TRUE
FALSE
✅ The correct answer is option A.
Mechanical Engineering MCQs
For dynamic balancing of a shaft
the net dynamic force acting on the shaft is equal to zero
the net couple due to the dynamic forces acting on the shaft is equal to zero
both (a) and (b)
none of the above
✅ The correct answer is option C.
In drilling aluminium, 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 C.
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.
one
two
three
four
✅ The correct answer is option A.
In a unit cell of close packed hexagonal space lattice, there are twenty four atoms.
Correct
Incorrect
✅ The correct answer is option B.
The ball joints are used on the tie-rod ends, because they
reduce the amount of noise generated
reduce the amount of sliding resistance
can deal with movement of the suspension both vertically and in other directions
improve the force tran
✅ The correct answer is option C.
If three forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, the forces shall be in equilibrium.
TRUE
FALSE
✅ The correct answer is option A.
A steel containing 16 to 18% chromium and about 0.12% carbon is called
ferritic stainless steel
austenitic stainless steel
martensitic stainless steel
nickel steel
✅ The correct answer is option A.
The air cooling system mostly used in transport type aircrafts is
simple air cooling system
simple evaporative air cooling system
boot-strap air cooling system
all of these
✅ The correct answer is option C.
During heating and humidification, the final relative humidity of air
is higher than that of the entering air
is lower than that of the entering air
can be lower or higher than that of the entering air
none of the above
✅ The correct answer is option C.