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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

The effect of solid boundary on the fluid flow is confined to the boundary layer, except for fluids ?

A Having high viscosities

B Moving at low velocities

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

Potential function is applicable only for __________ flow?

A Irrotational

B Turbulent

C Steady

D None of these

Review Detailed Answer

Correct Answer: Irrotational

Colebrook equation for friction factor in turbulent flow is given by, f-0.5 = -4 loge [(ε/D) + (1.26/NRe √F). It reduces to Nikuradse equation for a value of (ϵ/D) equal to __________________?

A 0

B 1

C ∞

D 0.5

Review Detailed Answer

Correct Answer: 1

Which of the following flow measuring devices is an area meter ?

A Venturimeter

B Orificemeter

C Anemometer

D Rotameter

Review Detailed Answer

Correct Answer: Rotameter

Which of the following equations applies to the fluid flow through a packed bed for very large Reynolds number ?

A Fanning equation

B Blake-Plummer equation

C Hagen-Poiseuille equation

D Kozeny-Carman equation

Review Detailed Answer

Correct Answer: Blake-Plummer equation

The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the ?

A Length is shorter

B Throat diameter is more

C Sudden expansion of flow in the downstream occurs

D Distance between the throat and the inlet is more

Review Detailed Answer

Correct Answer: Sudden expansion of flow in the downstream occurs

The valve commonly used in pipes larger than 2″ dia is a______________?

A Globe valve

B Plug-cock

C Gate valve

D Check valve

Review Detailed Answer

Correct Answer: Gate valve

The ratio of maximum to average velocity in case of streamline flow between parallel plates is______________________?

A 1

B 1.5

C 2

D 2.5

Review Detailed Answer

Correct Answer: 1

At what value of crank angle (roughly), no flow of water from or into the air vessel takes place in case of a double acting reciprocating pump ?

A 40° and 140°

B 45° and 60°

C 90° and 80°

D 20° and 120°

Review Detailed Answer

Correct Answer: 40° and 140°

For the same terminal conditions and fitting size, the least friction loss is incurred in a/an ?

A T-joint

B Union

C 45° elbow

D 90°bend

Review Detailed Answer

Correct Answer: Union

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The effect of solid boundary on the fluid flow is confined to the boundary layer, except for fluids ?

Potential function is applicable only for __________ flow?

Colebrook equation for friction factor in turbulent flow is given by, f-0.5 = -4 loge [(ε/D) + (1.26/NRe √F). It reduces to Nikuradse equation for a value of (ϵ/D) equal to __________________?

Which of the following flow measuring devices is an area meter ?

Which of the following equations applies to the fluid flow through a packed bed for very large Reynolds number ?

The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the ?

The valve commonly used in pipes larger than 2″ dia is a______________?

The ratio of maximum to average velocity in case of streamline flow between parallel plates is______________________?

At what value of crank angle (roughly), no flow of water from or into the air vessel takes place in case of a double acting reciprocating pump ?

For the same terminal conditions and fitting size, the least friction loss is incurred in a/an ?