1. right hand with same pitch
2. left hand with same pitch
3. could be left or right hand
4. right hand with fine pitch
left hand with same pitch
1. 1 in 5
2. 1 in 10
3. 1 in 24
4. 1 in 40
1 in 24
1. metric
2. buttress
3. acme
4. square
buttress
1. 3 mm
2. 5 mm
3. 10 mm
4. 20 mm
3 mm
1. metric
2. square
3. buttress
4. acme
acme
1. cotter joint
2. bolted joint
3. knuckle joint
4. universal coupling
knuckle joint
1. one smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
2. a slot is cut partly in middle of nut and then slot reduced by tightening screw
3. a hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
4. through slots are made at top and a cotter-pin is passed through these and a hole in the bolt, and cotter pin split and bent in reverse direction at the other end
a slot is cut partly in middle of nut and then slot reduced by tightening screw
1. on both the sides
2. on one side only
3. on none of the sides
4. may be provided anywhere
on one side only
1. provide cooling action
2. lubricate the dies
3. help remove chips
4. all of the above
all of the above
1. flaring
2. brazing
3. soft soldering
4. fusion welding
brazing