Thread
Middle
Shank
Head
A. Thread
10 times
5 times
15 times
20 times
Initial tension
External load applied
Sum of the initial tension and external load applied
Initial tension or external load, whichever is greater
Ductile material
Brittle material
Elastic material
Hard material
Both ends hinged
Both ends fixed
One end fixed and the other end hinged
One end fixed and the other end free
Bending stress
Shear stress
Tensile stress
Bearing stress
45 to 60 %
63 to 70 %
70 to 83 %
80 to 90 %
Heavier
Lighter
Moderate
None of these
0.75/ (0.75 + √v)
3/ (3 + v)
4.5/ (4.5 + v)
6/ (6 + v)
2000-3000 kg/m²
3000-4000 kg/cm²
4000-4500 kg/cm²
7500-10,000 kg/cm²
Less than 50 %
More than 50 %
Equal to 50 %
None of these
Be across threaded portion of shank
Be parallel to axis of bolt
Be normal to threaded portion of shank
Never be across the threaded portion
4
6
8
10
Longitudinal stress
Shear stress
Circumferential stress
None of these
3 mm
5 mm
10 mm
20 mm
Master leaf
Lower leaf
Upper leaf
None of these
Lower critical temperature
Upper critical temperature
Recrystallisation temperature
None of these
A key is used as a temporary fastening
A key is subjected to tensile stresses
A key is always inserted parallel to the axis of the shaft
A key prevents relative motion between the shaft and boss of the pulley
Equal to
Twice
Three times
Four times
Screw cutting lathes
Feed mechanisms
Spindles of bench vices
Railway carriage couplings
Elliptical cross-section
Major axis in plane of rotation
Major axis twice the minor axis
All the three characteristics
Normal pitch
Axial pitch
Diametral pitch
Module
Surface
Just below the surface
Within the core
None of the above
Parallel
Perpendicular
Both A and B
None of these
Knife edge follower
Flat faced follower
Spherical faced follower
Roller follower
Addendum circle
Dedendum circle
Pitch circle
Clearance circle
Bolt
Tap bolt
Stud
None of these
2/8
8/2
4/8
8/4
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
White metal
Silicon bronze
Monel metal
Phosphor bronze
Equal to
sinα times more than
sinα times less than
cosecα times more than