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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

Which of the following types of nuclear reactors is most prone to radioactive hazards ?
A Pressurised water reactor
B Gas cooled reactor
C Molten sodium cooled reactor
D Boiling water reactor
Correct Answer: Boiling water reactor
A control rod________________?
A Should have small absorption cross-section
B Is generally made of boron, hafnium or cadmium
C Should have large absorption cross-section
D Both B. and C.
Correct Answer: Both B. and C.
The ratio of volume of an atom to that of its nucleus is__________________?
A 1012
B 10-12
C 10-8
D 108
Correct Answer: 1012
Heavy water used in the nuclear reactors to slow down the speed of neutrons is __________________?
A Highly purified water
B A compound of oxygen and deuterium
C Water having dissolved salts of heavy metals
D None of these
Correct Answer: A compound of oxygen and deuterium
Solar energy results from _______________ reaction?
A Fission
B Combustion
C Thermonuclear
D None of these
Correct Answer: Thermonuclear
Emission of β-particles during radioactive decay of a substance is from__________________?
A Innermost shell
B Nucleus
C Outermost shell
D None of these
Correct Answer: Nucleus
Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor ?
A Molten sodium cooled
B CO2 gas cooled
C Pressurised water
D Boiling water
Correct Answer: Boiling water
Which of the following is not a naturally occurring nuclear fuel ?
A Uranium-238
B Thorium-233
C Plutonium-239
D None of these
Correct Answer: Plutonium-239
Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of___________________?
A High carbon steel
B Molybdenum
C Zircaloy
D Boron or cadmium
Correct Answer: Boron or cadmium
Percentage of U-238 in natural uranium is around__________________?
A 0.71
B 99.29
C 0.015
D 29.71
Correct Answer: 99.29
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