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.

Capacity of a rotary gear pump can be varied by__________________?

A Changing the speed of rotation
B Bleeding air into suction
C Bypassing liquid from the suction or discharge line
D All A., B. and C.
Correct Answer: All A., B. and C.

The vent valve provided in a liquid handling centrifugal pump is___________________?

A Generally a needle valve
B Used to release any gases that might be vapour locking the pump
C Helpful in easy removal of samples
D All A., B. and C.
Correct Answer: All A., B. and C.

Paper pulp is an example of _____________ fluid?

A Dilatant
B Bingham plastic
C Newtonian
D Pseudo-plastic
Correct Answer: Bingham plastic

Drag is the force component exerted on an immersed object, ?

A Passing the centroid of the body at 60°to the direction of motion
B The component being parallel to the flow direction
C The component being normal to the flow direction
D None of these
Correct Answer: The component being parallel to the flow direction

The most serious disadvantage of an orificemeter is that________________?

A It is not very accurate
B It is very costly
C Most of the pressure drop is not recoverable
D It is not suitable for measuring gas flow
Correct Answer: Most of the pressure drop is not recoverable

Boundary layer exists in flow_________________?

A Of real fluids
B Over flat surfaces only
C In pipes only
D Of ideal fluids only
Correct Answer: Of real fluids

The capillary rise of mercury is maximum in glass tube of dia _____________ mm?

A 0.5
B 1
C 2
D 5
Correct Answer: 0.5

Laminar flow is characterised by the nonexistence of_________________?

A Pressure fluctuation
B Eddies
C Deviating velocities
D All A., B. & C.
Correct Answer: All A., B. & C.

The maximum depth from which a centrifugal pump can draw water is________________?

A Dependent on the speed of the pump
B Dependent on the power of the pump
C 34 feet
D 150 feet
Correct Answer: 34 feet

The pressure and power requirement of a gas fan at constant speed & capacity varies ____________ the gas density?

A Directly as
B Inversely as square root of
C Inversely as
D As square of
Correct Answer: Directly as