Correct
Incorrect
✅ The correct answer is option B.
Mechanical Engineering MCQs
The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.
TRUE
FALSE
✅ The correct answer is option A.
In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)
d + 17 mm
2 d + 13 mm
2 d + 20 mm
3.5 d
✅ The correct answer is option D.
The stiffness is the ability of a material to resist deformation under stress.
TRUE
FALSE
✅ The correct answer is option A.
For softer materials, the point angle of the drill is kept
equal to 118°
less than 118°
more than 118°
any one of these
✅ The correct answer is option B.
The value of universal gas constant is same for all gases.
Yes
No
✅ The correct answer is option A.
The main function of an exhaust muffler is the
optimisation of exhaust efficiency
reduction of exhaust noise
reduction of nitrogen oxide in the exhaust gases
reduction of the exhau
✅ The correct answer is option B.
In hot machining, the work is heated by
simple heating
flame heating
induction heating
any one of these
✅ The correct answer is option D.
The function of positive crankcase ventilation (PCV) system is that it
mixes fuel with air
promotes combustion by creating a swirling movement in the air-fuel mixture
returns blow-by gases from the crankcase to the intake system
feeds blow-by gases to
✅ The correct answer is option C.
The Locomotive boiler has
137 fire tubes and 44 superheated tubes
147 fire tubes and 34 superheated tubes
157 fire tubes and 24 superheated tubes
167 fire tubes and 14
✅ The correct answer is option C.