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 fiber rope is?

Answer 2

Nylon

Question 3

Safe working load is the?

Answer 3

Breaking point 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 does what?

Answer 5

Decreases the rope strength by 50 percent

Question 6

What is rigging defined as?

Answer 6

The bringing together of various lifting devices to raise or lower materials or equipment

Question 7

What are the two categories of Fibre rope construction?

Answer 7

Twisted ( laid)
Braided

Question 8

Are synthetic Fibre ropes stronger than natural Fibre ropes?

Answer 8

Yes

Question 9

Fibre rope overloading should never exceed?

Answer 9

10 to 1

Question 10

What is a figure of eight knot for?

Answer 10

Tying two rope ends of equal length

Question 11

What is a sheepshank knot for?

Answer 11

To shorten up excessively long ropes

Question 12

Slings should not be used lower than what angle?

Answer 12

60 degree

Question 13

A crane is capable of its heaviest lifts when?

Answer 13

It’s boom is very near to vertical

Question 14

The type of chain hoist most suitable for horizontal pull?

Answer 14

A come along

Question 15

What are the two types of synthetic Fibre rope most commonly used?

Answer 15

Nylon
Polypropylene

Question 16

What is the most popular rope available?

Answer 16

Polypropylene

Question 17

What is another name for chain hoists?

Answer 17

Chain falls

Question 18

What are some different knot types?

Answer 18

Bowline
Sheep shank
Figure 8
Sheet bend

Question 19

What does shock loading mean?

Answer 19

This is when a load is dropped and caught by the rigging or when there is an uncalled for strain on the load

Question 20

How is mechanical advantage calculated with block and tackle?

Answer 20

By counting the ropes between

Question 21

A splice in a rope does what to the rope?

Answer 21

Reduces strength by 20 percent

Question 22

How are wire rope slings made?

Answer 22

From one piece that is looped and twisted together with a thimble on end

Question 23

What increases a mobile cranes stability?

Answer 23

Outriggers

Question 24

When does OH&S require you to check rigging?

Answer 24

Before every shift

Question 25

When must wire ropes be replaced?

Answer 25

When they are kinked or have 1/3 of the original diameter worn away

Question 26

What are the two main types of cranes?

Answer 26

Tower cranes
Mobile cranes

Question 27

How is the lifting capacity identified on synthetic fiber round sling?

Answer 27

By color coded non load bearing cover placed on the sling