n1 + n2
n1 + n2 + 1
n1 + n2 – 1
n1 + n2 – 2
✅ The correct answer is option C.
Engineering MCQs
The sensitiveness of a governor depends upon the lift of the sleeve.
Right
Wrong
✅ The correct answer is option A.
Power screws are used to convert rotary motion into translatory motion.
TRUE
FALSE
✅ The correct answer is option A.
The diameter of a cylindrical shell of a Scotch marine boiler varies from
1.5 to 2 m
2.5 to 3.5 m
3.5 to 4.5 m
none of these
✅ The correct answer is option B.
A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called
blow off cock
stop valve
superheater
none of these
✅ The correct answer is option D.
Metal patterns require __________ draft allowance than wooden patterns.
more
less
✅ The correct answer is option B.
The thermal efficiency of a petrol engine is __________ as compared to diesel engine.
same
less
more
✅ The correct answer is option B.
In case of liquids and gases, the heat transfer takes place according to
conduction
convection
radiation
none of these
✅ The correct answer is option B.
In a four high rolling mill, the diameter of backing up rolls is __________ the diameter of working rolls.
equal to
smaller than
larger than
✅ The correct answer is option C.
The tool life __________ as the cutting speed increases.
decreases
increases
✅ The correct answer is option A.