4411. The velocity factor for ordinary cut gears operating at velocities upto 12.5 m/s is equal to
✅ 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.
4412. The hydraulic gradient line may be above or below the centre line of the pipe.
TRUE
FALSE
✅ The correct answer is option B.
4413. In a mechanism, the fixed instantaneous centres are those centres which
remain in the same place for all configurations of the mechanism
vary with the configuration of the mechanism
moves as the mechanism moves, but joints are of permanent nature
none of the above
✅ The correct answer is option A.
4414. The process of removing metal by a cutter which is rotated against the direction of travel of workpiece, is called
up milling
down milling
face milling
end milling
✅ The correct answer is option A.
4416. The operation of bending a sheet of metal along a curved axis, is known as
plunging
notching
slitting
forming
✅ The correct answer is option D.
4417. A good refrigerant should have
high latent heat of vaporisation and low freezing point
high operating pressures and low freezing point
high specific volume and high latent heat of vaporisation
low C.O.P. and low fre
✅ The correct answer is option A.
4418. The horizontal and uniformly spaced lines on a psychrometric chart indicates relative humidity.
Correct
Incorrect
✅ The correct answer is option B.
4419. The tool life is affected by
depth of cut
cutting speed
feed
all of these
✅ The correct answer is option D.
4420. One molecule of oxygen consists of __________ atoms of oxygen.
2
4
8
16
✅ The correct answer is option A.