Varies linearly
Is uniform throughout
Varies exponentially, being more near the torque-input end
Varies exponentially, being less near the torque-input end
C. Varies exponentially, being more near the torque-input end
The cold rolled shafting is stronger than hot rolled shafting
The hot rolled shafting is stronger than cold rolled shafting
The cold rolled and hot rolled shaftings are equally strong
The shafts are not made by rolling process
Decreasing the cross-section area of bar
Increasing the cross-section area of bar
Remain unaffected with cross-section area
Would depend upon other factors
Minor diameter
Major diameter
Pitch diameter
None of these
Surface of the top of the tooth
Surface of the tooth above the pitch surface
Surface of the tooth below the pitch surface
Width of the tooth measured along the pitch circle
Torque in each shaft is the same
Shear stress in each shaft is the same
Angle of twist of each shaft is the same
Torsional stiffness of each shaft is the same
2
4
8
16
Nickel
Chromium
Nickel and chromium
Cobalt and molybdenum
√(Pmax / 2m)
√(Pmax / 3m)
√(Pmax / m)
√(3m /Pmax) Where m = mass of belt per metre (kg/m) Pmax = maximum permissible tension in belt (N)
Bevel gearing
Helical gearing
Worm gearing
None of these
Woodruff key
Feather key
Flat saddle key
Gib head key
Always in single shear
Always in double shear
Either in single shear or double shear
Any one of these
Brittle materials
Ductile materials
Elastic materials
Plastic materials
Heavier
Lighter
Moderate
None of these
One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
A slot is cut partly in middle of nut and then slot reduced by tightening a screw
Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip
Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end
Stiffness
Ductility
Resilience
Plasticity
T₁ - T₂ + Tc
T₁ + T₂ + Tc
(T₁ - T₂ + Tc)/2
(T₁ + T₂ + Tc)/2
l/2
l/√2
l
2 l
Has a head on one end and a nut fitted to the other
Has head at one end and other end fits into a tapped hole in the other part to be joined
Has both the ends threaded
Has pointed threads
Margin
Pitch
Back pitch
Diagonal pitch
d.t.τu
πd.t.τu
π/4 × d².τu
π/4 × d² × t.τu
Pitch circle to the top of a tooth
Pitch circle to the bottom of a tooth
Top of a tooth to the bottom of a tooth
Addendum circle to the clearance circle
T₁/T₂ = μθ
log (T₁/T₂) = μθ
T₁/T₂ =eμθ
T₁/T₂ = log μθ
Euler's formula
Rankine's formula
Johnson's straight line formula
Johnson's parabolic formula
Increase the key length
Increase the key depth
Increase the key width
Decrease the key length
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
Provided with detachable caps
Butt weld
Fillet weld
Sleeve weld
Socket weld
Have contact at the bottom most of the bearing
Move towards right of the bearing making no metal to metal contact
Move towards right of the bearing making the metal to metal contact
Move towards left of the bearing making metal to metal contact
Pressure angle
Pitch circle diameter
Circular pitch
Diametral pitch
Increases
Decreases
Remains unchanged
None of these
Major diameter
Minor diameter
Pitch diameter
Core diameter