II) Newton’s second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary?
A I, II, III
B II, III, V
C I, II, V
D II, IV, V
Correct Answer: II, III, V
Purpose of air lift pump is to____________________?
A Compress air
B Lift compressed air
C Lift water from a well by using compressed air
D Lift air under negative pressure
Correct Answer: Lift water from a well by using compressed air
A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now_________________?
A Increase
B Decrease
C Remain same
D Data insufficient to predict
Correct Answer: Decrease
Select the correct practical example of steady non-uniform flow?
A Motion of water around a ship in a lake
B Motion of river around bridge piers
C Steadily decreasing flow through a reducing section
D Steadily increasing flow through a pipe
Correct Answer: Steadily decreasing flow through a reducing section
Pressure co-efficient is the ratio of pressure forces to __________________________ forces?
A Gravity
B Inertial
C Viscous
D None of these
Correct Answer: Inertial
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