Electrical Level 1. 26102-14. Electrical Safety

Front 1

Double-insulated/ungrounded tool

Back 1

An electrical tool that is constructed so that the case is insulated from electrical energy. The case is made of a nonconductive material.

Front 2

Fibrillation

Back 2

Very rapid irregular contractions of the muscle fibers of the heart that result in the heartbeat and pulse going out of rythm with each other.

Front 3

Grounded tool

Back 3

An electrical tool with a three-prong plug at the end of its power cord or some other means to ensure that stray current travels to ground without passing through the body of the user. The ground plug is bonded to the conductive frame of the tool.

Front 4

Ground fault circuit interrupter (GFCI)

Back 4

A protective device that functions to de-energize a circuit or portion thereof within an established period of time when a current to ground exceeds some predetermined value. This value is less than that required to operate the overcurrent protective device of the supply circuit.

Front 5

Polychlorinated biohenyls (PCBs)

Back 5

Toxic chemicals that may be contained in liquids used to cool certain types of large transformers and capacitors.

Front 6

The most life-threatening hazard on a construction site typpically include all of the following except ____.

Back 6

Chemical burns

Hint 6

Falls, electric shock, being crushed by falling or flying object, or chemical burns.

Front 7

If a person's heart begins to fibrillate due to an electric shock, the solution is to ____.

Back 7

Have a qualified person use emergency defribillation equipment.

Front 8

True or false? Low-voltage conductors rarely cause injuries.

Back 8

False

Front 9

Class 00 rubber gloves are used when working with voltages less than _____.

Back 9

500 v. They are identified by their beige colored tag.

Front 10

An important use of a hot stick is to ____

Back 10

Replace fuses.

Front 11

Which of these statements correctly describes a double-insulated power tool?

Back 11

It is made entirely if plastic or other nonconducting material.

Front 12

Which of the following applies in a lockout/tagout procedure?

Back 12

Lockout/tagout devices are installed by every authorized employee involved in the work.

Hint 12

Only the supervisor can install lockout/tagout devices

If several employees are involved, the lockout/tagout equipment is applied only by the first employee to arrive at the disconnect.

Lockout/tagout devices applied by one employee can be removed by another employee as long as it can be verified thay the first employee has left for the day.

Lockout/tagout devices are installed by every authorized employee involved in the work.

Front 13

True or false? The NEC provides requirements for safe electrical installations, while NFPA 70E provides guidance for establishing safe electrical workplaces.

Back 13

True

Front 14

What is proper distance from the feet of a straight ladder to the wall?

Back 14

One-fourth the working height if the ladder.

Front 15

What are the minimum and maximum distances in inches that a scaffold plank can extend beyond its end support?

Back 15

6;12

Front 16

All of the following are usually considered confined spaces except a ____.

Back 16

3-ft trench

Hint 16

3-foot trench

Sewer

Pipeline

Manhole

Front 17

The best way to protect yourself from solvent hazards is to ____.

Back 17

Read and follow all instructions on the product's SDS/MSDS.

Front 18

Asbestos was banned in____; therefore, you must assume that any facility constructed before ____ has asbestos in it.

Back 18

1978; 1980 because it was still in the manufacturing pipeline for a while after it was banned.

Front 19

True or false? You may throw vapor lamps out with regular trash as long as you wrap them carefully to avoid breakage.

Back 19

False. Recycled. Test tubes must be packaged.

Front 20

A PFAS anchorage point for a 6-foot lanyard must be able to hold ____.

Back 20

5k lbs

Front 21

CFR part 1910 covers the ____.

Back 21

Covers the OSHA standards for general industry.

Front 22

CFR part 1926 covers the ____

Back 22

Covers the OSHA standards for the construction industry.

Front 23

True or false? You should use a compressor for an air test on high-voltage gloves because it has more pressure and is much faster.

Back 23

False

Front 24

There are 6 classes of rubber protective equipment.

Back 24

Class 00 (beige tag)

500 V

Class 0 (red tag)

1k V

Class 1 (white tag)

7.5k V

Class 2 (yellow tag)

17k V

Class 3 (green tag)

26.5k V

Class 4 (orange tag)

36k V

Front 25

All conductors, buses, and connections should be considered _____ until proven otherwise.

Back 25

Live/hot/powered

Front 26

The distance from the ladder feet to the base of the wall should be about ____ the vertical distance from the bottom to the top of the ladder.

Back 26

1/4

Front 27

As it is erected, each parth of a scaffolding shall be carefully _____

Back 27

Inspected

Front 28

List the general guidelines used in identifying a confined space.

Back 28

Has limited entry and exit

It is not intended for continued human occupancy

It has poor ventilation

It has the potential for entrapment/engulfment

It has the potential for accumulating a dangerous atmosphere.

Front 29

Before determining the proper procedure for confined space entry, a(n)____ must be performed.

Back 29

Hazard review

Front 30

Fall protection must be used when employees are in a walking or working surface that is _____ or more above a lower level and has an unprotected edge or side.

Back 30

6 feet or site specific. Some sites are 4 feet.