less than 20 kmph
less than 40 kmph
less than 60 kmph
more than 60 kmph
✅ The correct answer is option B.
Mechanical Engineering MCQs
The columns whose slenderness ratio is less than 80, are known as
short columns
long columns
weak columns
medium columns
✅ The correct answer is option A.
Emissivity of a body will be equal to its absorptivity at all temperatures.
Yes
No
✅ The correct answer is option B.
The addition of lead, sulphur and phosphorus to low carbon steels, help to
reduce built up edge
break up chips
improve machinability
all of these
✅ The correct answer is option D.
Damper in an automobile is used to
absorb the energy
dissipate the energy
release the energy
increase the energy
✅ The correct answer is option B.
All perfect gases change in volume by 1 / 273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
Boyle’s law
Charles’ law
Gay-Lussac law
Joule’s law
✅ The correct answer is option B.
For perfect intercooling in a three stage compressor,
p1p2 = p3p4
p1p3 = p2p4
✅ The correct answer is option A.
Cast iron has
high compressive strength
excellent machinability
good casting characteristic
all of these
✅ The correct answer is option D.
The centrifugal pump preferred for a specific speed between 80 to 160 r.p.m. is
slow speed with radial flow at outlet
medium speed with radial flow at outlet
high speed with radial flow at outlet
high speed with mixed
✅ The correct answer is option D.
The rivets are made from ductile material.
Yes
No
✅ The correct answer is option A.