Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

The mass number of a substance represents the sum of total number of___________________?

A protons and neutrons in an atom

B protons and electrons in an atom

C neutrons and electrons in an atom

D protons and neutrons in a nucleus

Review Detailed Answer

Correct Answer: protons and neutrons in a nucleus

The process by which a heavy nucleus is splitted into two light nuclei is known as_________________?

A splitting

B fission

C fusion

D disintegration

Review Detailed Answer

Correct Answer: fission

A nuclear fission produces energy of following order in MeV___________________?

A 20

B 200

C 2000

D 20,000

Review Detailed Answer

Correct Answer: 20

The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is________________?

A same

B lower

C higher

D unity

Review Detailed Answer

Correct Answer: lower

Which of the following is the heaviest________________?

A neutron

B proton

C atom

D electron

Review Detailed Answer

Correct Answer: atom

Enriched uranium is one in which__________________?

A %age of U235 has been artificially in-creased

B %age of U has been artificially increased

C %age of U234 has been artificially in-creased

D extra energy is pumped from outside

Review Detailed Answer

Correct Answer: %age of U235 has been artificially in-creased

Which of the following are ferrite materials__________________?

A U233andPu239

B U

C U238andPu239

D U238andTh239

Review Detailed Answer

Correct Answer: U

The main interest of shielding in nuclear reactor is protection against_______________?

A X-rays

B infra-red rays

C a, P, and y rays

D neutrons and gamma rays

Review Detailed Answer

Correct Answer: neutrons and gamma rays

Moderator in nuclear plants is used to__________________?

A reduce temperature

B extract heat from nuclear reaction

C control the reaction

D cause collision with the fast moving neutrons to reduce their speed

Review Detailed Answer

Correct Answer: cause collision with the fast moving neutrons to reduce their speed

The nuclear energy is measured as__________________?

A MeV

B curie

C farads

D MW

Review Detailed Answer

Correct Answer: MeV

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

The mass number of a substance represents the sum of total number of___________________?

The process by which a heavy nucleus is splitted into two light nuclei is known as_________________?

A nuclear fission produces energy of following order in MeV___________________?

The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is________________?

Which of the following is the heaviest________________?

Enriched uranium is one in which__________________?

Which of the following are ferrite materials__________________?

The main interest of shielding in nuclear reactor is protection against_______________?

Moderator in nuclear plants is used to__________________?

The nuclear energy is measured as__________________?