[(√P1 + √P2)/2]²
P1 + P2
2 × (P1 + P2)
[2 × (P1 + P2)] + Pc Where Pc is centrifugal tension
A. [(√P1 + √P2)/2]²
p = D sin (90°/T)
p = D sin (120°/T)
p = D sin (180°/T)
p = D sin (360°/T)
Ductile material
Brittle material
Elastic material
Hard material
Elastic strength
Yield strength
Shear strength
None of these
Self locking bolt
Same as stud
Provided with hexagonal depression in head
Used in high speed components
Elastic limit
Strain
Factor of safety
Bulk modulus
1100 to 1300°C
1300 to 1500°C
500 to 600°C
700 to 900°C
Dynamic loading
Static loading
Combined static and dynamic loading
Completely reversed loading
Same
Coarser
Finer
Very fine
Neutral surface
Upper surface
Lower surface
None of these
Initial tension
External load applied
Relative elastic yielding (springness) of the bolt and the connected member
All of the above
Increasing the initial tension in the belt
Dressing the belt to increase the coefficient of friction
Increasing wrap angle by using idler pulley
All of the above methods
Variation in properties of material from point to point in a member
Pitting at points or areas at which loads on a member are applied
Abrupt change of section
All of the above
Only the broken belt is replaced
The entire set of belts is replaced
The broken belt and the belt on either side of it, is replaced
The broken belt need not to be replaced
Load is in between the fulcrum and effort
Effort is in between the fulcrum and load
Fulcrum is in between the load and effort
None of these
Eutectoid steel
Hypereutectoid steel
Hypo-eutectoid steel
None of these
0.20
0.35
0.50
0.65
Bondability
Embeddability
Comformability
Fatigue strength
Gd⁴/ 8D3n
Gd3/ 8D3n
Gd⁴/ 4D3n
Gd⁴/ 8D²n
Both ends hinged
Both ends fixed
One end fixed and the other end hinged
One end fixed and the other end free
The distance from a point on one thread to the corresponding point on the next thread is called pitch
The distance which a screw thread advances axially in one rotation of the nut is called lead
In single start threads, lead is equal to pitch
All of the above
Pitch circle to the top of a tooth
Pitch circle to the bottom of a tooth
Top of a tooth to the bottom of a tooth
Addendum circle to the clearance circle
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
Handle of a hand pump
Hand wheel of a punching press
Lever of a loaded safety valve
A pair of tongs
Longitudinal stress
Hoop stress
Longitudinal and hoop stress
None of these
Ratio of coil diameter to wire diameter
Load required to produce unit deflection
Its capability of storing energy
Indication of quality of spring
In decreasing the slip of the belt
In increasing the slip of the belt
To keep the belt in centre on a pulley while it is in motion
To increase pulley life
Brittle materials
Ductile materials
Brittle as well as ductile materials
Elastic materials
More than 50 %
Less than 50 %
Equal to 50 %
None of these
Leather
Rubber
Canvas or cotton duck
Balata gum
10 times
5 times
15 times
20 times