RIGGING EQUIPMENT AND HARDWARE
QUESTIONS WITH 100% CORRECT
ANSWERS [ GRADED A+]
Plane bore sheave - ✔✔For intermittent service made of cast-iron in frequently
oiled
Roller brushed sheaves - ✔✔For intermittent service periodically lubricated with
heavy grease
Self lubricating bronze bushing - ✔✔For severe service or where the block cannot
be frequently lubricated
Roller bearing sheaves - ✔✔Made with ground rollers for medium duty service
and high speed operation
Precision anti-friction bearings - ✔✔For high speed and heavy loads
Most blocks used in rigging can be square reeves in patterns - ✔✔2
A shackle should be replaced when the crown or pins are worn - percent or more
- ✔✔10
Tapped holes created for screwed in eye bolts should have a minimum depth of -
times the bolt diameter - ✔✔1 1/2
If a single wire in a 6x19 wire rope sling breaks the sling loses - percent of its
strength - ✔✔1
When the eyes of a web sling are sewn at right angles to the plane of the sling
body the sling is called a - sling - ✔✔Twisted -eye
Chains must never be used for - ✔✔Routine lifting operations
Chains should be destroyed after - annealings - ✔✔6
I beams are also known as - shapes - ✔✔S
QUESTIONS WITH 100% CORRECT
ANSWERS [ GRADED A+]
Plane bore sheave - ✔✔For intermittent service made of cast-iron in frequently
oiled
Roller brushed sheaves - ✔✔For intermittent service periodically lubricated with
heavy grease
Self lubricating bronze bushing - ✔✔For severe service or where the block cannot
be frequently lubricated
Roller bearing sheaves - ✔✔Made with ground rollers for medium duty service
and high speed operation
Precision anti-friction bearings - ✔✔For high speed and heavy loads
Most blocks used in rigging can be square reeves in patterns - ✔✔2
A shackle should be replaced when the crown or pins are worn - percent or more
- ✔✔10
Tapped holes created for screwed in eye bolts should have a minimum depth of -
times the bolt diameter - ✔✔1 1/2
If a single wire in a 6x19 wire rope sling breaks the sling loses - percent of its
strength - ✔✔1
When the eyes of a web sling are sewn at right angles to the plane of the sling
body the sling is called a - sling - ✔✔Twisted -eye
Chains must never be used for - ✔✔Routine lifting operations
Chains should be destroyed after - annealings - ✔✔6
I beams are also known as - shapes - ✔✔S
