TPC 205 electrical, safety, and protection

Question 1

The effect of current on the human body depends on the three main factors - the amount of current, the length of time the body contacts , the current and the _____

Answer 1

Path of the current through the body

Question 2

If a person is a victim of electrical shock, you immediately action should be to ?

Answer 2

Are you sure that the breathing and circulation is maintained

Question 3

Which of the following can best describe as preventing electrical separation between a worker and a conductor

Answer 3

Insulation

Question 4

The NEC defined equality person as a person

Answer 4

Is familiar with equipment operations and hazards

Question 5

When working around you should never wear

Answer 5

Clothes made of polyester

Question 6

To guardians electric shock you should wear____ gloves for insulation under_______ gloves protection

Answer 6

Rubber ; leather

Question 7

If a chemical comes in contact with your eyes, your immediate action should be

Answer 7

Rinse Thoroughly

Question 8

If several workers are working on a single piece of equipment, they should

Answer 8

Each apply a lock to the power source

Question 9

The barrier tape used to keep personnel out of areas where hazardous electrical work is being performed should be

Answer 9

Displayed at a readily visible level

Question 10

What time is intended to be used to verify that a circuit has been a deenergize?

Answer 10

Voltage tester

Question 11

When a piece of equipment is in a zero energy state that means that is

Answer 11

Cannot be activated accidentally

Question 12

The first step in locking out power to a piece of equipment is to

Answer 12

Notify the operators

Question 13

If you must use a portable power tool, but only a two slot receptacle is available you should

Answer 13

Use a two wire double insulated tool

Question 14

If a shock victim appears to be an injured and feels fine you should

Answer 14

Call for Prompt medical assistant

Question 15

If a victim of electric shock is unconscious you should

Answer 15

check for breathing and a pulse

Question 16

Shaded text in the NEC and NEC handbook indicates that the information

Answer 16

Has changed since the previous edition

Question 17

Which of the following would be covered by NEC?

Answer 17

Public schools

Question 18

Information on branch circuit grounding, and overcurrent protections can be found in NEC chapter

Answer 18

2

Question 19

Article 430 the most widely used part of NEC chapter 4 deals with______ installation requirements

Answer 19

Motor

Question 20

The article 760 covers the special installation requirements of

Answer 20

Fire alarms

Question 21

A tool’s grounding wire carries current

Answer 21

When a ground fault occurs

Question 22

To evaluate receptacle wiring and grounding quickly use a

Answer 22

Receptacle tester

Question 23

A GFCI opens a circuit when it detect

Answer 23

Different currents in the conductor of a circuit

Question 24

Static electrical is commonly generated by

Answer 24

friction between two surfaces

Question 25

A class C fire extinguisher is intended to use on what kind of fire

Answer 25

Energized electrical equipment

Question 26

What kind of fuse is design mainly to protect motors circuits

Answer 26

Dual element

Question 27

According to the NEC rules plug fuses, cannot be used in circuit exceeding _____ volts between conductors

Answer 27

125

Question 28

In an ambient-compensation circuit breaker a(n) _____ compensation for change in ambient temperature

Answer 28

Bimetallic strip

Question 29

The most important consideration in selecting a molded-case circuit breaker is

Answer 29

Potential difference

Question 30

Which of the following is the best course of action to take after a circuit breaker trips

Answer 30

Determine what caused it to trip

Question 31

If more than one motor is connected to a feeder protecting device, the rating of the device is determined by adding the highest current required for a single motor to the ____ of all the other motors

Answer 31

Full load current rating

Question 32

The motor running overturn protected device on a motor is usually an

Answer 32

Overload relay

Question 33

What kind of temperature device consist of a calibrated wire enclosed in a protective shield

Answer 33

Resistance

Question 34

The disadvantage of using the line fuse used to to protect electric motors is that they only work against

Answer 34

Excess current

Question 35

Single phase in a three phase motor occurs when

Answer 35

It continues running after one phase is lost