Yes
No
✅ The correct answer is option A.
Mechanical Engineering MCQs
In counter-current flow heat exchanger, the logarithmic temperature difference between the fluids is __________ as compared to parallel flow heat exchanger.
same
less
greater
✅ The correct answer is option C.
In which of the following machine, the work remains stationary and the tool is rotated?
Vertical boring machine
Horizontal boring machine
Precision boring machine
Jig boring machine
✅ The correct answer is option B.
The pitching of a ship is assumed to take place with simple harmonic motion.
Yes
No
✅ The correct answer is option A.
The actual power generated in the engine cylinder is called
indicated power
brake power
frictional power
none of these
✅ The correct answer is option A.
The stiffness is the ability of a material to resist
deformation under stress
fracture due to high impact loads
externally applied forces with breakdown or yielding
none of the above
✅ The correct answer is option A.
The guideways are of
flat type
V-type
dovetail type
any one of these
✅ The correct answer is option D.
Flank wear occurs mainly on the
nose part, front relief face and side relief face of the cutting tool
face of the cutting tool at a short distance from the cutting edge
cutting edge only
front face only
✅ The correct answer is option A.
The extremeties of any diameter on Mohr’s circle represent
principal stresses
normal stresses on planes at 45°
shear stresses on planes at 45°
normal and shear stres
✅ The correct answer is option B.
The capacity of a battery is usually expressed in terms of
volts
amperes
weight
ampere-hours
✅ The correct answer is option D.