2261. In continuous chip cutting, the maximum heat __________ the velocity of cutting.
depends upon
does not depend upon
✅ 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.
2262. The thermal stress in a bar is __________ proportional to the change in temperature.
directly
indirectly
✅ The correct answer is option A.
2263. The maximum shear stress developed in a beam of rectangular section is __________ the average shear stress.
equal to
4/3 times
1.5 times
twice
✅ The correct answer is option C.
2264. In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is
high pressure saturated liquid
wet vapour
very wet vapour
dry vapour
✅ The correct answer is option A.
2265. According to Lame’s equation, the thickness of a cylinder is equal to (where d = Inner diameter of cylinder, p = Internal pressure, and μ = Poisson’s ratio. )
none of these
✅ The correct answer is option C.
2266. A Kaplan turbine is preferred for a specific speed of 300 to 1000 r.p.m.
Yes
No
✅ The correct answer is option A.
2267. Slip factor in a centrifugal compressor indicates the amount of air leaked from the storage vessel.
Yes
No
✅ The correct answer is option B.
2268. In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing
remains constant at all speeds
is minimum at zero speed and increases monotonically with increase in speed
is maximum at zero speed and decreases monotonically with increase in speed
becomes minimum at an
✅ The correct answer is option D.
2269. The work study is done by means of
planning chart
process chart
stop watch
any one of these
✅ The correct answer is option C.
2270. The train value of a gear train is
equal to velocity ratio of a gear train
reciprocal of velocity ratio of a gear train
always greater than unity
always less than unity
✅ The correct answer is option B.