linear stress to linear strain
linear stress to lateral strain
volumetric strain to linear strain
shear stress to shear
✅ The correct answer is option D.
Mechanical Engineering MCQs
A screw is said to be a self locking screw, if its efficiency is
less than 50 %
more than 50%
equal to 50%
none of these
✅ The correct answer is option A.
Kelvin-Planck’s law deals with
conservation of work
conservation of heat
conversion of heat into work
conversion of work int
✅ The correct answer is option C.
A machine having an efficiency less than 50%, is known as
reversible machine
non-reversible machine
neither reversible nor non-reversible machine
ideal machine
✅ The correct answer is option B.
The natural frequency of free transverse vibrations is same as that of free longitudinal vibrations.
Right
Wrong
✅ The correct answer is option A.
In an inward flow reaction turbine
the water flows parallel to the axis of the wheel
the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
the water enters the wheel at the outer periphery and then flows towards the centre of the wheel
the flow of water is p
✅ The correct answer is option C.
Which of the following display properties similar to that of steel?
Blackheart cast iron
Whiteheart cast iron
both (a) and (b)
none of these
✅ The correct answer is option C.
Which of the following statement is correct about the network diagram?
The events are represented graphically by circles or nodes at the beginning and the end of activity by arrows.
The tail end of the arrow represents the start of an activity.
The head of the arrow represents the end of an activity.
all of the above
✅ The correct answer is option D.
The hydraulic efficiency of a reaction turbine, is the ratio of
power produced by the turbine to the energy actually supplied by the turbine
actual work available at the turbine to energy imparted to the wheel
workdone on the wheel to the energy (or head of water) actually supplied to the turbine
none of the above
✅ The correct answer is option C.
In a Hartnell governor, the compression of the spring is __________ the lift of the sleeve.
equal to
less than
greater than
✅ The correct answer is option A.