Turning pair
Screw pair
Belt and pulley
None of the above
C. Belt and pulley
tan (α + φ)/tanα
tanα/tan (α +φ)
tan (α - φ)/tanα
tanα/tan (α - φ)
No node
One node
Two nodes
Three nodes
Cylinder and piston
Piston rod and connecting rod
Crankshaft and flywheel
Flywheel and engine frame
Cylindrical pair
Turning pair
Rolling pair
Sliding pair
The former is mathematically accurate
The former is having turning pair
The former is most economical
The former is most rigid
Cross head
Slider crank
Connecting rod
Gudgeon pin
The difference between the maximum and minimum energies is called maximum fluctuation of energy
The coefficient of fluctuation of speed is the ratio of maximum fluctuation of speed to the mean speed
The variations of energy above and below the mean resisting torque line is known as fluctuation of energy
None of the above
Addendum circle
Dedendum circle
Pitch circle
Clearance circle
(Length of the path of approach)/(Circular pitch)
(Length of path of recess)/(Circular pitch)
(Length of the arc of contact)/(Circular pitch)
(Length of the arc of approach)/cosφ
Below the critical speed
Near the critical speed
Above the critical speed
None of these
Bolt and nut
Lead screw of a lathe
Ball and socket joint
Ball bearing and roller bearing
The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another
The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only
A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work
All of the above
Straight line path
Hyperbolic path
Parabolic path
Elliptical path
Shear stress
Bending stress
Tensile stress
Compressive stress
sin (θ + φ) + 1/ cos (θ - φ) + 1
cos (θ - φ) + 1/ sin (θ + φ) + 1
cos (θ + φ) + 1/ cos (θ - φ) + 1
cos (θ - φ) + 1/ cos (θ + φ) + 1
D/T
T/D
2D/T
2T/D
Pitch circle dia. × cosφ
Addendum circle dia. × cosφ
Clearance circle dia. × cosφ
Pitch circle dia. × sinφ
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°
45°
90°
135°
180°
Circular pitch
Diametral pitch
Module
None of these
Oldham's coupling
Elliptical trammel
Scotch yoke mechanism
All of these
Completely constrained motion
Incompletely constrained motion
Successfully constrained motion
None of these
m₁r₂ = m₂r₁
m₁r₁ = m₂r₂
m₁m₂ = r₁r₂
None of these
The friction force is dependent on the materials of the contact surfaces.
The friction force is directly proportional to the normal force.
The friction force is independent of me area of contact.
All of the above
Two elements held together mechanically
Two elements having relative motion
Two elements having Coriolis component
Minimum of two instantaneous centres
Be zero
Act in upward direction
Act in downward direction
None of these
2
3
4
5
0.4985/ √δS
0.5615/ √δS
0.571/ √δS
0.6253/ √δS
Screw pair
Spherical pair
Turning pair
Sliding pair
Simple gear train
Reverted gear train
Sun and planet gear
Differential gear