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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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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.

All Topics  9594

The decrease in the atomic number is not observed in case of________________?
A Electron capture
B β-emission
C α-emission
D Positron emission
Correct Answer: β-emission
The main purpose of control rod in a nuclear reactor is to control the___________________?
A Chain reaction and hence the power output by regulating the number of secondary neutrons
B Emission of hazardous radiation
C Conversion of fissile material into fertile material
D Velocity of the secondary neutrons
Correct Answer: Chain reaction and hence the power output by regulating the number of secondary neutrons
Radioactive decay of a material involves a _____________ order reaction?
A Third
B Second
C First
D Zero
Correct Answer: First
Out of the following places, a nuclear power plant is not located at______________?
A Talcher (Orissa)
B Kaiga (Karnataka)
C Rawatbhata (Rajasthan)
D Kalpakkam (Tamilnadu)
Correct Answer: Talcher (Orissa)
Unit of radioactivity is_________________?
A Barn
B Fermi
C Angstrom
D Curie
Correct Answer: Curie
Liquid metal (e.g., molten sodium) is preferred as a coolant in case of a/an ______________ reactor?
A Homogeneous
B Graphite moderated
C Fast breeder
D Enriched uranium (3% U-235) fuelled
Correct Answer: Fast breeder
The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then____________?
A 3/4th of it will disintegrate in two months
B It will completely disintegrate in two months
C It will completely disintegrate in four months
D 1/8th of it will remain intact at the end of four months
Correct Answer: It will completely disintegrate in two months
A heterogeneous reactor is the one, in which the moderator and the________________?
A Coolant are different materials
B Coolant are present in different phases (e.g., heavy water and graphite)
C Fuel are present in different phases (e.g. uranium and heavy water)
D None of these
Correct Answer: Fuel are present in different phases (e.g. uranium and heavy water)
Fuel for a nuclear reactor (thermal) is___________________?
A Uranium
B Plutonium
C Radium
D None of these
Correct Answer: Uranium
Water is a better coolant than a gas (like CO2, He, N2 etc.), because it_________________?
A Is a better neutron moderator as well
B Require comparatively smaller pumps and heat exchanger for a given heat transfer rate
C Has a better heat transfer characteristics, and it can be pressurised to attain a high temperature
D All A., B. and C.
Correct Answer: All A., B. and C.
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