electrical safety

The employer must establish an _____ on construction sites, which covers all cord sets, receptacles that are not a part of the building or structure, and equipment connected by cord and plug that are available for use or used by employees

Assured equipment grounding conductor program

protective measures that may be used to protect against shock when working near any part of an electric power circuit include:

de-energizing the circuit grounding the circuit guarding the circuit by insulation

The min requirements for an AEGC Program include:

designation of one or more competent persons to implement the program performance of a continuity test written description of program at jobsite

A conductor of a flexible cord or cable used as a grounded conductor or an equipment grounding conductor must be _____ from other conductors.

distinguishable

to protect against overcurrents use:

fuses circuit breakers

What type of gloves should be worn while using hand tools that may be exposed to underground electric power lines?

insulated protective gloves

when splicing hard service flexible cords No. 12 or larger, the splice must retain the following characteristic(s) of the cord:

insulation outer sheath properties

A separate bonding conductor is required for the trolley wheels and its tracks unless there is ____ contact.

metal to metal

common misuses of equipment include:

mod cords using damaged tools using equipment outdoors that is labeled for use in dry, indoor locations attaching undergrounded two prong adapter plugs to three prong cords

equipment used in hazardous locations:

must be approved for location must be approved for ignitable prop of the specific substance present must be approved for combustible properties of the specific substance present

on a crane or hoist, a disconnecting means must be located between:

runaway contact conductors and power supply

to reduce your risk of coming into contact with electrical current while using electrical cords, you should:

use cords that are designed for hard or extra hard usage equipped with strain relief

Circuits rated 600 volts or less require the following overcurrent protection:

-devices that are accessible and not located where they could create a hazard -fuses and cricut breaker located or shielded to prevent potential injuries by their operation

methods used to guard live arts of electric equipment operating at 50 volts or more include:

-enclosing the equipment in a vault accessible only by qualified persons -elevating parts at least 8 ft -using permanent substantial partitions or screens

how many disconnecting means are required by all ungrounded main power supply conductors for elevators, escalators and moving walks?

1

Facilities for quickly drenching the eyes and body must be provided within ____ of the battery handling area.

25

Portable electric tools must use extension cord set of ____ type

3 wire

electrical equipment can become an ignition source in hazardous locations. Common sources of ignition include:

arcs and sparks high temp electrical equipment

Your employer must determine if the possibility exist for workers, tools, or machines to come in contact with energized electric power circuits:

before work begins

flammable gases and vapors are present in:

class 1

Class II locations are areas made hazardous by the presence of _____ in the atmosphere.

combustible dust

Class II locations are broken into groups according to:

conductivity ignition temp

flexible cords and cables may be used for:

connection of stationary equipment prevention of transmission of noise or vibration wiring of cranes and hoists

Flexible cords connected to devices and fittings in ways that create _____ at joints and terminal screws are a hazard.

connections????

flexible cords and cables are more susceptible to damage than fixed wiring because:

exposed flexible

when handling acids or batteries, workers must wear

face shields aprons rubber gloves

equipment that has been shop fabricated or altered must be in compliance with:

federal

Tags are used to:

identify equipment, controls or circuits that are being worked on identify equipment, controls or circuits that cant be operated

Class III locations where ____ can collect around equipment and be ignited by heat, sparks, or hot metal

ignitable fibers

Class I locations are broken into four groups according to:

ignition temp explosion pressure

under which conditions can an unsealed battery be properly stored?

in a well ventilated room in an enclosure with outside vents

unless identified for use in the operating environment, conductors or equipment cannot be located:

in damp or wet conditions where they may be exposed to deteriorating agents such as gases fumes vapors and liquids where they may be exposed to excessive temps

The approved options for installations over 600 volts that are accessible to unqualified persons include:

made with metal enclosed equipment enclosed in a vault placed in an area controlled by a lock

which of the following tools do NOT need to be grounded?

portable tools protected by double insulation

when determining the safety of equipment, consider:

suitability for installation mechanical strength and durability arcing effects

The frame of a vehicle serves as the grounding electrode for a system supplied by a generator located on the vehicle when

the generator frame is bonded to the vehicle frame generator supplies equipment on the vehicle noncurrent-carrying metal parts

hazardous locations are classified by:

type condition nature

Control equipment, utilization equipment and busways approved for use only in dry locations must be protected against damage from _____ during building construction.

weather

Portable electric lighting operating at 120 volt requires a GFCI when used in:

wet conductive

damage to flexible cords may occur from:

window edges staples normal wear and tear from usage