Agree
Disagree
✅ The correct answer is option A.
Mechanical Engineering MCQs
Number of working strokes per min. for a four stroke cycle engine are __________ the speed of the engine in r.p.m.
equal to
one-half
twice
four-times
✅ The correct answer is option B.
The sensible heat gain is due to the __________ difference between the fresh air and the air in space.
temperature
humidity
✅ The correct answer is option A.
An average value of coefficient of velocity is
0.62
0.76
0.84
0.97
✅ The correct answer is option D.
Thermal diffusivity of a substance is
directly proportional to the thermal conductivity
inversely proportional to density of substance
inversely proportional to specific heat
all of the above
✅ The correct answer is option D.
A turn buckle is used to connect two round rods subjected to tensile loading and requiring subsequent adjustment for tightening or loosening.
Yes
No
✅ The correct answer is option A.
The property of a material which enables it to retain the deformation permanently, is called
brittleness
ductility
malleability
plasticity
✅ The correct answer is option D.
The workdone in a free expansion process is zero.
TRUE
FALSE
✅ The correct answer is option A.
A screw is specified by its
major diameter
minor diameter
pitch diameter
pitch
✅ The correct answer is option A.
A fine grained grinding wheel is used to grind
hard and brittle materials
soft and ductile materials
hard and ductile materials
soft and brittle mater
✅ The correct answer is option A.