✅ The correct answer is option C.
Mechanical Engineering MCQs
The inclined and non-uniformly spaced straight lines on a psychrometric chart indicates wet bulb temperature.
Agree
Disagree
✅ The correct answer is option A.
The acceleration of a particle moving with simple harmonic motion, at any instant is given by
ω.y
ω2.y
ω2 /y
ω3.y
✅ The correct answer is option B.
The thermodynamic cycle on which the petrol engine works, is
Otto cycle
Joule cycle
Rankine cycle
Stirling cycle
✅ The correct answer is option A.
There is about 15 to 20% of coal saving when an economiser is used in a boiler.
TRUE
FALSE
✅ The correct answer is option A.
Dummy activities are used to
determine the critical path
determine the project completion time
maintain the required net work
none of these
✅ The correct answer is option C.
The ratio of the lateral strain to the linear strain is called
modulus of elasticity
modulus of rigidity
bulk modulus
Poisson’s ratio
✅ The correct answer is option D.
In a flat belt drive, if the slip between the driver and belt is 1 %, between the belt and follower is 3% and driver and follower pulley diameters are equal, then velocity ratio of the drive will be
0.96
0.97
0.98
0.99
✅ The correct answer is option A.
Blading efficiency is also known as
stage efficiency
diagram efficiency
nozzle efficiency
none of these
✅ The correct answer is option B.
The freezing point of carbon dioxide is equal to boiling point of R-12.
Correct
Incorrect
✅ The correct answer is option B.