LINE E3

Question 1

the distance a crane must be from power lines if the lines are charged with 750-75,000 Volts?

Answer 1

3m

Question 2

the distance a crane must be from power lines if the lines are charged with 75,000-250,000 Volts?

Answer 2

4.5

Question 3

the distance a crane must be from power lines if the lines are charged with over 250,000 Volts?

Answer 3

6m

Question 4

turnbuckles have witch threads and a sleeve?

Answer 4

left hand and right hand threads

Question 5

what is a turnbuckle Jaw end?

Answer 5

a U joint with a pin

Question 6

at what angle are eye bolts able to with stand?

Answer 6

45 degrees but no more

Question 7

what is the throat of a shackle?

Answer 7

the round part for the rope end

Question 8

when are shackles used?

Answer 8

when two or more ropes are place on a hook

Question 9

what must you never do with a shackle?

Answer 9

replace the Pin with an ordinary bolt

Question 10

the pin end of a shackle should always be the ___ end

Answer 10

hook end never sideways

Question 11

the space between cable clips is how far?

Answer 11

6-7 rope diameters

Question 12

correctly installed cable clips reduce the breaking strength by ___ if correct it is increased by ___

Answer 12

20% less and 50% more

Question 13

what should be used for transporting steel pipe by crane?

Answer 13

Choker hooks and if long pips then a spreader beam

Question 14

what is a bridal hitch?

Answer 14

two or more ropes or slings used too support the load

Question 15

if using 4 ropes what is lifting the load?

Answer 15

only two the other two are to stablize

Question 16

what is the necessary incline angle for a basket hitch?

Answer 16

60 degrees from the bottom of the load

Question 17

how wide should rollers be?

Answer 17

75mm

Question 18

pulling device that uses chain or cable?

Answer 18

come-along

Question 19

An apparatus capable of long, continuous lifts

Answer 19

Tirfor Jack

Question 20

Tirfor Jacks can be made to move in the opposite direction by

Answer 20

relocating the pipe handle to the other lever

Question 21

Tirfor Jacks use

Answer 21

Wire rope

Question 22

Wire ropes must be replaced when

Answer 22

6 or more broken wires in a rope lay or 3 broken wires in one strand or if wires broken at attached fittings

Question 23

what is Peening?

Answer 23

when the rope becomes flattened from rollers or other wear and becomes brittle

Question 24

What is scrubbing?

Answer 24

displacement of wire strands

Question 25

what is bird caging?

Answer 25

the wire rope gets twisted backwards and the strands open up and separate causing a space in the rope

Question 26

what is the proffered rope for a tag line?

Answer 26

Polypropylene because it doesn’t conduct electricity and is inexpensive

Question 27

what knot should be used to attach a tag line to a load?

Answer 27

Bowline

Question 28

1 bell or flash (crane)

Answer 28

STOP

Question 29

2 bells or flashes (crane)

Answer 29

RAISE

Question 30

3 bells or flashes (crane)

Answer 30

LOWER

Question 31

4 bells or flashes (crane)

Answer 31

ALL CLEAR

Question 32

slings and ropes for hoisting should always be at least ___ degrees or more from horizontal

Answer 32

60 degrees

Question 33

which gloves should not be used for safe handling of materials?

Answer 33

gauntlet type gloves