Yes
No
✅ The correct answer is option B.
Mechanical Engineering MCQs
The direction of linear velocity of any point on a link with respect to another point on the same link is
parallel to the link joining the points
perpendicular to the link joining the points
at 45° to the link joining the points
none of the above
✅ The correct answer is option B.
The efficiency of Diesel cycle depends upon
temperature limits
pressure ratio
compression ratio
cut-off ratio and comp
✅ The correct answer is option D.
The ratio of the inertia force to the surface tension force is called Weber’s number.
Correct
Incorrect
✅ The correct answer is option A.
The boiling point of carbon dioxide is
-20.5°C
-50°C
-63.3°C
-78.3°C
✅ The correct answer is option D.
Effort of a governor is the
mean force exerted at the sleeve for a given percentage change of speed
workdone at the sleeve for maximum equilibrium speed
mean force exerted at the sleeve for maximum equilibrium speed
none of the above
✅ The correct answer is option A.
The __________ engines can work on very lean mixture of fuel.
spark ignition
compression ignition
✅ The correct answer is option B.
The abrasive slurry used in ultra-sonic machining contains fine particles of
aluminium oxide
boron carbide
silicon carbide
any one of these
✅ The correct answer is option D.
The ratio of the energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam is called mechanical efficiency.
Yes
No
✅ The correct answer is option B.
The specific gravity of Diesel is about
0.65
0.75
0.85
0.95
✅ The correct answer is option C.