6-2-3

Question 1

The Working Load Limit (WLL) of any individual rigging component shall not be exceeded in any situation.

Answer 1

true

Question 2

The three sags associated with a line conductor are stringing, maximum, and __?__.

Answer 2

final

Question 3

Moving a conductor into a corner causes __?__.

Answer 3

sag and tension to increase

Question 4

The formula used to calculate the vertical weight on a structure is __?__.

Answer 4

T times H over L…….or…….TxH/L

Question 5

When pulling in a conductor, line tension __?__ when one-half of the sag is removed.

Answer 5

doubles

Question 6

Line tension is normally less than __?__ for an aluminum conductor smaller than 3/0.

Answer 6

500lbs

Question 7

Slings used on a 1000-pound transformer at a 60° angle will see __?__ each.

Answer 7

577lbs

Question 8

When lifting a conductor, its weight doubles when the lowest point of sag reaches an adjacent structure.

Answer 8

true

Question 9

The WLL (working load limit) is based on the actual breaking strength of the equipment and does not include a safety factor.

Answer 9

false

Question 10

Chains that are safe to use as slings when doing line work will have each link marked with the letter __?__.

Answer 10

A

Question 11

A knot may reduce the WLL of a rope by as much as __?__.

Answer 11

45-55%

Question 12

A hand line may be used to hang a transformer that weighs 200 lbs or less.

Answer 12

false

Question 13

Two things that must be known prior to rigging for a lift are the load weight and the __?__.

Answer 13

angle involved

Question 14

When using a fiber rope, the shell of a block should be __?__ times the diameter of the rope.

Answer 14

8

Question 15

An angle of 135° exerts less of a load on a block hook than an angle of 45°.

Answer 15

true

Question 16

A block that can be placed at any point in a line without having to feed the end of the line through it is called a __?__ block.

Answer 16

snatch

Question 17

Eye splices should have a(n) __?__ to maintain rope strength and reduce wear.

Answer 17

thimble

Question 18

A __?__ is often called the king of knots for line work.

Answer 18

bowline

Question 19

When using a capstan hoist to lift a load, the number of turns should be so that about 20 to __?__ of pull are on the fall line.

Answer 19

40lbs

Question 20

A rope used for a hand line should have a safety factor of at least __?__.

Answer 20

10 to 1

Question 21

A web hoist, often called a hot hoist, is considered to be an insulated hoist.

Answer 21

false

Question 22

When installing U-bolt wire rope clips, the saddle goes on the __?__.

Answer 22

live side

Question 23

Polypropylene rope is rated poor in its resistance to __?__.

Answer 23

sunlight

Question 24

When using blocks, the load on a pole gin is equal to the weight of the load plus the __?__.

Answer 24

pull on the fall line