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Rigging > Chapters 5, 6, & 7 (Possible Test Questions) - WEEK 5 > Flashcards

Chapters 5, 6, & 7 (Possible Test Questions) - WEEK 5 Flashcards

1
Q

Sling configurations:

A
  • Vertical
  • Choker
  • Basket
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2
Q

A sling placed in the choke configuration is good for about ____ the wight of the same sling placed in a vertical configuration.

A
  • half
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3
Q

A sling placed in the basket configuration is good for about _____ the wight of the same sling placed in a vertical configuration.

A
  • twice
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4
Q

When should a choke sling be used?

A
  • When a basket is not possible
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5
Q

The six type of web slings that can be purchased?

A
  • Type 1 - (TC - Triangle Choker)
  • Type 2 - (TT - Triangle to Triangle)
  • Type 3 - (EE - Flat Eye and Eye)
  • Type 4 - (EE - Twisted Eye and Eye)
  • Type 5 - (EN - Endless)
  • Type 6 - (RE - Reversed Eye)
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6
Q

Extra Improved Plow (EIP) consists of:

A
  • 6 strands of 19 wires each
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7
Q

Most common uses of chains in the power delivery industry

A
  • Securing Loads
  • Provide rigging and attachment points
  • Lifting and moving and other equipment
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8
Q

Chains that are used for lifting, rigging, or hoisting must be a minimum of:

A
  • Grade 80 Alloy Chain
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9
Q

Chain slings for setting poles are normally designated as types

A
  • CO or CP
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10
Q

Most common types of chain wear

A
  • Stretching

- Wear at the end of each link where they connect

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11
Q

Material Shackles:

A
  • Are used for attaching or joining hardware such as insulators assemblies to structures.
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12
Q

Rigging Shackles:

A
  • Are used to join slings, provide effective means of choking slings, or provide attachment points for rigging purposes.
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13
Q

When a single sling in a vertical configuration supports a load, the tension on the sling is _____ to the load weight.

A
  • equal
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14
Q

As the sling angle _________, the tension on each sling _________ substantially.

A
  • decreases, increased
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15
Q

What formula would you use to calculate sling tension?

A

Sling Tension = Sling Length/ Sling Height x Weight/# of Slings

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16
Q
  • When installing an overhead transformer, the sling must be as _____ as possible to maximize the lift to allow room below the conductors for the derrick.
A
  • short
17
Q

A pre-trip inspection might include:

A
  • Checking the fluid levels of engines and hydraulic components
  • Checking for burned out signal bulbs such as clearance, warning, and break lights
  • Checking for break and tire wear
  • Checking loose fittings, bolts/lug nuts, cut winch lines, bent, or broken body parts
  • Cracked welds, missing steps, and railings
18
Q

Digger derrick turrets are mounted in one of three configurations

A
  • Rear Center
  • Forward Center
  • Corner Mount
19
Q

If the truck is leveled as much as participle, but is still at an angle greater than 5 degrees, the boom should only be operated at the ___________ of the swing patters.

A
  • lowest half
20
Q

Load angle charts usually include at least the following information

A
  • Load capacities
  • Boom position (angle in degrees or extension)
  • Operational Zones
  • Notices and Warnings
21
Q

When is a boom at its strongest?

A
  • When it is fully retracted and at the highest possible angle
22
Q

The actual lift capacity depends on several factors. List a few:

A
  • The stability of the truck and the strength of the surface the truck is positioned
  • The manufacture’s imposed lifting limitations
  • The physical position of the boom relation to the load
23
Q

The ability of a digger derrick to lift an object that is within its maximum lift capacity depends on two factors:

A
  • The hook radius (the horizontal distance the hook is from the center of the turret)
  • The sheave hight (The vertical distance the sheave is from the hight of the turret base)
24
Q

Overide controls

A
  • Allow ground personnel to operate the equipment from the ground in the event of an accident
25
Q

When Excavating/Operating a Backhoe, the operator must be aware of:

A
  • If the ground will support the weight of the backhoe
  • Where the spoils will be stored
  • How deep and wide the trench will be
  • Who will assist in providing hand signals and which signals will be appropriate
  • If buried utilities have been properly located
26
Q

When digging on slopes, where should the spoils be placed?

A
  • on the uphill side of the slope

Rigging (4 decks)

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