efficiency of the boiler
efficiency of the chimney
efficiency of the fan
power of the boiler
✅ The correct answer is option B.
Engineering MCQs
Which of the following statements are true for annealing of steels?
Steels are heated to 500 to 700° C
Cooling is done slowly and steadily
Internal stresses are relieved
all of these
✅ The correct answer is option D.
The friction experienced by a body, when at rest, is known as
static friction
dynamic friction
limiting friction
coefficient of frictio
✅ The correct answer is option A.
Highest useful compression ratio (HUCR) is the highest compression ratio at which the
engine can run
engine gives maximum output
engine is most efficient
fuel can be used in a
✅ The correct answer is option D.
Hindalium is an alloy of aluminium and magnesium with a small quantity of chromium.
Agree
Disagree
✅ The correct answer is option A.
The minimum size of a bloom is
5 cm x 5 cm
10 cm x 10 cm
15 cm x 15 cm
20 cm x 20 cm
✅ The correct answer is option C.
When the end of a tap is tapered for about three or four threads, it is known as a
taper tap
bottoming tap
second tap
none of these
✅ The correct answer is option C.
The heating of a gas at constant pressure is governed by
Boyle’s law
Charles’ law
Gay-Lussac law
Avogadro’s law
✅ The correct answer is option B.
The condition of refrigerant as it leaves the compressor in a vapour compression system is
saturated liquid
wet vapour
dry saturated vapour
superheated vapour
✅ The correct answer is option D.