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.

Steady state one dimensional heat flow by conduction as given by Fourier’s low does not assume that_______________?

A There is no internal heat generation

B Boundary surfaces are isothermal

C Material is anisotropic

D Constant temperature gradient exists

Review Detailed Answer

Correct Answer: Material is anisotropic

Heat transfer co-efficient (h1) for liquids increases with__________________?

A Increasing temperature

B Decreasing temperature

C Decreasing Reynolds number

D None of these

Review Detailed Answer

Correct Answer: Increasing temperature

Multiple effect evaporators ar used to___________________?

A Increase the steam economy & decrease the capacity

B Increase the steam economy & the capacity

C Decrease the steam economy & the capacity

D Decrease the steam economy & increase the capacity

Review Detailed Answer

Correct Answer: Increase the steam economy & the capacity

In natural convection heat transfer, the correlating parameter is the_______________________?

A Graetz number

B Eckert number

C Grashoff number

D Bond number

Review Detailed Answer

Correct Answer: Grashoff number

Correction is applied to LMTD for __________ flow?

A Parallel

B Counter

C Cross

D None of these

Review Detailed Answer

Correct Answer: Cross

Increasing the liquor level in the evaporator results in the_______________?

A Decreased capacity

B Increase in liquor film co-efficient

C Decreased effect of hydrostatic head

D Increased true temperature drop

Review Detailed Answer

Correct Answer: Decreased capacity

In case of a shell and tube heat exchanger, the minimum and maximum baffle spacing is respectively (where, D = inside diameter of the shell) ?

A D/5 and D

B D/2 and 2 D

C D/4 and 2 D

D D and 2 D

Review Detailed Answer

Correct Answer: D/5 and D

Double pipe heat exchangers are used__________________?

A When heat transfer area required is very high

B When heat transfer area required is very low, i.e. (100-200 ft2).

C Because it occupies less floor area

D Because it is less costly

Review Detailed Answer

Correct Answer: When heat transfer area required is very low, i.e. (100-200 ft2).

A body is called grey if the monochromatic emissivity of the body is___________________?

A Zero

B Unity

C Same for all wavelengths

D Different for all wavelengths

Review Detailed Answer

Correct Answer: Same for all wavelengths

While the total emissivity of a perfect black body is unity, the same for a real body is__________________?

A 0

B 1

C > 1

D Between 0 and 1

Review Detailed Answer

Correct Answer: 0

Showing 321 to 330 of 510 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Steady state one dimensional heat flow by conduction as given by Fourier’s low does not assume that_______________?

Heat transfer co-efficient (h1) for liquids increases with__________________?

Multiple effect evaporators ar used to___________________?

In natural convection heat transfer, the correlating parameter is the_______________________?

Correction is applied to LMTD for __________ flow?

Increasing the liquor level in the evaporator results in the_______________?

In case of a shell and tube heat exchanger, the minimum and maximum baffle spacing is respectively (where, D = inside diameter of the shell) ?

Double pipe heat exchangers are used__________________?

A body is called grey if the monochromatic emissivity of the body is___________________?

While the total emissivity of a perfect black body is unity, the same for a real body is__________________?