Tip of the pinion and flank of gear
Tip of the gear and flank of pinion
Flanks of both gear and pinion
Tip of both gear and pinion
B. Tip of the gear and flank of pinion
Shoe brake
Band and block brake
Band brake
Internal expanding brake
Bolts and nuts
Studs
Headless taper bolts
None of these
Needle roller bearings
Tapered roller bearings
Spherical roller bearings
Cylindrical roller bearings
Woodruff key
Feather key
Flat saddle key
Hollow saddle key
Direction of twist of wires in strands is opposite to the direction of twist of strands
Direction of twist of wires and strands are same
Wires in two adjacent strands are twisted in opposite direction
Wires are not twisted
Tolerance grade for the hole is 6 and for the shaft is 5
Tolerance grade for the shaft is 6 and for the hole is 5
Tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7
Tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7
Mild steel
High speed steel
Stainless steel
Aluminium
Low efficiency
High efficiency
High load lifting capacity
High mechanical advantage
Increases
Decreases
Remains unchanged
None of these
340 to 360
420 to 450
More than 400
300 to 320
(π/4) d² × τ × n
1.875 × (π/4) d² × τ × n
2 × (π/4) d² × τ × n
3 × (π/4) d² × τ × n
Increases linearly
Decreases linearly
Remains same
Increases exponentially
Remains constant at all speeds
Is minimum at zero speed and increases monotonically with increase in speed
Is maximum at zero speed and decreases monotonically with increase in speed
Becomes minimum at an optimum speed and then increases with further increase in speed
Neutral surface
Upper surface
Lower surface
None of these
Metric threads of 33 numbers in 2 cm
Metric threads with cross-section of 33 mm
Metric threads of 33 mm outside diameter and 2 mm pitch
Bolt of 33 mm nominal diameter having 2 threads per cm
Regain its original shape after deformation when the external forces are removed
Draw into wires by the application of a tensile force
Resist fracture due to high impact loads
Retain deformation produced under load permanently
Constant period
Fixed period
Dwell period
Idle period
4430 mm as diameter of small pulley
4430 mm as nominal pitch length
4430 mm as diameter of large pulley
4430 mm as centre distance between pulleys
Spindles of bench vices
Railway carriage couplings
Feed mechanism of machine tools
Screw cutting lathes
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
1 in 5
1 in 10
1 in 24
1 in 40
90
60
120
100
Working depth
Clearance
Backlash
Face width
4
6
8
10
Maximum stress to the endurance limit
Nominal stress to the endurance limit
Maximum stress to the nominal stress
Nominal stress to the maximum stress
Elastic limit
Ultimate tensile strength
Young's modulus
Endurance limit
Woodruff key
Feather key
Gib-head key
Tangent key
Gd⁴/ 8D3n
Gd3/ 8D3n
Gd⁴/ 4D3n
Gd⁴/ 8D²n
10 m/s
12.5 m/s
15 m/s
20 m/s
Lame's equation
Birnie's equation
Clavarinos' equation
All of these