TRUE
FALSE
✅ The correct answer is option A.
Mechanical Engineering MCQs
When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a
lower pair
higher pair
self-closed pair
force-closed pair
✅ The correct answer is option D.
The materials used for cylinder block are
cast iron and steel
cast iron and aluminium alloy
steel and aluminium alloy
brass and steel
✅ The correct answer is option B.
The heat of sun reaches to us according to
conduction
convection
radiation
none of these
✅ The correct answer is option C.
A good steam boiler is one which produces maximum quantity of steam with the given fuel
Agree
Disagree
✅ The correct answer is option A.
The frictional torque transmitted by a disc or plate clutch is same as that of
flat pivot bearing
flat collar bearing
conical pivot bearing
truncated conical pivo
✅ The correct answer is option B.
The addition of which of the following improves machining of copper?
Sulphur
Vanadium
Tin
Zinc
✅ The correct answer is option A.
In a cold chamber die casting machine, only non-ferrous alloys with __________ are casted.
low melting temperature
high melting temperature
✅ The correct answer is option B.
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as
tractive force
swaying couple
hammer blow
none of these
✅ The correct answer is option C.
The material of pipe lines for a system using ammonia as a refrigerant should be copper.
Yes
No
✅ The correct answer is option B.