One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
A slot is cut partly is middle of nut and then slot reduced by tightening a screw
A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed 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 spitted and bent in reverse direction at other end
D. Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin spitted and bent in reverse direction at other end
Surface of the top of the tooth
Surface of the tooth above the pitch surface
Width of the tooth measured along the pitch circle
Surface of the tooth below the pitch surface
Low carbon steel
High carbon steel
Medium carbon steel
High speed steel
Thick lubricated bearings
Plastic bearings
Antifriction bearings
Thin lubricated bearings
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
F/bh
3F/2bh
2F/bh
4F/bh
Ductile material
Brittle material
Elastic material
Hard material
First type
Second type
Third type
Any one of these
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
Welding
Pre-casting
Riveting
Casting
Combined loading
Fatigue
Thermal stresses
Shock loading
Half
Twice
Thrice
None of these
Mild steel
High speed steel
Stainless steel
Aluminium
Increasing velocity ratio
For applying tension
Changing the direction of motion of belt
All of these
1 in 16
1 in 32
1 in 48
1 in 100
Hot piercing
Extrusion
Cold peening
Cold heading
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
Thickness of plates to be riveted
Length of rivet
Diameter of head
Nominal diameter
Half
Same
Double
None of the above
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
Shear stress in each spring will be equal
Load taken by each spring will be half the total load
Only A is correct
Both A and B is correct
29°
55°
47.3°
60°
Power transmitted increases
Power transmitted decreases
Power transmitted increases to a maximum value and then decreases
Power transmitted remains the same
There are four rivets per pitch length, all in double shear
There are four rivets per pitch length, out of which two are in single shear and two are in double shear
There are five rivets per pitch length, all in double shear
There are five rivets per pitch length, out of which four are in double shear and one is in single shear
Prevent the belt from running off the pulley
Increase the power transmission capacity
Increase the belt velocity
Prevent the belt joint from damaging the belt surface
Both ends hinged
Both ends fixed
One end fixed and the other end hinged
One end fixed and the other end free
Tensile stress
Compressive stress
Shear stress
Bending stress
The belt should touch the bottom of groove in the pulley
The belt should not touch the bottom of groove in the pulley
The belt should not touch the sides of groove in the pulley
None of the above
Metric
Square
Buttress
Acme
Uniform velocity
Simple harmonic motion
Uniform acceleration and retardation
Cycloidal motion
Less than
Equal to
More than
None of these