Correct
Incorrect
✅ The correct answer is option B.
Engineering MCQs
The maximum efficiency of a lifting machine is
1/m
V.R./m
m/V.R.
1/(m x V.R.)
✅ The correct answer is option D.
The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles, and d = Wheel base)
sin φ + sin α =
cos φ – sin α =
cot φ – cot α =
tan φ + cot α =
✅ The correct answer is option C.
For the same maximum pressure and heat input, the exhaust temperature of petrol engine is __________ than that of diesel engine.
less
more
✅ The correct answer is option B.
The number of exhaust manifolds in a V-6 engine are
one
two
four
eight
✅ The correct answer is option B.
Acetylene gas is stored in cylinders in
solid form
gaseous form
liquid form
any one of these
✅ The correct answer is option C.
The curved lines on a psychrometric chart indicates
dry bulb temperature
wet bulb temperature
dew point temperature
relative humidity
✅ The correct answer is option D.
A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become
fn/2
2 fn
4 fn
8 fn
✅ The correct answer is option A.
According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by
equating tearing resistance of the plate to the shearing resistance of the rivets
equating tearing resistance of the plate to the crushing resistance of the rivets
equating shearing resistance to the crushing resistance of the rivets
none of the above
✅ The correct answer is option D.
Most of the engines, generally, do not require balancing of secondary forces and couples.
Right
Wrong
✅ The correct answer is option A.