Tensile stress
Compressive stress
Shear stress
None of these
C. Shear stress
Diameter of both the shafts is same
Angle of twist of both the shafts is same
Material of both the shafts is same
Twisting moment of both the shafts is same
10
15
20
25
Half
Same
Double
None of the above
At bottom
At sides only
Both at bottom and sides
Could touch anywhere
[(√P1 + √P2)/2]²
P1 + P2
2 × (P1 + P2)
[2 × (P1 + P2)] + Pc Where Pc is centrifugal tension
Shaft B is better than shaft A
Shaft A is better than shaft B
Both the shafts are equally good
None of these
Plasticity
Elasticity
Ductility
Malleability
Minor diameter
Major diameter
Pitch diameter
None of these
Maximum stress to the endurance limit
Nominal stress to the endurance limit
Maximum stress to the nominal stress
Nominal stress to the maximum stress
Elliptical cross-section
Major axis in plane of rotation
Major axis twice the minor axis
All the three characteristics
Single
Double
Triple share
None of these
2WD3n/Gd⁴
4WD3n/Gd⁴
8WD3n/Gd⁴
16WD3n/Gd⁴
Addendum circle
Dedendum circle
Pitch circle
Clearance circle
Welding
Pre-casting
Riveting
Casting
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
Effective
Smallest
Largest
None of these
0.2
0.25
0.50
0.6
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
Heavy load
Loose belt
Driving pulley too small
Any one of the above
Intersecting and the teeth are curved
Non-intersecting and nonparallel and the teeth are curved
Non-intersecting and non-parallel and the teeth are straight
None of the above
(Kf + 1)/ (Kt + 1)
(Kf - 1)/ (Kt - 1)
(Kt + 1)/ (Kf + 1)
(Kt - 1)/ (Kf - 1)
8
6
4
2
The pitch of the thread is 24 mm and depth is 2 mm
Cross-sectional area of the threads is 24 mm²
The nominal diameter of bolt is 24 mm and pitch is 2 mm
The effective diameter of bolt is 24 mm and there are 2 threads per cm
p.d.σt
p.t.σt
(p - d) σt
(p - d) t.σt
Initial tension
External load applied
Sum of the initial tension and external load applied
Initial tension or external load, whichever is greater
60°
55°
47°
29°
p = D sin (90°/T)
p = D sin (120°/T)
p = D sin (180°/T)
p = D sin (360°/T)
Joint may not open up
Bolts are weakest elements
The resultant load on the bolt would not be affected by the external cyclic load
Bolts will not loosen during service
Directly proportional to the polar moment of inertia and to the distance of the point from the axis
Directly proportional to the applied torque and inversely proportional to the polar moment of inertia
Directly proportional to the applied torque and the polar moment of inertia
Inversely proportional to the applied torque and the polar moment of inertia
Bending moment only
Twisting moment only
Combined bending moment and twisting moments
Combined action of bending moment, twisting moment and axial thrust