deliver molten metal into the mould cavity
act as a reservoir for the molten metal
feed the molten metal to the casting in order to compensate for the shrinkage
deliver molten metal f
✅ The correct answer is option A.
Mechanical Engineering MCQs
The heat is transferred by conduction, convection and radiation in
melting of ice
boiler furnaces
condensation of steam in condenser
none of these
✅ The correct answer is option B.
The material commonly used for crane hooks is
cast iron
wrought iron
mild steel
aluminium
✅ The correct answer is option B.
An overhanging beam must overhang on both sides.
Correct
Incorrect
✅ The correct answer is option B.
The bending moment at a section tends to bend or deflect the beam and the internal stresses resist its bending. The resistance offered by the internal stresses, to the bending, is called
compressive stress
shear stress
bending stress
elastic modulus
✅ The correct answer is option C.
When indicated power (I.P.) and frictional power (F.P.) are known, we can calculate
brake power
compression ratio
specific air consumption
mean effective pressur
✅ The correct answer is option A.
The expression is used for calculating
relative humidity
humidity ratio
degree of saturation
pressure of water vapo
✅ The correct answer is option B.
In drilling brass, a drill with
zero helix angle is used
low helix angle is used
high helix angle is used
any helix angle can be
✅ The correct answer is option B.
The structure of a grinding wheel depends upon
hardness of the material being ground
nature of the grinding operation
finish required
all of these
✅ The correct answer is option D.
When a gas is heated, change takes place in
pressure
volume
temperature
all of these
✅ The correct answer is option D.