Rigging 110101e

Question 1

A right lay rope has:

Answer 1

STRANDS twisted to the RIGHT , YARNS twisted to the LEFT.

Question 2

The strongest synthetic fibre rope is:

Answer 2

Nylon

Question 3

Safe working load is the:

Answer 3

breaking strength divided by the safety factor.

Question 4

The type of knot or bend used for tying two ropes of different diameters together is the:

Answer 4

Sheet bend

Question 5

A knot in a rope:

Answer 5

decreases the rope strength by 50%.

Question 6

How is a fist grip clip different than a wire rope clip?

Answer 6

The fist grip clip has two identical components.

Question 7

Why is a thimble used in an eye on a wire rope sling?

Answer 7

The thimble helps prevent premature wear of the slings eye.

Question 8

How many wire rope clips are recommended to be applied to a 1” diameter wire rope to make an eye in the rope.

Answer 8

4

Question 9

How is the lifting capacity of a synthetic fibre round sling identified?

Answer 9

by a colour-coded, non-loadbearing cover placed over the sling

Question 10

When are shoulderless eyebolts used?

Answer 10

for vertical hoists only

Question 11

The type of chain hoist most suitable for a horizontal pull is the:

Answer 11

Come-along

Question 12

When two blocks are connected by rope, they become a machine, commonly known as a

Answer 12

Block and Tackle System

Question 13

Why must a crane be set up as level as possible?

Answer 13

so the lifting capacity of the crane is not affected

Question 14

What is used to increase a crane’s stability?

Answer 14

outriggers

Question 15

A crane is capable of the heaviest lifts when its boom is very near to horizontal.

Answer 15

False

Question 16

_____ is the bringing together of various lifting devices to raise or lower materials or equipment

Answer 16

Rigging

Question 17

_____ ropes can be made from manila, sisal, coton or coir

Answer 17

Natural Fibre

Question 18

Safety use and storage of rope:
Avoid overloading by following a safety factor of

Answer 18

5:1 or 10:1

Question 19

_____ knot is used for hoisting safety lines and for hitching around posts and rings because it is easy to tie and untie

Answer 19

Bowline

Question 20

_____ knot is used for tying two rope ends that are of equal diameter

Answer 20

Figure of Eight

Question 21

_____ knot is used to shorten up excessively long ropes that may pose a tripping hazard if left alone.

Answer 21

Sheepshank

Question 22

_____ are hardware components that are used to fasten loads to hoisting equipment for purpose of safety moving loads

Answer 22

Slings

Question 23

_____ are made from carbon steel or stainless steel laid around an independent wire rope core.

Answer 23

Wire Rope Slings

Question 24

Slings should not be used at angles less than

Answer 24

60 degrees

Question 25

When a lift is required that involves a high probability of damage to building, equipment, or personnel if the rigging components were to fail, the safety factor must be increased to

Answer 25

10:1

Question 26

_____ are used to lift loads in a straight-line vertical position.

Answer 26

Chain Hoists

Question 27

_____ also known as Griphoist is a hand operated cable which that uses a draw vice design and permits unlimited wire rope travel

Answer 27

Tirfor winch

Question 28

_____ is used to change the direction of pull on a wire rope.

Answer 28

Snatch Block

Question 29

Crane and Hoist Signals: One arm is waved back and forth perpendicular to signalman’s body.

Answer 29

Stop

Question 30

Crane and Hoist Signals: Both arms should be swept out from the body at shoulder height.

Answer 30

Emergency Stop

Question 31

Crane and Hoist Signals: The crook between the thumb and forefingers of each hand should be interlocked of the signaler.

Answer 31

Dog everything (stop all movements)