in heat exchanger design as a safety factor
in case of Newtonian fluids
when a liquid exchanges heat with a gas
none of the above
✅ The correct answer is option A.
Mechanical Engineering MCQs
In order to check the clearance between two mating surfaces, a __________ gauge should be used.
ring
plug
feeler
✅ The correct answer is option C.
Petrol is distilled at
65° to 220°C
220° to 345°C
345° to 470°C
470° to 550°C
✅ The correct answer is option A.
In a __________ , two or more operations are performed simultaneously at the single stroke of the ram.
simple die
progressive die
combination die
compound die
✅ The correct answer is option B.
The maximum shear stress is __________ the algebraic difference of maximum and minimum normal stresses.
equal to
one-fourth
one-half
twice
✅ The correct answer is option C.
When a load on the free end of a cantilever beam is increased, failure will occur
at the free end
at the fixed end
in the middle of the beam
at a distance 2l/3 fro
✅ The correct answer is option B.
For air conditioning the operation theatre in a hospital, the percentage of outside air in the air supplied is
zero
20
50
100
✅ The correct answer is option D.
The velocity of steam at throat of the nozzle is __________ the velocity of sound.
equal to
less than
more than
✅ The correct answer is option A.
The fuel mostly used in cement industry and in metallurgical processes is
wood charcoal
bituminous coke
pulverised coal
coke
✅ The correct answer is option C.
The layer at the centre of gravity of the beam as shown in the below figure, will be
in tension
in compression
neither in tension nor in compression
✅ The correct answer is option C.