4601. If the level of tension in the belt is too high, it can result in a loss of power or in bending of the rotating shaft or crankshaft.
Correct
Incorrect
✅ The correct answer is option A.
Mechanical Engineering
Prepare with the best Mechanical Engineering MCQs with answers and explanations for exams, interviews, and job tests. Our collection covers core topics such as engineering mechanics, thermodynamics, strength of materials, theory of machines, fluid mechanics, heat transfer, manufacturing processes, machine design, and power plant engineering. These Mechanical Engineering multiple-choice questions are designed for students, fresh graduates, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your technical knowledge and problem-solving ability with our updated and comprehensive Mechanical Engineering MCQs.
4602. The average cutting speed for turning brass with a high speed steel tool is
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min
✅ The correct answer is option C.
4603. A Francis turbine is used when the available head of water is
0 to 25 m
25 m to 250 m
above 250 m
none of these
✅ The correct answer is option B.
4604. Carbonisation of coal consists of
drying and crushing the coal to a fine powder
moulding the finely ground coal under pressure with or without a binding material
heating the wood with a limited supply of air to temperature not less than 280°C
none of the above
✅ The correct answer is option D.
4605. A round nose tool may be fed eitner from left to right end or from right to left end of the lathe bed.
Yes
No
✅ The correct answer is option A.
4606. The kinetic energy of molecules of a gas becomes zero at absolute zero temperature.
Agree
Disagree
✅ The correct answer is option A.
4607. Nodular cast iron is produced by adding __________ to the molten cast iron.
nickel
chromium
copper
magnesium
✅ The correct answer is option D.
4608. The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).
less than
equal to
more than
✅ The correct answer is option C.
4609. A perfect black body is one which
is black in colour
absorbs heat radiations of all wave lengths falling on it
reflects all the heat radiations
transmits the heat radiations
✅ The correct answer is option B.
4610. Each fission of U235 produces on the average __________ fast neutrons as a product of reaction.
2.46
24.6
246
2460
✅ The correct answer is option A.