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.

(Le/D) for a Tee (used as elbow, entering run) would be around _______________________?

A 5

B 60

C 160

D 200

Review Detailed Answer

Correct Answer: 60

Bubble cap tray is the most commonly used tray in large distillation column, because______________?

A Of its flexibility and nearly constant efficiency under varying conditions of operation

B It incurs less pressure drop as compared to any other try designed for the same duty

C It eliminates the foaming and entrainment tendency during operation

D None of these

Review Detailed Answer

Correct Answer: Of its flexibility and nearly constant efficiency under varying conditions of operation

Removable connection of tubes to tube sheet is called___________________?

A Ferrule

B Socket

C Nipple

D Saddle

Review Detailed Answer

Correct Answer: Ferrule

In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by ______________ times the hole diameter?

A Two

B Five

C Ten

D Twenty

Review Detailed Answer

Correct Answer: Two

1.2 to 3.8 cms is the value of the ______________________?

A Downcomer liquid seal in case of a balanced tray design

B Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm)

C Skirt clearance for bubble caps

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

The longitudinal stress induced in a thin walled cylindrical vessel under internal pressure is_________________?

A pd/2t

B pd/4t

C pd/t

D pd/8t

Review Detailed Answer

Correct Answer: pd/4t

Scale up problem in design based on the similarity concept takes into account _______________ similarity?

A Geometrical

B Kinematic

C Dynamic

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

For turbulent flow (NRe > 2100) of low viscosity fluid (μ > 20cp) in steel pipes, the optimum inside pipe diameter is given by(where, Q = fluid flow rate, ft3/sec, ρ = fluid density, lb/ft3 μ = fluid viscosity, centipoise Di = optimum inside pipe diameter, inches) ?

A Di, opt = 3.9 Q0.45 ρ0.13

B Di, opt = 3.9 Q0.45. μ0.95

C Di, opt = 4.7 Q0.36. μ3.2ρ0.13

D Di, opt = 3 Q0.36. μ0.88

Review Detailed Answer

Correct Answer: Di, opt = 3.9 Q0.45 ρ0.13

If ‘D’ is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of__________________?

A D/2 or minimum 2″ to 5D

B D/5 or minimum 2″ to 5D

C D/5 or minimum 2″ to D

D None of these

Review Detailed Answer

Correct Answer: D/5 or minimum 2″ to 5D

In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?

A Called tube pitch

B Called tube clearance

C Always less than the diameter of the tube

D None of these

Review Detailed Answer

Correct Answer: Called tube pitch

Showing 8281 to 8290 of 9594 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

(Le/D) for a Tee (used as elbow, entering run) would be around _______________________?

Bubble cap tray is the most commonly used tray in large distillation column, because______________?

Removable connection of tubes to tube sheet is called___________________?

In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by ______________ times the hole diameter?

1.2 to 3.8 cms is the value of the ______________________?

The longitudinal stress induced in a thin walled cylindrical vessel under internal pressure is_________________?

Scale up problem in design based on the similarity concept takes into account _______________ similarity?

For turbulent flow (NRe > 2100) of low viscosity fluid (μ > 20cp) in steel pipes, the optimum inside pipe diameter is given by(where, Q = fluid flow rate, ft3/sec, ρ = fluid density, lb/ft3 μ = fluid viscosity, centipoise Di = optimum inside pipe diameter, inches) ?

If ‘D’ is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of__________________?

In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?