Fluctuation of energy
Maximum fluctuation of energy
Coefficient of fluctuation of energy
None of these
A. Fluctuation of energy
Perpendicular to sliding surfaces
Along sliding surfaces
Somewhere in between above two
None of the above
Line or point contact
Surface contact
Body contact
None of these
Equal to velocity ratio of a gear train
Reciprocal of velocity ratio of a gear train
Always greater than unity
Always less than unity
During which the follower returns to its initial position
Of rotation of the cam for a definite displacement of the follower
Through which the cam rotates during the period in which the follower remains in highest position
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Turning pair
Screw pair
Belt and pulley
None of the above
Higher pair
Lower pair
Rolling pair
Sliding pair
ωr [sin θ + (sin 2θ/n)]
ωr [cos θ + (cos 2θ/n)]
ω²r [sin θ + (sin 2θ/n)]
ω²r [cos θ + (cos 2θ/n)]
Sliding pair
Rolling pair
Lower pair
Higher pair
Be zero
Act in upward direction
Act in downward direction
None of these
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
Simple
Compound
Binary
None of these
ω
ωr
ω²r
ω/r
Difference of minimum fluctuation of speed and the mean speed
Difference of the maximum and minimum speeds
Sum of maximum and minimum speeds
Variations of speed above and below the mean resisting torque line
(1/2) μ W R
(2/3) μ W R
(3/4) μ W R
μ W R
The algebraic sum of the primary forces must be equal to zero
The algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero
Both (A) and (B)
None of these
Displacement diagram
Velocity diagram
Acceleration diagram
All of the above
± c.m.ω².r
± a (1 - c) m.ω².r
± (a/√2) (1 - c) m.ω².r
± 2a (1 - c) m.ω².r
Simple gear train
Compound gear train
Reverted gear train
Epicyclic gear train
50°-60°
60°-70°
70°-80°
80°-90°
Leads the sliding velocity vector by 90°
Lags the sliding velocity vector by 90°
Is along the sliding velocity vector
Leads the sliding velocity vector by 180°
Above
Below
At
None of these
cosθ = sinα
sinθ = ± tanα
tanθ = ± cosα
cotθ = cosα
tan (α + φ)/tanα
tanα/tan (α +φ)
tan (α - φ)/tanα
tanα/tan (α - φ)
ωv
2ωv
ω²v
2ωv²
Self-closed
Force-closed
Friction closed
None of these
1, 2 and 4
2, 3 and 4
1, 2 and 3
1, 3 and 4
Cylindrical pair
Turning pair
Rolling pair
Sliding pair
Double slider crank chain
Elliptical trammel
Scotch yoke mechanism
All of these
(1/2) μ W R cosecα
(2/3) μ W R cosecα
(3/4) μ W R cosecα
μ W R cosecα
Shaft tends to vibrate in longitudinal direction
Torsional vibrations occur
Shaft tends to vibrate vigorously in transverse direction
Combination of transverse and longitudinal vibration occurs