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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.

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as______________________?

A Re0.5, Re0.8

B Re0.8, Re-0.5

C Re0.8, Re0.5

D Re-0.8, Re0.5

Review Detailed Answer

Correct Answer: Re0.8, Re0.5

Half life of a radioactive isotope corresponds to the time required for half of the _______________ to decay ?

A Atoms

B Neutrons

C Nucleons

D Electrons

Review Detailed Answer

Correct Answer: Atoms

Which of the following mainly decides the current to be employed is arc welding ?

A Electrode size

B Plate thickness

C Voltage across the arc

D Welded portion length

Review Detailed Answer

Correct Answer: Electrode size

Main constituent of bone ash is____________________?

A Ammonium phosphate

B Calcium phosphate

C Animal charcoal

D Ammonium sulphate

Review Detailed Answer

Correct Answer: Calcium phosphate

Isotropic materials have the same _______________________ in all directions?

A Induced stresses

B Density

C Elastic properties

D Thermal properties

Review Detailed Answer

Correct Answer: Elastic properties

Projection welding & stud welding is categorised as the _______________ welding?

A Pressure

B Thermit

C Resistance

D Arc

Review Detailed Answer

Correct Answer: Resistance

The following thermocouple may be used for measuring temperature upto 1873°K__________________?

A Chromel-alumel

B Copper-constantan

C Platinum-platinum rhodium

D Iron-constantan

Review Detailed Answer

Correct Answer: Platinum-platinum rhodium

Drossing is a _______________________ operation?

A Smelting

B Dressing

C Roasting

D Dressing

Review Detailed Answer

Correct Answer: Roasting

Lead pencil contains____________________?

A Graphite

B Lead sulphide

C Lead

D Both B. & C.

Review Detailed Answer

Correct Answer: Graphite

Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process ?

A Galvanising

B Tinning

C Sherardizing

D None of these

Review Detailed Answer

Correct Answer: Sherardizing

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as______________________?

Half life of a radioactive isotope corresponds to the time required for half of the _______________ to decay ?

Which of the following mainly decides the current to be employed is arc welding ?

Main constituent of bone ash is____________________?

Isotropic materials have the same _______________________ in all directions?

Projection welding & stud welding is categorised as the _______________ welding?

The following thermocouple may be used for measuring temperature upto 1873°K__________________?

Drossing is a _______________________ operation?

Lead pencil contains____________________?

Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process ?