increases
decreases
does not effect
✅ The correct answer is option B.
Mechanical Engineering MCQs
In average work, the tolerance produced by investment casting method is
±0.05 mm
+0.2 mm
+05 mm
+1 mm
✅ The correct answer is option A.
Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.
Yes
No
✅ The correct answer is option A.
Slip of a reciprocating pump is defined as the
ratio of actual discharge to the theoretical discharge
sum of actual discharge and the theoretical discharge
difference of theoretical discharge and the actual discharge
product of theoretical discharge and the actual discharge
✅ The correct answer is option C.
The main function of intake manifold is that it
promotes the mixture of air and fuel
reduces intake noise
cools the intake air to a suitable temperature
distributes intake air equally to the cylinders
✅ The correct answer is option D.
A body of weight W is required to move up on rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by(where μ = tanφ = Coefficient of friction between the plane and the body.)
P = W tanα
P = W tan(α + φ)
P = W (sinα + μcosα)
P = W (cosα + μsinα)
✅ The correct answer is option C.
The maximum production of small and slender parts is done by
watch maker’s lathe
sliding head stock automatic lathe
multispindle automatic lathe
capastan lathe
✅ The correct answer is option C.
In the torsion equation the term J/R is called
shear modulus
section modulus
polar modulus
none of these
✅ The correct answer is option C.
In __________ welding, the weld may be made either from left to right or from right to left.
fore-hand
back-hand
vertical
✅ The correct answer is option C.