Level 4/5: Training Evaluation

When a pre-pick is required; in order to position the towing forks under the casualties front axle, you:

May exceed the stopping ability
Must crib the casualty to maintain a work space for the operator.
Can cause the drum brake to slip causing loss of control
Must put the turn signal on for lane change

What is the WLL of 3/8 inch steel core wire rope, with a 4 : 1 Design Factor and an UL. of 15,000 lb?

2,820 lb
5,480 lb
3,280 lb
3,750 lb

The term of 7 x 25 when talking about wire rope construction describes the:

Working Load Limit – WLL
Number of wires (7) and the number of strands (25) in the wire rope
Number of strands (7) and the number of wires (25) in each strand
Number of wraps to put on the drum

True or False: The term sheave describes the side plates of a snatch block.

True
False

The term Line Load refers to the:

Resistance to be moved
Load on the line
Lines to the anchor
Lines to the load

True or False: An argument or disagreement will only continue if the adult state of mind is active.

True
False

True or False: It is necessary to secure a casualty to a set of dollies when towing.

True
False

The formula to calculate Lift Capacity of a tow truck is:

FAW x OH / WB
1/2 FAW x WB / OH
FAW x WB / OH
1/2 FAW x OH / WB

Which of the following is a type of surface resistance?

Gradient Resistance
Rolling Resistance
Anchor-Ability
Weight Transfer

Which of these is not one of the four types of resistance:

Mire
Gradient
Damage
Weight Transfer

True or False: The average 8,000 lb winch will pull less on the third layer than the first layer?

True
False

True or False: The tire load rating for the rear tires of your tow truck is located on the sidewall of the tire.

True
False

True or False: WreckMaster’s “Golden Rule” of winching is “lines to the load.”

True
False

What is the resistance factor for a vehicle when all of it’s tires are flat?

0.666
.75
1.00
1.50

True or False: WreckMaster doesn’t recommend lubricating a snatch block after every use.

True
False

The gradient resistance factor for a vehicle on a 60 degree grade is:

0.25
0.50
0.75
1.00

True or False: Using a Snatch Block will increase the loads calculated resistance.

True
False

True or False: Inspection of wire/web slings shall be made by the operator using it.

True
False

True or False: Cruse Loop technique does not require proper VEER angle ratio for success.

True
False

What will occur if you extend the boom without letting out wire rope?

Radius will increase
Loss of stability
The load will rise
Nothing

Periodic inspection of web slings shall be performed:

After your next shift
The end of every other month.
Before & after each use & by a designated person in an annual written report.
Each week before being used.

True or False: To multiply effort at the load, a snatch block could be employed.

True
False

True or False: A center drive style of winch, will pull less with a full drum of wire rope.

True
False

Which of the following is not a wise choice to select as an anchor and one WreckMaster would not recommend?

Another tow truck
An excavator
A power or utility pole
A dump truck

True or False: It is WreckMaster policy that all tows use secondary (safety) attachment chains.

True
False

True or False: It is not necessary to straighten & secure the steering wheel when towing by the front.

True
False

There are three items required to calculate Lift Capacity. One is the wheel base, another is the overhang, what is the final item?

Boom angle
Front axle weight
Wrecker’s fulcrum point
Wrecker’s static weight

What is the Lift Capacity for the following tow truck:

<strong>FAW 8,500 lb
<strong>Overhang 150″
<strong>Wheel Base of 275″

52,414 lb
15,584 lb
7,792 lb
4,637 lb

What is the mire resistance factor for a vehicle mired at wheel depth?

0.75
1.00
1.50
2.00

What is the mire resistance factor for a vehicle mired at tire depth?

0.75
1.00
1.50
2.00

How many wraps of steel wire rope should be on the drum before winching begins?

3
5
6
9

The gradient resistance factor for a vehicle on a 15 degree grade is:

0.25
0.50
0.75
1.00

A vehicle weighing 12,500 lb on the front axle and a total of 25,500 lb on the rear axles, has gone off the road, down a 15 degree hard grass embankment. After calculating weight transfer, the pull required will be approximately?

9,500 lb
11,400 lb
1,900 lb
38,000 lb

A 38,000 lb vehicle has gone off the road, down a 15° grass embankment that has become soft. The pull required will be approximately?

38,000 lb
9,500 lb
15,200 lb
11,400 lb

The gradient resistance factor for a vehicle on a 30 degree grade is?

0.25
0.50
0.75
1.00

What is the mire resistance factor for a vehicle mired at body depth?

0.666
0.75
1.00
1.50

An 82,200 lb sea container is on a 15° grade between two houses. One end of the container needs to be lifted, the end the doors are located needs to be raised one foot. The lift will require approximately how many pounds of force to raise it the one foot?

41,100 lb
82,200 lb
51,375 lb
30,825 lb

A lay up with one snatch block in it that is attached at an anchor will:

Double the effort.
Have no effect on the load.
Decrease the effort by half
Can’t be created

True or False: The term “quenched and tempered” is a hardening process for chain and hooks.

True
False

Most manufacturers Lift Capacity is calculated with the boom angle at:

15°
30°
45°
60°

The gradient resistance factor for a vehicle on a 45 degree grade is?

0.25
0.50
0.75
1.00

Used in a choker, a web sling has a capacity that is ___% of its leg rating.

50%
80%
100%
20%

It is not recommended to use a wire rope sling at angles of less then:

15°
30°
45°
60°

A Running Block is attached to:

Hook
Anchor
Winch
Load

A Fixed Block is attached to:

Tow Truck
Anchor
Winch
Load

What is the Ultimate Load of 3/8 inch Grade 80 Alloy chain with a WLL of 7,100 lb and a 4 : 1 Design Factor?

21,300 lb
7,100 lb
8,800 lb
28,400 lb

What is the design factor for high performance continuous loop straps or synthetic slings?

3.3:1
4:1
5:1
6:1

What are the four basic types of resistance encountered in the towing and recovery industry?

Rolling, Mire, Weight Transfer, Gradient
Mire, Damage, Hard Surface, Soft Surface
Mire, Hard Rolling, Soft Surface, Weight Transfer
Rolling, Damage, Mire, Gradient

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Level 4/5: Training Evaluation

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