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

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

Answer 13

12 percent

Question 14

What is the strength reduction on a bent rope?

Answer 14

50 % reduction

Question 15

What is the strength reduction on a knotted rope?

Answer 15

50 % reduction

Question 16

What is the strength reduction on a spliced rope?

Answer 16

15% reduction

Question 17

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

Answer 17

75%

Question 18

Tuggers are used for?

Answer 18

• hoisting loads
• lowering loads
• pulling loads

Question 19

The ratio for general rigging is?

Answer 19

5:1 or 5 is to 1

Question 20

Safety factor for lifting and transporting workers

Answer 20

10:1 or 10 is to 1

Question 21

Safety factor for public elevators

Answer 21

20:1 or 20 is to 1

Question 22

When must you replace a rope?

Answer 22

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

Question 23

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

Answer 23

D²x8

Question 24

The first consideration on lifting a load is?

Answer 24

the weight of the load

Question 25

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

Answer 25

120 to 150 degree

Question 26

All turnbuckles used for rigging must be made from?

Answer 26

Alloy steel

Question 27

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

Answer 27

4 times the load

Question 28

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

Answer 28

2000 kilos or more

Question 29

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

Answer 29

20 times the rope diameter

Question 30

What should never be used on turnbuckles?

Answer 30

Jam Nuts

Question 31

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

Answer 31

1 metre or 3 ft

Question 32

What is the crane sweep area?

Answer 32

is the total area that the cranes boom can swing

Question 33

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

Answer 33

Chain is more resistant to abrasion and corrosion

Question 34

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

Answer 34

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

Question 35

What are the types of jacks available?

Answer 35

* Porta power | * Bottle jack

Question 36

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

Answer 36

10 % of the original diameter

Question 37

When should you remove a chain from service?

Answer 37

if the chain is stretched is more than 5%

Question 38

What is the recommend sling angle when rigging a load?

Answer 38

The sling angle must never be less than 60%

Question 39

What does the term shock loading mean?

Answer 39

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

Question 40

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

Answer 40

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

Question 41

How is Safe Working Load or SWL define?

Answer 41

Breaking strength divided by the safety factor

Question 42

What is the highest that a person should lift?

Answer 42

Lift no higher than eye level

Question 43

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

Answer 43

Weight, Size and Shape of the load

Question 44

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

Answer 44

3 metres or 10 feet

Question 45

What is the strength reduction on a hitched rope?

Answer 45

25% reduction

Question 46

Where is the lifting capacity marked on a chain hoist?

Answer 46

on the hoist

Question 47

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

Answer 47

number one grade Manila

Question 48

What is SF stands for?

Answer 48

Safety Factor

Question 49

What are tag lines used for?

Answer 49

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

Question 50

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

Answer 50

Agree on various hand signals

Question 51

Ratio for ladders?

Answer 51

4:1 or 4 is to one

Question 52

Ratio for scaffolds?

Answer 52

3:1 or 3 is to one

Question 53

Factors that can cause uneven loading on sling legs are?

Answer 53

* 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 54

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

Answer 54

Type 3 - 91 kg

Question 55

Medium duty light commercial ladder has a maximum capacity of?

Answer 55

Type 2 - 102 kg

Question 56

The maximum capacity heavy duty building maintenance ladder is?

Answer 56

Type 1 - 113 kg

Question 57

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

Answer 57

* truck crane * mobile crane * conventional crane

Question 58

What is a conventional crane?

Answer 58

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

Question 59

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

Answer 59

Safety lines / tag lines

Question 60

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

Answer 60

Type 1-A - 136 kg

Question 61

What does EOT means?

Answer 61

Electric Overhead travelling

Question 62

What are the three methods of EOT crane controls?

Answer 62

* cab operated * pendant control * radio control

Question 63

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

Answer 63

it must be tagged and locked out

Question 64

What supports the trolley on an electric overhead travelling crane?

Answer 64

the bridge

Question 65

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

Answer 65

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

Question 66

What is the term limit of approach means?

Answer 66

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

Question 67

The minimum limit of approach is?

Answer 67

ten feet and it increases as voltage increases

Question 68

How should wooden scaffolds be constructed?

Answer 68

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

Question 69

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

Answer 69

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