✅ The correct answer is option B.
Mechanical Engineering MCQs
The shear force at the ends of a simply supported beam carrying a uniformly distributed load of w per unit length is
zero at its both ends
wl at one end and – wl at the other end
wl/2 at one end and – wl/2 at the other end
wl2/2 at one end and –
✅ The correct answer is option C.
The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ number of stages are required.
more
less
✅ The correct answer is option B.
A shoe brake is commonly used in railway trains.
Yes
No
✅ The correct answer is option A.
According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be
45 to 60%
63 to 70%
70 to 83%
80 to 90%
✅ The correct answer is option D.
The working pressure range for a La-Mont boiler is
0.5 to 10 MN/m2
1 to 15 MN/m2
2.5 to 15 MN/m2
3.5 to 20 MN/m2
✅ The correct answer is option D.
In a riveted joint, when the number of rivets decreases from the inner most row to outer most row, the joint is said to be
chain riveted
zig-zag riveted
diamond riveted
none of these
✅ The correct answer is option C.
In an axial flow reaction turbine, the water flows __________ to the axis of the wheel.
parallel
perpendicular
✅ The correct answer is option A.
The mechanical efficiency (ηm) of the engine is given by
none of these
✅ The correct answer is option A.
R-12 has the __________ freezing point.
lowest
highest
✅ The correct answer is option A.