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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

Supertheated steam is generated in following reactor________________?
A boiling water
B gas cooled
C pressurised water
D all of the above
Correct Answer: gas cooled
The energy produced by a thermal reactor of same size as a breeder reactor is__________________?
A almost same
B slightly more
C slightly less
D much less
Correct Answer: much less
The size of the reactor is said to be critical when_________________?
A chain reaction can be initiated
B it becomes uncontrollable
C it explodes
D it produces no power
Correct Answer: chain reaction can be initiated
In triggering fission, which type of neutrons are more effective_________________?
A fast
B slow
C in bulk
D static
Correct Answer: slow
Breeder reactors employ liquid metal coolant because it_______________?
A acts as good moderator
B produces maximum steam
C transfers heat from core at a fast rate
D breeds neutrons
Correct Answer: transfers heat from core at a fast rate
Reactors for propulsion applications use_________________?
A natural uranium
B molten lead
C any form of uranium
D thorium
Correct Answer: molten lead
A pressurised water reactor employs pressuriser for the following application________________?
A to maintain constant pressure in primary circuit under varying load
B to Supply high pressure steam
C to increase pressure of water in primary circut
D to provide subcooled water at high pressure
Correct Answer: to maintain constant pressure in primary circuit under varying load
The function of control rods in nuclear plants is to__________________?
A control temperature
B control readioactive pollution
C control absorption of neutron
D control fuel consumption
Correct Answer: control absorption of neutron
Which of the following can be used as a coolant in nuclear plant________________?
A light or heavy water
B molten lead
C carbon dioxide
D freon
Correct Answer: light or heavy water
Which of the following is the primary fuel________________?
A Ulii
B U
C U238
D Pu:
Correct Answer: U
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