1.013 bar
760 mm of Hg
1013 x 102 N/m2
all of these
✅ The correct answer is option D.
Mechanical Engineering MCQs
A parallel sunk key, made of steel, is equally strong in shearing and crushing.
Yes
No
✅ The correct answer is option B.
Combined carbon in iron makes the metal
soft and gives coarse grained crystalline structure
soft and gives a fine grained crystalline structure
hard and gives a coarse grained crystalline structure
hard and gives a fine
✅ The correct answer is option D.
The stiffness of a closely-coiled helical spring is __________ proportional to number of turns.
directly
inversely
✅ The correct answer is option B.
In velocity compounding of an impulse turbine, the expansion of steam takes place in a nozzle or a set of nozzles from the boiler pressure to condenser pressure.
TRUE
FALSE
✅ The correct answer is option A.
The coefficient of performance of a domestic refrigerator is __________ as compared to a domestic air-conditioner.
same
less
more
✅ The correct answer is option B.
The correct sequence for preparing a billet for extrusion process is pickling, alkaline cleaning, phosphate coating and lubricating with reactive soap.
Yes
No
✅ The correct answer is option A.
A gimlet is a __________ tool.
boring
marking
✅ The correct answer is option A.
The parallel fillet welded joints are designed for compressive strength.
Agree
Disagree
✅ The correct answer is option B.
In a compound steam engine, the temperature range per cylinder is reduced, with corresponding reduction in the condensation.
Correct
Incorrect
✅ The correct answer is option A.