MCQsDrive | MCQsDrive

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.

Factor of safety (i.e., overdesign factor) in heat transfer equipments is about _____________ percent more than the actual/theoretical design factor?

A 5-10

B 15-20

C 30-35

D 35-40

Review Detailed Answer

Correct Answer: 15-20

The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the _____________ stress?

A Yield point

B Breaking

C Ultimate

D None of these

Review Detailed Answer

Correct Answer: Ultimate

For a 25 mm hole drilled in plates to be riveted, the shank diameter of the rivet should be _______________ mm?

A 25

B 23

C 26

D 27

Review Detailed Answer

Correct Answer: 23

In case of a ‘thin’ pressure vessel, the ratio of its diameter to wall thickness is_________________?

A < 10

B > 10

C > 20

D 30

Review Detailed Answer

Correct Answer: > 10

Value of Peclet number = 0, is the representative of ____________________?

A Laminar flow

B Complete back mixing

C Plug flow

D Eddy diffusivity = 0

Review Detailed Answer

Correct Answer: Complete back mixing

Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effects in evaporation ?

A Increases capacity

B Increases economy

C Does not affect the capacity

D Both B. & C.

Review Detailed Answer

Correct Answer: Both B. & C.

Value of Peclet number = ∞, is the representative of___________________?

A Laminar flow

B Complete back mixing

C Plug flow

D Eddy diffusivity = 0

Review Detailed Answer

Correct Answer: Plug flow

Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle ?

A Segmental baffle

B Flat plate extending across the wall

C Disk type baffle

D Helical type baffle

Review Detailed Answer

Correct Answer: Flat plate extending across the wall

The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the _______________ stress?

A Working

B Damaging

C Allowable

D None of these

Review Detailed Answer

Correct Answer: Damaging

At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally ?

A Higher

B Lower

C Same

D Unpredictable

Review Detailed Answer

Correct Answer: Lower

Showing 8271 to 8280 of 9594 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Factor of safety (i.e., overdesign factor) in heat transfer equipments is about _____________ percent more than the actual/theoretical design factor?

The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the _____________ stress?

For a 25 mm hole drilled in plates to be riveted, the shank diameter of the rivet should be _______________ mm?

In case of a ‘thin’ pressure vessel, the ratio of its diameter to wall thickness is_________________?

Value of Peclet number = 0, is the representative of ____________________?

Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effects in evaporation ?

Value of Peclet number = ∞, is the representative of___________________?

Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle ?

The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the _______________ stress?

At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally ?