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.
Mechanical Engineering MCQs
In order to double the period of a simple pendulum, the length of the string should be
halved
doubled
quadrupled
none of these
✅ The correct answer is option C.
A vapour absorption refrigerator uses __________ as a refrigerant.
water
ammonia
freon
aqua-ammonia
✅ The correct answer is option D.
A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because
it is easier to see through the glass tube
glass tube is cheaper than a metallic tube
it is not possible to conduct this experiment with any other tube
all of the above
✅ The correct answer is option A.
The ratio of surface convection resistance to the internal conduction resistance is known as
Grashoff number
Biot number
Stanton number
Prandtl number
✅ The correct answer is option B.
The emissivity for a black body is
0
0.5
0.75
1
✅ The correct answer is option D.
In welding aluminium with TIG arc welding, alternating current is used.
Correct
Incorrect
✅ The correct answer is option A.
In a four stroke engine, the working cycle is completed in
one revolution of the crankshaft
two revolutions of the crankshaft
three revolutions of the crankshaft
four revolutions of th
✅ The correct answer is option B.
Sulphur dioxide is extremely toxic and non-flammable.
TRUE
FALSE
✅ The correct answer is option A.
The centre of gravity of a triangle lies at a point where its medians intersect each other.
TRUE
FALSE
✅ The correct answer is option A.