A round bar in a round hole form a turning pair
A square bar in a square hole form a sliding pair
A vertical shaft in a foot step bearing forms a successful constraint
All of the above
C. A vertical shaft in a foot step bearing forms a successful constraint
0°
90°
180°
360°
α = 45° + φ/2
α = 45° - φ/2
α = 90° + φ
α = 90° - φ
ω² × OQ
ω² × OQ sinθ
ω² × OQ cosθ
ω² × OQ tanθ
(1/2π). √(kG/g)
(1/2π). √(2kG/g)
2π. √(kG/g)
2π. √(2kG/g)
Less sensitive
More sensitive
Unaffected of sensitivity
Isochronous
Shear stress
Bending stress
Tensile stress
Compressive stress
Offset between centre lines of cam and follower
Lift of follower
Angle of ascent
All of the above
10° to 20°
20° to 30°
30° to 40°
60° to 80°
None of the links is fixed
One of the links is fixed
Two of the links are fixed
None of these
Less
More
Equal
May be less or more depending on efficiency
30° V-engine
60° V-engine
120° V-engine
150° V-engine
2 links and 3 turning pairs
3 links and 4 turning pairs
4 links and 4 turning pairs
5 links and 4 turning pairs
m.ω².r sinθ
m.ω².r cosθ
m.ω².r (sin 2θ/n)
m.ω².r (cos 2θ/n)
Pitch circle
Base circle
Prime circle
Outer circle
Hammer blow
Swaying couple
Variation in tractive force along the line of stroke
All of the above
Radial component only
Tangential component only
Coriolis component only
Radial and tangential components both
All points of the disc have the same velocity
The centre of the disc has zero acceleration
The centre of the disc has centrifugal acceleration
The point on the disc making contact with the plane surface has zero acceleration
Remain in the same place for all configurations of the mechanism
Vary with the configuration of the mechanism
Moves as the mechanism moves, but joints are of permanent nature
None of the above
Straight line
Circle
Ellipse
Parabola
The addendum is less than the dedendum
The pitch circle diameter is the product of module and number of teeth
The contact ratio means the number of pairs of teeth in contact
All of the above
To raise the bow and stern
To lower the bow and stern
To raise the bow and lower the stern
To raise the stern and lower the bow
Pitch circle dia. × cosφ
Addendum circle dia. × cosφ
Clearance circle dia. × cosφ
Pitch circle dia. × sinφ
n/2
n
n - 1
n(n - 1)/2
Whitworth quick return mechanism
Hand pump
Oscillating cylinder engine
All of the above
Linear displacement
Rotational motion
Gravitational acceleration
Tangential acceleration
Perpendicular to the acceleration force
Along the direction of acceleration force
Opposite to the direction of acceleration force
None of the above
Intersecting and coplanar shafts
Nonintersecting and non-coplanar shafts
Parallel and coplanar shafts
Parallel and non-coplanar shafts
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
Rack and pinion
Worm and wheel
Spiral gears
None of the above
Zero
One
π/2
π