P1 - P2
P1 + P2
2 × (P1 + P2)
[2 × (P1 + P2)] + Pc Where Pc is centrifugal tension
C. 2 × (P1 + P2)
45 to 60 %
63 to 70 %
70 to 83 %
80 to 90 %
Ratio of coil diameter to wire diameter
Load required to produce unit deflection
Its capability of storing energy
Indication of quality of spring
Addendum
Dedendum
Clearance
Working depth
Straining
Fatigue
Creep
Sudden loading
Increases
Decreases
Remains unchanged
None of these
Less than
Equal to
More than
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
The tension in tight side is twice the centrifugal tension
The tension in slack side is equal to the centrifugal tension
The tension in tight side is thrice the centrifugal tension
None of the above
0.45
0.55
0.65
0.75
Needle roller bearings
Tapered roller bearings
Spherical roller bearings
Cylindrical roller bearings
Brown colour
Yellow colour
White colour
Grey colour
Transmission
Machine
Machine frame
None of these
1
2
3
4
Dun cylinder
Hollow shaft
Solid shaft
Thick cylinder
0.5 times
Equal to
2 times
Double
Over head shaft
Counter shaft
Line shaft
All of these
F + P
F P
P
F
d = t
d = 1.6 t
d = 2t
d = 6t
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
Dynamic loading
Static loading
Combined static and dynamic loading
Completely reversed loading
Bending stress only
A combination of torsional shear stress and bending
Direct shear stress only
A combination of bending stress and direct shear stress
Axial load only
Both radial and axial loads and the ratio of these being greater than unity
Radial load only
Both radial and axial loads and the ratio of these being less than unity
Working depth
Clearance
Backlash
Face width
Actual size and the corresponding basic size
Maximum limit and the basic size
Minimum limit and the basic size
None of the above
(1/2) × √(σ² + 4τ²)
√(σ² + 4τ²)
(1/2) × [σ + √(σ² + 4τ²)]
σ + √(σ² + 4τ²)
It is subjected to a higher cyclic loading than the outer side
It is subjected to a higher stress than the outer side
It is more stretched than the outer side during the manufacturing process
It has a lower curvature than the outer side
Similar to small size tap bolts except that a greater variety of shapes of heads are available
Slotted for a screw driver and generally used with a nut
Used to prevent relative motion between parts
Similar to stud
Heavy load
Loose belt
Driving pulley too small
Any one of the above
Gerber relation
Soderberg relation
Goodman relation
None of these
18% nickel and 8% chromium
18% chromium and 8% nickel
18% nickel and 8% vanadium
18% vanadium and 8% nickel