-0.33333333333333
-0.66666666666667
1
-1
✅ The correct answer is option A.
Mechanical Engineering MCQs
A mechanism consisting of more than four links is called a compound mechanism.
TRUE
FALSE
✅ The correct answer is option A.
When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of direct stress to the corresponding volumetric strain is known as
Young’s modulus
modulus of rigidity
bulk modulus
Poisson’s ratio
✅ The correct answer is option C.
The __________ point of ammonia is -77.7°C.
freezing
boiling
✅ The correct answer is option A.
For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be
4
6
8
10
✅ The correct answer is option A.
In levers, leverage is the ratio of
load lifted to the effort applied
mechanical advantage to the velocity ratio
load arm to the effort arm
effort arm to the load
✅ The correct answer is option D.
In a nozzle, the effect of supersaturation is to
decrease dryness fraction of steam
decrease specific volume of steam
increase the entropy
increase the heat drop
✅ The correct answer is option C.
The steel widely used for motor car crankshafts is
nickel steel
chrome steel
nickel-chrome steel
silicon steel
✅ The correct answer is option B.
In forced vibrations, the magnitude of damping force at resonance is equal to the impressed force.
Correct
Incorrect
✅ The correct answer is option A.
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.
partially
fully
✅ The correct answer is option A.