Exam

Question 1

Rule of thumb formula for WLL of wire rope?

Answer 1

Diameter squared x 8

Question 2

Function of a snatch block?

Answer 2

Change direction of pull

Question 3

How to choose a proper anchor point?

Answer 3

Approved structurally sound for all imposed forces

Question 4

Minimum safe lifting angle in Ontario?

Answer 4

45 degrees

Question 5

How is the limit of approach distance specified?

Answer 5

With or without a single person (1 boom length)

Question 6

What is the critical sling angle that doubles the sling load?

Answer 6

30 degrees

Question 7

If it was still legal, what are the rope specifications for a lanyard?

Answer 7

5/8ths diameter nylon rope

Question 8

What knot is used to join ropes of equal diameter?

Answer 8

Reef knot

Question 9

Which sling configuration is used to avoid load slipping?

Answer 9

Double wrapped choker or basket

Question 10

What is the height from the ground that requires fall arrest restraint or barriers?

Answer 10

10ft

Question 11

What is the becket clip on a rope block assembly?

Answer 11

On the travelling block (upside down in picture example)

Question 12

Most important maintenance procedure for wire rope?

Answer 12

Lubrication

Question 13

When using Crosby clips to make an eye, how does it affect the wire rope load capacity?

Answer 13

Decrease by 20%

Question 14

How to calculate the minimum sheave diameter for wire rope?

Answer 14

20x wire rope diameter

Question 15

How do you repair a damaged hook, sling or shackle?

Answer 15

Destroy it

Question 16

Basic ladder safety rules are?

Answer 16

All of the above (secure top and bottom etc.)

Question 17

How is WLL for a hoisting sling determined?

Answer 17

Read the tag

Question 18

When fibre ropes are spliced with a knot how do you calculate the WLL?

Answer 18

Working load limit for the weaker line, minus 50% for the knot

Question 19

Which is a hazardous application of lang lay rope?

Answer 19

A lifting sling when the load can rotate

Question 20

Calculate the minimum sheave diameter for fibre rope?

Answer 20

Rope diameter x8

Question 21

What is a disadvantage of a back splice on a fibre rope?

Answer 21

Takes too long to weave

Question 22

Wire rope made of smaller individual wires but same diameter is..?

Answer 22

More flexible, resists fatigue

Question 23

What is the required size for extra padding under the stabilizer legs?

Answer 23

Must be 3x the foot area

Question 24

What is the principal of boom angle on crane stability?

Answer 24

Lower boom/lower stability

Question 25

If necessary, how should you lift with shoulder-less eye bolts?

Answer 25

Only when properly rated with a spreader bar