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.

A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter ‘d’. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to_____________________?

A d0.8

B d-0.2

C d-1

D d-1.8

Review Detailed Answer

Correct Answer: d-0.2

Heat transfer co-efficient (h) for a fluid flowing inside a clean pipe is given by h = 0.023 (K/D) (DVρ/μ)0.8 (CP.μ/k)0.4. This is valid for the value of NRe equal to_______________?

A 4000

D > 10000

Review Detailed Answer

Correct Answer: > 10000

The ratio of kinematic viscosity to thermal diffusivity is called the _______________ number?

A Peclet

B Prandtl

C Stanton

D Nusselt

Review Detailed Answer

Correct Answer: Prandtl

Vibrations in the tubes of a shell and tube heat exchanger is induced due to the _________________?

A Flow of fluid on the tube and shell sides

B Oscillations in the flow of shell/tube sides fluid

C Vibrations transmitted through piping and/or supports due to external reasons

D All A., B. and C.

Review Detailed Answer

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

What is the steam economy in case of a single effect evaporator system ?

A 1

B > 1

C < 1

D 0.1

Review Detailed Answer

Correct Answer: 1

There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?

A Mercury

B Arsenic

C Aluminium

D Lead

Review Detailed Answer

Correct Answer: Aluminium

Which of the following is the most lethal water pollutant ?

A Phenol and cyanide

B Chlorine

C Alkalis

D Suspended solids

Review Detailed Answer

Correct Answer: Phenol and cyanide

In large thermal power stations very fine particulates present in flue gas are removed by___________________?

A Wet scrubber

B Bag filter

C Electrostatic precipitators

D Dust catcher

Review Detailed Answer

Correct Answer: Electrostatic precipitators

Presence of _____________ bacteria in water causes disease like typhoid?

A Aerobic

B Pathogenic

C Anaerobic

D Non-pathogenic

Review Detailed Answer

Correct Answer: Pathogenic

As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is _____________ μg/m3.(μg-microgram)?

A 10

B 90

C 800

D 750

Review Detailed Answer

Correct Answer: 90

Showing 2331 to 2340 of 9594 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter ‘d’. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to_____________________?

Heat transfer co-efficient (h) for a fluid flowing inside a clean pipe is given by h = 0.023 (K/D) (DVρ/μ)0.8 (CP.μ/k)0.4. This is valid for the value of NRe equal to_______________?

The ratio of kinematic viscosity to thermal diffusivity is called the _______________ number?

Vibrations in the tubes of a shell and tube heat exchanger is induced due to the _________________?

What is the steam economy in case of a single effect evaporator system ?

There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?

Which of the following is the most lethal water pollutant ?

In large thermal power stations very fine particulates present in flue gas are removed by___________________?

Presence of _____________ bacteria in water causes disease like typhoid?

As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is _____________ μg/m3.(μg-microgram)?