Shaft B is better than shaft A
Shaft A is better than shaft B
Both the shafts are equally good
None of these
A. Shaft B is better than shaft A
Cold working
Shot peening
Grinding and lapping surface
Hot working
Muff coupling
Compression coupling
Flange coupling
All of these
Brittle materials
Ductile materials
Elastic materials
Plastic materials
The effect of curvature of the cylinder wall is neglected
The tensile stresses are uniformly distributed over the section of the walls
The effect of the restraining action of the heads at the end of the pressure vessel is neglected
All of the above
Is just sufficient to hold parts together
Approaches yield point
Is 50% of yield point
Is about yield point divided by safety factor
First type
Second type
Third type
Any one of these
K
K/2
2K
K/4
Belt velocity
Initial belt tension
Arc of contact
All of the above
0.4 times
0.6 times
0.7 times
0.8 times
A taper key which fits half in the key way of hub and half in the key way of shaft
A taper key which fits in a key way of the hub and is flat on the shaft
A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft
Provided in pairs at right angles and each key is to withstand torsion in one direction only
Larger than
Smaller than
Equal to
None of these
Is directly proportional to
Is inversely proportional to
Is equal to cos φ multiplied by
Does not depend upon
Constant period
Fixed period
Dwell period
Idle period
Single
Double
Triple share
None of these
Determining brittleness
Protecting metal against corrosion
Protecting metal against wear and tear
Experimental stress analysis
Higher
Lower
Same
None of these
Along the axis of rotation
Parallel to the axis of rotation
Perpendicular to the axis of rotation
In any direction
Leather
Rubber
Cotton duck
Balata gum
Ductile materials
Brittle materials
Elastic materials
All of the above
Module
Tooth profile
Both module and pitch line velocity
Pitch line velocity
Plasticity
Elasticity
Ductility
Malleability
Partially
Fully
Either A or B
None of these
Increasing velocity ratio
For applying tension
Changing the direction of motion of belt
All of these
Gd⁴/ 8D3n
Gd3/ 8D3n
Gd⁴/ 4D3n
Gd⁴/ 8D²n
The oil film pressure is generated only by the rotation of the journal
The oil film is maintained by supplying oil under pressure
Do not require external supply of lubricant
Grease is used for lubrication
10° to 15°
15° to 20°
20° to 35°
35° to 50°
Foundation purposes
Absorbing shock and vibrations
Transmission of power
Lifting and transportation of machines and cubicles
Surface of the top of the tooth
Surface of the tooth above the pitch surface
Width of the tooth measured along the pitch circle
Surface of the tooth below the pitch surface
Has a head on one end and a nut fitted to the other
Has head at one end and other end fits into a tapped hole in the other part to be joined
Has both the ends threaded
Is provided with pointed threads
1100 to 1300°C
1300 to 1500°C
500 to 600°C
700 to 900°C