forward stroke
return stroke
both forward and return strokes
cutting depends upon t
✅ The correct answer is option A.
Mechanical Engineering MCQs
In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.
right hand
left hand
✅ The correct answer is option B.
The condition that results in large quantities of HC emission is
high temperature combustion
incomplete combustion
low temperature combustion
high atmospheric tempe
✅ The correct answer is option B.
A file with 50 – 60 teeth in 25 mm is called bastard file.
TRUE
FALSE
✅ The correct answer is option B.
The inlet valve of a four stroke cycle internal combustion engine remains open for
130°
180°
230°
270°
✅ The correct answer is option C.
The purpose of a surge tank is
to control the pressure variations due to rapid changes in the pipe line flow
to eliminate water hammer possibilities
to regulate flow of water to turbines by providing necessary retarding head of water
all of the above
✅ The correct answer is option D.
A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.
coincides with
lies below
lies above
✅ The correct answer is option B.
The kinetic energy of a body __________ upon its mass and velocity.
does not depend
depends
✅ The correct answer is option B.
Grey cast iron is __________ than white cast iron.
softer
harder
✅ The correct answer is option A.
The isothermal and adiabatic processes are regarded as
reversible process
irreversible process
reversible or irreversible process
none of these
✅ The correct answer is option A.