Halsey plan
Gantt plan
Rowan plan
Emerson’s efficiency plan
✅ The correct answer is option A.
Engineering MCQs
In A-B-C analysis, which class of items are generally large in number?
A
B
C
none of these
✅ The correct answer is option C.
An economiser __________ the steam raising capacity of a boiler.
increases
decreases
has no effect on
✅ The correct answer is option A.
The blade velocity coefficient is ratio of relative velocity of steam at outlet tip of the blade to the relative velocity of steam at inlet tip of the blade.
TRUE
FALSE
✅ The correct answer is option A.
A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m2 attached in the same plane of rotation as that of m1, such that (where r1 and r2 are the radii of rotation of m1 and m2 respectively)
m1r2 = m2r1
m1r1 = m2r2
m1m2 = r1r2
none of these
✅ The correct answer is option B.
The range of a projectile is maximum, when the angle of projection is
30°
45°
60°
90°
✅ The correct answer is option B.
A plug gauge is used to check the diameter of shafts and studs.
Correct
Incorrect
✅ The correct answer is option B.
The load cup of a screw jack is made separate from the head of the spindle to
enhance the load carrying capacity of the jack
reduce the effort needed for lifting the working load
prevent the rotation of load being lifted
reduce the value of frictional torque
✅ The correct answer is option C.
In a screw jack, the effort required to lower the load W is given by
P = W tan(α – φ)
P = W tan(α + φ)
P = W tan(φ – α)
P = W cos(α + φ)
✅ The correct answer is option C.
The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the
jet area is automatically varied depending on the suction
the flow from the main jet is diverted to the compensating jet with increase in speed
the diameter of the jet is constant and the discharge coefficient is invariant
flow is produced due to the static head in the float chamber
✅ The correct answer is option D.