Correct
Incorrect
✅ The correct answer is option A.
Mechanical Engineering MCQs
The compression ignition engines are governed by
hit and miss governing
qualitative governing
quantitative governing
combination of (b) and
✅ The correct answer is option B.
In a riveted joint, when the rivets in the various rows are opposite to each other, the joint is said to be
chain riveted
zig-zag riveted
diamond riveted
none of these
✅ The correct answer is option A.
When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a
D-slide valve
governor
Meyer’s expansion valve
flywheel
✅ The correct answer is option B.
The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called
natural draught
induced draught
forced draught
balanced draught
✅ The correct answer is option B.
Hard and tough materials like cast iron should be turned at
slow speed
high speed
any speed
certain specific speed
✅ The correct answer is option A.
The assumption made in Euler’s column theory is that
the failure of column occurs due to buckling alone
the length of column is very large as compared to its cross-sectional dimensions
the column material obeys Hooke’s law
all of the above
✅ The correct answer is option D.
In a lithium bromide absorption refrigeration system
lithium bromide is used as a refrigerant and water as an absorbent
water is used as a refrigerant and lithium bromide as an absorbent
ammonia is used as a refrigerant and lithium bromide as an absorbent
none of the above
✅ The correct answer is option B.
The difference between the notch and weir is that the notch is of bigger size and the weir is of a smaller size.
Agree
Disagree
✅ The correct answer is option B.
The bending moment at the free end of a cantilever beam is
zero
minimum
maximum
✅ The correct answer is option A.