ω₁.ω₂.r
(ω₁ - ω₂) r
(ω₁ + ω₂) r
(ω₁ - ω₂) 2r
C. (ω₁ + ω₂) r
Magnitude of the forces on journal
Angular velocity of journal
Clearance between journal and bearing
Radius of journal
Pitch circle dia. × cosφ
Addendum circle dia. × cosφ
Clearance circle dia. × cosφ
Pitch circle dia. × sinφ
Cylinder and piston
Piston rod and connecting rod
Crankshaft and flywheel
Flywheel and engine frame
Radial component only
Tangential component only
Coriolis component only
Radial and tangential components both
(1/2). μ W cosecα (r₁ + r₂)
(2/3). μ W cosecα (r₁ + r₂)
(1/2). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]
(2/3). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]
Increases
Decreases
Remain unaffected
First increases and then decreases
Along the angular velocity
Opposite to angular velocity
May be any one of these
Perpendicular to angular velocity
Point or line contact between the two elements when in motion
Surface contact between the two elements when in motion
Elements of pairs not held together mechanically
Two elements that permit relative motion
Broken belt
Broken belt and its adjacent belts
All the belts
There is no need of changing any one as remaining belts can take care of transmission of load
Knife edge follower
Flat faced follower
Spherical faced follower
Roller follower
2ECS
ECS/2
2ECS²
2E²CS
Worm and worm wheel
Spur gears
Bevel gears
Hooke's joint
Dead weight governor
Pendulum type governor
Spring loaded governor
Inertia governor
Watt governor
Porter governor
Pickering governor
Hartnell governor
Sum
Difference
Product
Ratio
Slider crank mechanism
Four bar chain mechanism
Quick return motion mechanism
All of these
Equal to
Directly proportional to
Inversely proportional to
Independent of
Tension in the tight side of the belt
Tension in the slack side of the belt
Sum of the tensions on the tight side and slack side of the belt
Average tension of the tight side and slack side of the belt
12
16
25
32
Parallel to each other
Perpendicular to each other
Inclined at 45°
Opposite to each other
Below the critical speed
Near the critical speed
Above the critical speed
None of these
Mean speed to the maximum equilibrium speed
Mean speed to the minimum equilibrium speed
Difference of the maximum and minimum equilibrium speeds to the mean speed
Sum of the maximum and minimum equilibrium speeds to the mean speed
Rack and pinion
Worm and wheel
Spiral gears
None of the above
ωR cosθ
ω(R - r₁) cosθ
ω(R - r₁) sinθ
ωr₁ sinθ
Theory of machines
Applied mechanics
Mechanisms
Kinematics
Simple gear train
Compound gear train
Reverted gear train
None of the above
Because of difficulty in manufacturing cam profile
Because of loose contact of follower with cam surface
In order to have acceleration in beginning and retardation at the end of stroke within the finite limits
Because the uniform velocity motion is a partial parabolic motion
Natural frequency of vibration
Position of balancing weights
Moment of inertia
Centripetal acceleration
Balancing partially revolving masses
Balancing partially reciprocating masses
Best balancing of engines
All of these
A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing
A thick film of lubricant between the journal and the bearing
No lubricant between the journal and the bearing
A forced lubricant between the journal and the bearing