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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

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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.

All Topics  1919

Breeder reactor has a conversion ratio of_____________________?
A unity
B more than unity
C less than unity
D zero
Correct Answer: unity
One gram of uranium will produce energy equivalent to approximately____________________?
A 1 tonne of high grade coal
B 4.5 tonnes of high grade coal
C 10 tonnes of high grade coal
D 100 tonnes of high grade coal
Correct Answer: 4.5 tonnes of high grade coal
Boiling water reactor employs__________________?
A boiler
B direct cycle of coolant system
C double circuit system of coolant cycle
D multi pass system
Correct Answer: direct cycle of coolant system
The total energy released in fission of U is__________________?
A 5 MeV
B 10 MeV
C 199 MeV
D 168 MeV
Correct Answer: 199 MeV
A nuclear unit becoming critical means_______________?
A it is generating power to rated capacity
B it is capable of generating much more than rated capacity
C there is danger of nuclear spread
D chain reaction that causes automatic splitting of the fuel nuclei has been established
Correct Answer: chain reaction that causes automatic splitting of the fuel nuclei has been established
Which is not identical for an atom and an isotope_________________?
A mass number
B atomic number
C chemical properties
D position in periodic table
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
Correct Answer: protons in the nucleus
Which of the following is secondary fuel ?
A Th232andU238
B U233andPu239
C U233andPu238
D non oh these
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
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
Correct Answer: electromagnetic
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