Parallel
Perpendicular
Both A and B
None of these
B. Perpendicular
Base circle
Pitch circle
Prime circle
Pitch curve
Lower critical temperature
Upper critical temperature
Recrystallisation temperature
None of these
Effective tension is equal to centrifugal tension
Effective tension is half of centrifugal tension
Driving tension on slack side is equal to centrifugal tension
Driving tension on tight side is twice the centrifugal tension
l/2
l/√2
l
2 l
Angular bevel gears
Crown bevel gears
Internal bevel gears
Mitre gears
Measure forces
Apply forces
Store energy
All of these
Hollow saddle key
Hollow key
Soft key
None of these
Short bearing
Long bearing
Medium bearing
Square bearing
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 two parts
Similar to stud
Pitch circle diameter × cosφ
Addendum circle diameter × cosφ
Clearance circle diameter × cosφ
Pitch circle diameter × sinφ
Cold working
Shot peening
Grinding and lapping surface
Hot working
Elliptical cross-section
Major axis in plane of rotation
Major axis twice the minor axis
All the three characteristics
7.5 kN
10.6 kN
15 kN
22.5 kN
Straining
Fatigue
Creep
Sudden loading
X-axis as neutral axis
Y-axis as neutral axis
X-axis or Y-axis as neutral axis
Z-axis
Crimped
Honed
Flared
Bent
External load applied
Initial tension due to tightening of the bolt
Relative elastic yielding of the bolt and the connected members
All of the above
60°
55°
47°
29°
Load lifted to the effort applied
Mechanical advantage to the velocity ratio
Load arm to the effort arm
Effort arm to the load arm
Very serious in brittle materials and less serious in ductile materials
Very serious in ductile materials and less serious in brittle materials
Equally serious in both types of materials
Seriousness would depend on other factors
Nil or lightest
Maximum
Average
Any one of the above
Initial tension
External load applied
Sum of the initial tension and external load applied
Initial tension or external load, whichever is greater
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
Same
Higher
Lower
None of these
4
6
8
10
Belt velocity
Initial belt tension
Arc of contact
All of the above
Medium series whose bore is 5 mm
Medium series whose bore is 25 mm
Light series whose bore is 25 mm
Light series whose bore is 5 mm
Spur gearing
Helical gearing
Bevel gearing
Spiral gearing
Square threads
Multiple threads
Acme threads
Buttress threads
Electroplating
Polishing
Coating
Shot peening