(WD/ πd3) × K
(2WD/ πd3) × K
(4WD/ πd3) × K
(8WD/ πd3) × K
D. (8WD/ πd3) × K
Same time to reach earth
Times proportional to weight to reach earth
Times inversely proportional to weight to reach earth
None of the above
Circular pitch
Diametral pitch
Module
None of these
Square threads
Multiple threads
Acme threads
Buttress threads
Brittle materials
Ductile materials
Elastic materials
Plastic materials
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
Right hand
Left hand
Both A and B
None of these
45 to 60 %
63 to 70 %
70 to 83 %
80 to 90 %
Socket joint
Nipple joint
Union joint
Spigot and socket joint
Mild steel
High speed steel
Stainless steel
Aluminium
A taper key which fits half in the key way of hub and half in the key way of shaft
A taper key which fits in a key way of the hub and is flat on the shaft
A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft
Provided in pairs at right angles and each key is to withstand torsion in one direction only
A parallel sunk key is a taperless key
A parallel sunk key may be rectangular or square in cross-section
A flat saddle key is a taper key which fits in a key way of the hub and is flat on the shaft
All of the above
Power transmitted increases
Power transmitted decreases
Power transmitted increases to a maximum value and then decreases
Power transmitted remains the same
Tension
Shear
Compression
All of the above
Along the axis of rotation
Parallel to the axis of rotation
Perpendicular to the axis of rotation
In any direction
Module
Tooth profile
Both module and pitch line velocity
Pitch line velocity
Less than
Equal to
More than
None of these
Increases markedly
Decreases markedly
Remain same
Depends on heat treatment carried out
Is just sufficient to hold parts together
Approaches yield point
Is 50% of yield point
Is about yield point divided by safety factor
Lighter and easier to handle
Greater shock absorption
Smoother inside walls
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
Self locking bolt
Same as stud
Provided with hexagonal depression in head
Used in high speed components
Zero film bearing
Boundary lubricated bearing
Hydrodynamic lubricated bearing
Hydrostatic lubricated bearing
Dynamic loading
Static loading
Combined static and dynamic loading
Completely reversed loading
More
Less
Same
None of these
d = t
d = 1.6 t
d = 2t
d = 6t
They are cheap
They can work at high temperature
They are unaffected by moisture and humidity
None of the above
Dependent on number of teeth of a gear
Dependent on system of teeth
Independent of size of teeth
All of these
Bottom side only
Top side only
On both sides
Any side
A member made of steel will generally be more rigid than a member of equal load carrying ability made of cast iron
A member made of cast iron will generally be more rigid than a member of equal load carrying ability made of steel
Both will be equally rigid
Which one is rigid will depend on several other factors
Does not change
Increases
Decreases
None of the Above