NETA 1

Simplify -2(x +3) - 5(x - 4)

-7x + 14

1 Megohm is equivalent to how many ohm?

1,000,000

EV Charging Stations can be broadly classified into two types: AC charging Station and DC charging Station. Which type of EVSE will regulate voltage and current to the vehicle using an external charging system? 1. AC Charging Station 2. DC Charging Station

1. DC Charging Station

Which has the greatest time difference? 1. Extremely inverse 2. Inverse 3. Moderately inverse 4. Slightly inverse

1. Extremely inverse

Which test would be required for 15kV switch? 1. Hipot 2. Power factor 3. TTR 4. Excitation

1. Hipot

______ hazards are explosive, reactive or flammable materials that can harm people and damage property and processes. 1. Physical 2. Health 3. Environmental 4. Occupational 5. Chemical

1. Physical

frequency response analysis is a powerful tool primarily used to check the integrity of which type of equipment? 1. Power transformers 2. Electric generators 3. High-voltage cables

1. Power transformers

What test will indicate the serviceability of a medium-voltage vacuum interrupter? 1. Vacuum Bottle Integrity Test 2. Insulation Resistance Test 3. Insulation Power Factor 4. Partial Discharge Testing

1. Vacuum Bottle Integrity Test

When is the danger of arc flash the greatest for drawout circuit breakers? 1. When racking the circuit breaker in or out 2. When opening the circuit breaker 3. When closing the circuit breaker 4. All of the above

1. When racking the circuit breaker in or out

What size cable would you expect to find on ASTM Grade 2 personal protective grounds?

1/0

If a = 2 and b = 3, find the value of 1/a - 1/b + 1/ab

1/3

What is the Minimum Tensile (Strength) (Ibf/in^2) for bolt with 3 radial lines?

105K

What size cable would you expect to find on ASTM Grade 1 personal protective grounds?

2

Calculate the net inductance value of a circuit having four parallel inductors, each having a rating of 8 Henry.

2 H

One advantage of using ACSR instead of copper conductors for a distribution line is: 1. Higher conductivity 2. Greater mechanical strength 3. Compact size 4. Allow for shorter spans 5. Can be buried directly

2. Greater mechanical strength because of steel center

In the context of cable testing, what is the main reason given for the limited adoption of methods such as tan-delta testing and off-line and on-line partial discharge testing? 1. Lack of equipment availability 2. High cost of testing equipment 3. Difficulty in interpreting test results 4. Insufficient personnel training

2. High cost of testing equipment

Which portion of the transmission system experiences faults most frequently? 1. Transformers 2. Overhead lines 3. Alternators 4. Underground cables

2. Overhead lines

What does OSHA require regarding the testing of rubber safety equipment? 1. Testing before each use 2. Periodic electrical tests as specified in the regulations

2. Periodic electrical tests as specified in the regulations

When dealing with an IEC 61850 system, which of the following would be considered an IED? 1. Motor starter 2. Protective Relay 3. Substation communication bus 4. Logical node

2. Protective Relay

What is a solution to prevent oxidization in aluminum busbars? 1. Coating with copper strips 2. Tin plating at bar joints 3. Using high-strength aluminum alloys 4. Applying a protective layer of plastic

2. Tin plating at bar joints

What is the term often used to refer to a concrete-encased electrode? 1. Concrete-core grounding rod 2. Ufer ground 3. Zinc-galvanized electrode 4. Electrical enclosure system

2. Ufer ground

The easiest way to change the output of a transformer is by _______ . 1. adjusting the utility source voltage 2. changing the number of turns in the windings 3. adding reactors in series 4. capacitive source switching 5. local controls

2. changing the number of turns in the windings

What size cable would you expect to find on ASTM Grade 3 personal protective grounds?

2/0

What size cable would you expect to find on ASTM Grade 6 personal protective grounds?

250 kcmil

How does the number of pixels in an array affect the quality of a thermal image? 1. More pixels result in a higher frame rate for the image 2. Higher pixel count makes the image appear warmer 3. Greater pixel count leads to a sharper and more detailed thermal image 4. Fewer pixels improve the color contrast in the image

3. Greater pixel count leads to a sharper and more detailed thermal image

According to OSHA 29 CFR 1910.332, who must receive training in electrical safety due to facing a higher-than-normal risk of electrical accidents? 1. Maintenance personnel 2. Painters 3. Industrial machine operators 4. Mechanics

3. Industrial machine operators

Which type of electrical drawing is specifically used to illustrate the electrical distribution system of a multilevel building? 1. One-line Diagram 2. Schematic Diagram 3. Riser Diagram 4. Block Diagram

3. Riser Diagram

What size cable would you expect to find on ASTM Grade 4 personal protective grounds?

3/0

What size cable would you expect to find on ASTM Grade 7 personal protective grounds?

350 kcmil

A given 12VDC circuit measures a resistance of 3 ohms, how many amperes flow through the circuit?

4

Which of the following components would you not expect to find inside an Automatic Transfer Switch? 1. Engine start control 2. Voltage relay 3. Interlocks 4. Current balance relay 5. Logic panel

4. Current balance relay

Which of the following is NOT considered a grounding electrode according to NEC Section 250.52? 1. Ground Rings 2. Metal Underground Water Pipes 3. Other Local Metal Underground Systems or Structures 4. Electrical Appliances

4. Electrical Appliances

What does LEL stand for? 1. Limited electrical level 2. Lower electrical limit 3. Limited explosive level 4. Lower explosive limit

4. Lower explosive limit

When should arc-rated gloves be used? 1. When handling sharp objects 2. When working in wet conditions 3. When insulating rubber gloves are required 4. When exposed to thermal hazards

4. When exposed to thermal hazards ??

Before personnel are allowed to operate a power circuit breaker they must first understand the ________ of the breaker. 1. construction 2. operating principles 3. hazards 4. all of the above

4. all of the above

A test meter that uses a scale and pointer to indicate values is a(n) _____ meter. 1. needle 2. null 3. digital 4. analog

4. analog

A multimeter is device that is connected: 1. Low impedance, series 2. Low impedance, parallel 3. high impedance, series 4. high impedance, parallel

4. high impedance, parallel

What size cable would you expect to find on ASTM Grade 5 personal protective grounds?

4/0

What is the primary danger associated with burned-out control lights in switchgear? 1. They can cause electrical shock hazards 2. They may lead to increased energy consumption 3. They might affect the accuracy of voltage readings 4. It could reduce visibility when the room lights are off 5. Its possible protective devices will not function

5. Its possible protective devices will not function

If X = 5, Y = 6, then: XY(X^2 - Y) 370 570 840 930

570

What is 4^3

64

Find the product of 5.09 and 1.4 rounded to the nearest tenth.

7.1

And what format are schedules typically expressed in electrical distribution drawings? A. As project timelines B. Tabular form C. Block diagrams D. Single line diagrams E. Three line diagrams

?

As a battery starts discharging, its internal voltage decreases.

?

What is the purpose of a pre-job brief (PJB)? To document work procedures involved in a job To identify and communicate relevant hazards To provide a checklist for personal protective equipment (PPE) To review changes in scope during the course of work

???

When would a cable with thicker insulation than specified in industry standards be recommended? A. When using a cable on an ungrounded system B. When the protective relay is designed to de-energize the system within one hour C. When Maxximum system reliability is desired D. When the cable is rated for two KV or less

A. When using a cable on an ungrounded system

What is a common chemical which has an NFPA 704 rating of Blue = 1, Red = 3, Yellow = 0, and White = blank? A. Gasoline, B. Acetone C. Nitrogen

Acetone, Nitrogen, Gasoline

What type of cable is an ACSR cable?

Aluminium-conductor steel-reinforced cable

What is the definition of a surge arrest according to the national electrical code (NEC)? A. Advice that stores surge current to prevent follow current flow B. A device that limits surge voltages by discharging surge current to ground and can repeat this function C. A device that creates airdrops to prevent search voltage from reaching electrical equipment D. A device that dis charges surge current to earth ground and prevents the flow of lightning energy.

B. A device that limits surge voltages by discharging surge current to ground and can repeat this function

What is one reason for the popularity of aluminum busbars? A. Aluminum is more conductive than copper B. Aluminum is cheaper and more readily available C. Aluminum busbars are more rugged and durable D. Aluminum busbars can withstand higher temperatures

B. Aluminum is cheaper and more readily available

Article of a substance where it's still l retains its properties is a ______. A. Endorphin B. Module. C. Atom D. Element.

C. Atom

If an alternate emergency power source lacks adequate capacity to carry the entire connected load, it must have automatic selective load pickup and load shedding to ensure adequate power in which order of priority, according to NFPA 70? a. Legally required standby circuits b. Optional standby circuits c. Emergency circuits

CAB

Arc flash incident energy is expressed in:

Calories/cm^2

Lock Out / Tag Out procedures:

Control energy for the purpose of safety

Line voltage and phase voltage are the same in the ____ configuration.

Delta

Work performed on an energized electrical system that is not placed into an electrically safe condition is __________.

Energized

New SF6 gas is often more reliable and less expensive than using reconditioned SF6 gas as an electrical insulator. True or false

False

Type 1 hard hats are a good choice for protection against blows to the top and sides of the head. True or False

False Type 1 only protects top of head.

Arc flash gloves provide electrical shock protection. True or False

False why ????

Capacitance is measured in:

Farads

Which test would be required for a 15kV switch?

Hipot

The basic law of electricity known as "ohms law" is given by the formula: I = R/E I = E/R R = EI R = IE

I = E/R

What is IEC 61850?

IEC 61850 is an international standard defining communication protocols for intelligent electronic devices at electrical substations. It is a part of the International Electrotechnical Commission's (IEC) Technical Committee 57 reference architecture for electric power systems

The henry is a unit of measurement of:

Inductance

Define: Not readily accessible to persons unless special means for access are used

Isolate

Electric Vehicle (EV) chargers are categorized into different levels based on their power output, charging capabilities, and intended usage. Which level is exclusively designed for public charging stations? Level 1 Level 2 Level 3 Level 4

Level 3

In Y-connected sources and loads, which are greater, line voltages or phase voltages?

Line voltages greater than phase voltages (and line currents equal to phase currents)

Who has the authority to enforce The NEC?

Local authority having jurisdiction

When an electric current flows through an inductor, energy will be stored in the form of a:

Magnetic Field

Who is the main federal agency charged with the enforcement of safety and health legislation?

Occupational Safety and Health Administration

1. When may hard hats be worn backwards?

Only when properly marked

Which of the procedures is not in accordance with NETA specifications when acceptance testing a 400A sealed molded-case circuit breaker?

Open case and inspect/clean contacts

System voltage could be read through a micro processing relay by which of the following? PTs, CTs, Phase Angle, Main Breaker interrupting current

PTs

Some motors are constructed so that they will operate on either of two voltages. When they are connected to operate on the lower of the two voltages, the windings are connected in: Series Parallel

Parallel

Face shields, Safety goggles, and acid/caustic coverings are called:

Personal Protective Equipment

Which of the following tests is not optional for new AC induction motors in accordance with NETA standards? Partial discharge Bearing temperature Vibration Current signature Space heater

Space heater

Which type of cables if used for LV conductors? THHN SIS RH MV-905

THHN

What is the primary role of reclosers in distribution networks? To ensure extended power outages during fault conditions. To automatically restore power without human intervention. To enhance system performance through network automation. To provide multiple ways to provide power to feeders.

To automatically restore power without human intervention.

Each switchboard used as service equipment should be provided with a main bonding jumper. True or False

True

Feeder taps are permitted to be located at any point on the load side of the feeder overcurrent protective device. True or false

True

Schematic diagrams should always be drawn with switches and contacts shown in a de-energized position. T or F

True

Type II rubber gloves are more ozone-resistant than Type I gloves. True or False

True

Voltage does not flow, but is the "pressure" that makes current flow. True or False

True

The ungrounded conductor is one of the two conductors through which normal circuit current flows. T or F

True...why Grounded Wire - return/neutral. Grounding Wire - a safety wire that has intentionally been connected to earth

What type of hard hats are a good choice for protection against blows to the top and sides of the head?

Type 2

What type of hard hats are a good choice for protection against blows to the top of the head?

Type I

Which device can condition power for distribution to servers, networking hardware, telecom equipment, and other devices located within a data center? UPS PDU RPP ATS MTS

UPS

What is Apparent Power & its unit?

VA - the power the grid must be able to withstand

What is Reactive Power & its unit?

VAR - represents electrical energy stored in the coil that then flows back to the grid

What is Real Power & its unit?

W - the power actually consumed due to the resistive load

The ________ section of a switchboard receives power from the service section and feeds it to various downstream loads.

distribution

What is Power Factor & its unit?

kW - The ratio between real power and apparent power is known as power factor. Power factor must be as close as possible to one

One of the main functions of personal protective grounds is to provide a _______ impedance path for a short circuit. high low solid extra

low

If a hard hat sustains impact it should be _____.

replaced

If a hard hat sustains impact it should be _____. inspected for damage repaired if possible replaced depends on the situation

replaced

---:|:|-10V-- Which side of the battery has the higher electric potential energy?

right side

Creating an electrically safe work condition is the most effective way to prevent any type of injury related to electrical hazards.

true?

The Limited Approach Boundary should never be crossed by a/an ____________ person, unless escorted and wearing the appropriate PPE.

unqualified