bh3/4
bh3/8
bh3/12
bh3/36
✅ The correct answer is option D.
Mechanical Engineering MCQs
Work study involues
only method study
only work measurement
method study and work measurement
only motion study
✅ The correct answer is option C.
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as __________ double cover butt joint.
single riveted
double riveted
✅ The correct answer is option B.
An axial compressor gives optimum performance at high speeds and large volume flows.
Agree
Disagree
✅ The correct answer is option A.
An isothermal process is governed by
Boyle’s law
Charles’ law
Gay-Lussac law
Avogadro’s law
✅ The correct answer is option A.
The blade velocity coefficient is ratio of relative velocity of steam at outlet tip of the blade to the relative velocity of steam at inlet tip of the blade.
TRUE
FALSE
✅ The correct answer is option A.
A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m2 attached in the same plane of rotation as that of m1, such that (where r1 and r2 are the radii of rotation of m1 and m2 respectively)
m1r2 = m2r1
m1r1 = m2r2
m1m2 = r1r2
none of these
✅ The correct answer is option B.
The point of contraflexure is a point where
shear force changes sign
bending moment changes sign
shear force is maximum
bending moment is maximum
✅ The correct answer is option B.
The cetane number of a Diesel fuel is a measure of
volatility
viscosity
ignition quality
delay peirod
✅ The correct answer is option D.
The unit discharge through the turbine is
✅ The correct answer is option A.