0.2
0.25
0.50
0.6
B. 0.25
Shoe brake
Band and block brake
Band brake
Internal expanding brake
50°C above upper critical temperature
50°C below upper critical temperature
50°C above lower critical temperature
50°C below lower critical temperature
Surface
Just below the surface
Within the core
None of the above
Hollow saddle key
Hollow key
Soft key
None of these
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
Effect of temperature on belt
Material of belt
Unequal extensions in the belt due to tight and slack side tensions
Stresses beyond elastic limit of belt material
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
Addendum circle
Dedendum circle
Pitch circle
Clearance circle
Major diameter
Minor diameter
Pitch diameter
Core diameter
Heavier
Lighter
Moderate
None of these
First type
Second type
Third type
Any one of these
εc + 2εl
2εc + εl
εc + εl²
εc² + εl
Same
Double
One-half
One-fourth
Knuckle threads
Square threads
Acme threads
Buttress threads
Increasing its shank diameter
Increasing its length
Decreasing its shank diameter
Decreasing its length
Elliptical cross-section
Major axis in plane of rotation
Major axis twice the minor axis
All the three characteristics
√(Pmax / 2m)
√(Pmax / 3m)
√(Pmax / m)
√(3m /Pmax) Where m = mass of belt per metre (kg/m) Pmax = maximum permissible tension in belt (N)
Parallel
Perpendicular
Both A and B
None of these
T/2
T
2T
4T
Whose upper deviation is zero
Whose lower deviation is zero
Whose lower as well as upper deviations are zero
Does not exist
In a direction perpendicular to the cam axis
In a direction parallel to the cam axis
In any direction irrespective of cam axis
Along the cam axis
Spindles of bench vices
Railway carriage couplings
Feed mechanism of machine tools
Screw cutting lathes
Initial tension
External load applied
Sum of the initial tension and external load applied
Initial tension or external load, whichever is greater
40°
122°
136°
152°
Pan Head
Snap head
Counter sunk head
Conical head
Mild steel
Dead mild steel
Medium carbon steel
High carbon steel
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
T₁/T₂ = μθ × n
T₁/T₂ = (μθ)n
T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n
T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n
0.75/ (0.75 + √v)
3/ (3 + v)
4.5/ (4.5 + v)
6/ (6 + v)
(k₁ k₂)/ (k₁ + k₂)
(k₁ - k₂)/ (k₁ + k₂)
(k₁ + k₂)/ (k₁ k₂)
(k₁ - k₂)/ (k₁ k₂)