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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.

Which is not identical for an atom and an isotope_________________?

A mass number

B atomic number

C chemical properties

D position in periodic table

Review Detailed Answer

Correct Answer: mass number

Atomic number of an element in the periodic table represents the numbers of_________________?

A protons in the nucleus

B electrons in me nucleus

C neutrons in the nucleus

D electrons in the atom

Review Detailed Answer

Correct Answer: protons in the nucleus

Which of the following is secondary fuel ?

A Th232andU238

B U233andPu239

C U233andPu238

D non oh these

Review Detailed Answer

Correct Answer: U233andPu238

Pick up the wrong statement?

A In a heterogeneous or solid-fuel reactor, the fuel is mixed in a regular pattern within moderator.

B Slow or thermal neutrons have energy of the order or 0.025 eV

C Fast neutrons have energies above 1000 eV

D Fast reactor uses moderator

Review Detailed Answer

Correct Answer: Fast reactor uses moderator

Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_________________?

A centrifugal

B axial

C reciprocation

D electromagnetic

Review Detailed Answer

Correct Answer: electromagnetic

A boiling water reactor uses following as fuel________________?

A enriched uranium

B plutonium

C thorium

D U

Review Detailed Answer

Correct Answer: enriched uranium

In nuclear fission___________________?

A the original elements change into completely different elements

B the electrons of the element change

C the molecules rearrange themselves to form other molecules

D none of the above

Review Detailed Answer

Correct Answer: the original elements change into completely different elements

For economical operation of a nuclear plant__________________?

A used fuel should be reprocessed

B moderator should be used

C coolant should be employed

D control rods should be used

Review Detailed Answer

Correct Answer: used fuel should be reprocessed

Each fission of U235 produces following number of fast neutrons per fission________________?

A 1 neutron

B 1 — neutrons

C 1 – 2 neutrons

D 2 — neutrons

Review Detailed Answer

Correct Answer: 2 — neutrons

A fast breeder reactor__________________?

A uses graphite rods as moderator

B has powerful moderator

C has no moderator

D uses ferrite material as moderator

Review Detailed Answer

Correct Answer: has no moderator

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Which is not identical for an atom and an isotope_________________?

Atomic number of an element in the periodic table represents the numbers of_________________?

Which of the following is secondary fuel ?

Pick up the wrong statement?

Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_________________?

A boiling water reactor uses following as fuel________________?

In nuclear fission___________________?

For economical operation of a nuclear plant__________________?

Each fission of U235 produces following number of fast neutrons per fission________________?

A fast breeder reactor__________________?