Climbing, Lifting, Rigging and Hoisting

Question 1

When must one equip a full body harness?

Answer 1

• When working at heights greater than 3 meters and not protected by a guardrail
• When working at heights less than three meters but there is an unusual possibility of injury
  
  • Like working above moving water or operating machinery

Question 2

Who must ensure that all components of your fall protection system are compatible?

Answer 2

Your employer

Question 3

When must fall protection equipment be taken out of service?

Answer 3

When it has:

• Become defective
• Come into contact with excessive heat or a substance that may cause it to fail
• Stopped a fall.

Question 4

Where should the back d-ring on a full body harness sit on one’s body?

Answer 4

Between their shoulder blades

Question 5

When are step ladders often utilized?

Answer 5

For applications at low or medium heights

Question 6

What is the safe ratio of length to height of an extension ladder?

How far beyond the working destination must an extension ladder extend?

Answer 6

1:4

1 metre

Question 7

What materials may ladders be made of?

Answer 7

• Fiberglass
• Aluminum
• Reinforced plastic
• Wood

Question 8

What is used to provide a secure footing for scaffolding?

Answer 8

Mud Sills

Question 9

What are toe boards?

Answer 9

A vertical barrier at floor level which prevents objects (tools and material) from falling onto workers below

Question 10

Could the height of a free-standing or rolling scaffold be more than three times the smallest dimension of its base?

Answer 10

No

Question 11

What should the material used in wood scaffolding be?

Answer 11

Sound, close grained, solid-4-sides wood

Question 12

What is the first thing to consider when lifting a load?

Answer 12

The weight of the load

Question 13

What kind of tires do indoor forklifts have?

Answer 13

Solid tires

Question 14

What is a chain hoist used for?

Answer 14

Vertical lifts of light loads

Question 15

How should one manually lift an object?

Answer 15

With a straight back, bent knees and lifting with their legs.

It is generally a good idea to keep the object being lifted close to one’s abdomen

Question 16

Is a lifting technique proper, when one’s back is parallel to the ground?

Answer 16

No, this could result in injury of the lower back

Question 17

Which Hardware components are used to fasten loads to hoisting equipment?

Answer 17

Slings

Question 18

Must a thimble be inserted into the eye of a wire rope sling?

Answer 18

No, it is only highly recommended

Question 19

What is shock loading?

Answer 19

When a material is hoisted suddenly, and a larger than normal force is applied to the rigging equipment.

Question 20

What are the safety factors respectively, for:

• General rigging and hoisting
• Lifting and transporting workers
• Public elevators?

Answer 20

• 5: 1
• 10: 1
• 20: 1,

Question 21

When must a synthetic fiber web sling be discarded and destroyed?

Answer 21

When the red core is exposed

Question 22

If the material used to manufacture a chain sling is not identifiable, may it be used to hoist?

Answer 22

No.

Question 23

If a chain sling shows signs of stretching must it be discarded?

Answer 23

Yes

Question 24

What is the effect of sling angle on a load?

Answer 24

A lower angle applies a larger tension force on the sling

Question 25

What is the recommended minimum safe lifting angle for sling rigging operations?

Answer 25

60°

Question 26

When hosting, the hook should be positioned over the load’s…?

Answer 26

Center of gravity

Question 27

In regards to rigging, what is a block?

Answer 27

A device which provides a mechanical advantage and changes the direction of the pulling or lifting Force.

Question 28

When estimating the sling load for a four leg bridle hitch, what is recommended?

Answer 28

To calculate the load for a two-leg bridal hitch, since the other two legs likely only balance the load.

Question 29

Does raising a crane boom also raise the load?

What is the intended effect of raising a crane boom?

Answer 29

Yes it does

The intended effect is to bring the load closer to the crane

Question 30

What happens to a load if a telescoping boom is shortened?

Answer 30

The load is lowered

Question 31

What is the hand signal for boom up?

Answer 31

An outstretched fist with the thumb pointing up

Question 32

What is the hand signal for boom down

Answer 32

An outstretched fist with the thumb pointing down

Question 33

What is the hand signal for hoisting a load?

Answer 33

Right hand index finger pointing up rotating

Question 34

What is the hand signal for lowering a load?

Answer 34

Right hand index finger pointing down and rotating

Question 35

Must one use two hands to signal a crane operator to make slow movements?

Answer 35

Yes, slow movement hand signals generally require two hands

Question 36

When making a simultaneous boom and load hand signal what extra motion is required on top of the normal boom up and boom down hand signals?

Answer 36

Opening and closing of the Fist.

These hand signals is used to move the load laterally and maintain is vertical position

Question 37

With a telescoping boom what is the hand signal to shorten the boom?

Conversely, what is the hand signal to lengthen the boom?

Answer 37

Shorten = Fists with outstretched thumbs in front of the signalman, thumbs pointing toward eachother

Lengthen = Fists with outstretched thumbs in front of the signalman, thumbs pointing away from eachother