Rigging, Crane and Hoist, Climbing, Lifting and Procedures

Question 1

What do you use on a boom truck to increase the cranes stability when you hoist?

Answer 1

Two sets of stabilizers

Question 2

The tirfor are best used for?

Answer 2

Moving heavy equipment across the floors or horizontally

Question 3

What are the common capacities for electric hoist?

Answer 3

1/4 to 5 ton

Question 4

What can you do on the crawler-mounted lattice boom crane to give the crane more stability?

Answer 4

you can extend the tracks laterally to provide a wider stance

Question 5

One of the most important considerations when assessing the condition of the ground on which a crane will sit is to?

Answer 5

to investigate whether the ground has been excavated recently

Question 6

What are the two purposes of blocking when used with outrigger floats?

Answer 6

• increases the bearing area of the float

* it prevents float from settling or sinking

Question 7

What must you ensure when you are leveling a crane on outriggers?

Answer 7

that all tires are off the ground

Question 8

In addition to using a target level or carpenters level, what other means can be used to determine that the crane is sitting level?

Answer 8

check if the hoist line is hanging plumb in two directions

Question 9

What three (3) things affect the stability and reduce the lifting capacity of a mobile crane?

Answer 9

• load distance
• load weight
• quadrant that the crane is lifting over

Question 10

When the crane you are using is equipped with outriggers, what must you ensure?

Answer 10

the outriggers beams are extended fully and that all four tires are off the ground

Question 11

For transportation purposes, where is the jib extension mounted on the carrier-mounted telescopic boom crane?

Answer 11

crane heel (base) section of the telescopic boom

Question 12

What are two basic type of cranes?

Answer 12

• hydraulic

* conventional

Question 13

The comparison of the safety working load to the braking express as a ratio

Answer 13

the safety factor

Question 14

When estimating the weight of a material, what percentage of the safe load is added?

Answer 14

12 percent

Question 15

What is the strength reduction on a bent rope?

Answer 15

50 % reduction

Question 16

What is the strength reduction on a knotted rope?

Answer 16

50 % reduction

Question 17

What is the strength reduction on a spliced rope?

Answer 17

15% reduction

Question 18

What is the percentage on rope strength when a hitch is used?

Answer 18

75%

Question 19

Tuggers are used for?

Answer 19

• hoisting loads
• lowering loads
• pulling loads

Question 20

The ratio for general rigging is?

Answer 20

5:1 or 5 is to 1

Question 21

Safety factor for lifting and transporting workers

Answer 21

10:1 or 10 is to 1

Question 22

Safety factor for public elevators

Answer 22

20:1 or 20 is to 1

Question 23

When must you replace a rope?

Answer 23

when the surfaces are worn by 1/3 or more of their original diameter

Question 24

What is the formula to calculate 5 to 1 factor on wire ropes for general rigging and hoisting?

Answer 24

D²x8

Question 25

The first consideration on lifting a load is?

Answer 25

the weight of the load

Question 26

The rope perimeter should be supported by the sheave in an arc of?

Answer 26

120 to 150 degree

Question 27

All turnbuckles used for rigging must be made from?

Answer 27

Alloy steel

Question 28

A scaffold must be design and constructed to support at least?

Answer 28

4 times the load

Question 29

The OHS code provides the safety requirement for operating various types of hoisting equipment with a rated capacity of?

Answer 29

2000 kilos or more

Question 30

As a rule of thumb use a minimum sheave diameter of?

Answer 30

20 times the rope diameter

Question 31

What should never be used on turnbuckles?

Answer 31

Jam Nuts

Question 32

What is the minimum distance a ladder must protrude above the intended landing point?

Answer 32

1 metre or 3 ft

Question 33

What is the crane sweep area?

Answer 33

is the total area that the cranes boom can swing

Question 34

Why is chain better suited for certain hoisting jobs than wire rope?

Answer 34

Chain is more resistant to abrasion and corrosion

Question 35

Why is wire rope better for general construction rigging than chain?

Answer 35

* chain fails when one link breaks | * chain gives little to no warning signs when is about to break

Question 36

What are the types of jacks available?

Answer 36

* Porta power | * Bottle jack

Question 37

Remove from service any portion of lifting chain that is worn by?

Answer 37

10 % of the original diameter

Question 38

When should you remove a chain from service?

Answer 38

if the chain is stretched is more than 5%

Question 39

What is the recommend sling angle when rigging a load?

Answer 39

The sling angle must never be less than 60%

Question 40

What does the term shock loading mean?

Answer 40

when a load is expose to stress by having the load suddenly started or stop

Question 41

What is the goal of proper lifting techniques for the human body?

Answer 41

to eliminate loading stress on the soft tissue of your lower back

Question 42

How is Safe Working Load or SWL define?

Answer 42

Breaking strength divided by the safety factor

Question 43

What is the highest that a person should lift?

Answer 43

Lift no higher than eye level

Question 44

When conducting a hazard assessment related to lifting and handling a load, your employer must consider the?

Answer 44

Weight, Size and Shape of the load

Question 45

At what height must an employer have a guard rail erected for a temporary work area?

Answer 45

3 metres or 10 feet

Question 46

What is the strength reduction on a hitched rope?

Answer 46

25% reduction

Question 47

Where is the lifting capacity marked on a chain hoist?

Answer 47

on the hoist

Question 48

Only one type of natural fibre rope is sturby enough for lifting service?

Answer 48

number one grade Manila

Question 49

What is SF stands for?

Answer 49

Safety Factor

Question 50

What are tag lines used for?

Answer 50

to keep the load from turning or to swivel the load to avoid abstractions in the way

Question 51

When using hand signals, the operator and the signal man must what?

Answer 51

Agree on various hand signals

Question 52

Ratio for ladders?

Answer 52

4:1 or 4 is to one

Question 53

Ratio for scaffolds?

Answer 53

3:1 or 3 is to one

Question 54

Factors that can cause uneven loading on sling legs are?

Answer 54

* varying sling legs length * lifting logs positions * sling eye positions in the lifting hook or shackles * a structure that is warped, twisted, or uneven

Question 55

The maximum capacity on a light duty house hold ladder is?

Answer 55

Type 3 - 91 kg

Question 56

Medium duty light commercial ladder has a maximum capacity of?

Answer 56

Type 2 - 102 kg

Question 57

The maximum capacity heavy duty building maintenance ladder is?

Answer 57

Type 1 - 113 kg

Question 58

The carrier mounted lattice boom crane is also known as the?

Answer 58

* truck crane * mobile crane * conventional crane

Question 59

What is a conventional crane?

Answer 59

* A conventional crane uses mechanical means to raise and lower the boom * The lattice boom is made from a structural pipe and steel

Question 60

What is one of the fibre ropes main use in the industry?

Answer 60

Safety lines / tag lines

Question 61

The maximum capacity on an extra heavy duty industrial construction ladder is?

Answer 61

Type 1-A - 136 kg

Question 62

What does EOT means?

Answer 62

Electric Overhead travelling

Question 63

What are the three methods of EOT crane controls?

Answer 63

* cab operated * pendant control * radio control

Question 64

What happens when a EOT is to be inspected or to have maintenance done?

Answer 64

it must be tagged and locked out

Question 65

What supports the trolley on an electric overhead travelling crane?

Answer 65

the bridge

Question 66

Who must be present if you are moving the boom into the limit of approach?

Answer 66

A signaler or a signal man must be present at ALL times

Question 67

What is the term limit of approach means?

Answer 67

is the danger zone at which no boom, load, crane, or any hoisting equipment cant enter

Question 68

The minimum limit of approach is?

Answer 68

ten feet and it increases as voltage increases

Question 69

How should wooden scaffolds be constructed?

Answer 69

on painted dressed plain wood or lumber should be sound, close-grained S4S material, and all components should fitted tight together

Question 70

At what height should crane hooks be kept when not in use?

Answer 70

Always leave the crane hook above head height when not in use