TRUE
FALSE
✅ The correct answer is option B.
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.
52. The absolute pressure of air at the outlet of a compressor is called
back pressure
critical pressure
discharge pressure
none of these
✅ The correct answer is option C.
53. The path taken by intake air is
carburettor (or throttle body) – air cleaner – intake manifold – intake ports – cylinders
air cleaner – carburettor (or throttle body) -intake ports – intake manifold – cylinders
air cleaner – intake manifold – carburettor (or throttle body) – intake ports – cylinders
air cleaner – carburet
✅ The correct answer is option D.
54. In a multiple V-belt drive, if one of the belts break, then
only the broken belt is replaced
the entire set of belts is replaced
the broken belt and the belt on either side of it, is replaced
the broken belt need n
✅ The correct answer is option B.
55. The cold working of metals is carried out
at the recrystallisation temperature
below the recrystallisation temperature
above the recrystallisation temperature
at any temperature
✅ The correct answer is option B.
56. The process, which causes the air to enter the impeller blades of a centrifugal compressor at __________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.
reduced
increased
✅ The correct answer is option A.
57. Scribing block is used to
hold the round bars during marking
check the trueness of flat surfaces
locate the centres of round bars
check the surface roug
✅ The correct answer is option C.
58. Non-coplaner concurrent forces are those forces which
meet at one point, but their lines of action do not lie on the same plane
do not meet at one point and their lines of action do not lie on the same plane
meet at one point and their lines of action also lie on the same plane
do not meet at one poi
✅ The correct answer is option A.
59. The maximum displacement of a body, from its mean position is called amplitude.
Correct
Incorrect
✅ The correct answer is option A.
60. Modulus of rigidity may be defined as the ratio of
linear stress to lateral strain
lateral strain to linear strain
linear stress to linear strain
shear stress to shear
✅ The correct answer is option D.