Grants FINAL Expectations

Take Up for 1/2 "

5 "

Take Up for 3/4 "

6 "

Take Up for 1 "

8 "

Take Up for 1 1/4 "

11 "

Multiplier & Shrink 22 1/2°

2.5 & 3/16”

Multiplier & Shrink 10°

6 & 1/16"

Multiplier & Shrink 30°

2 & 1/4"

Multiplier & Shrink 45°

1.4 & 3/8"

Multiplier & Shrink 60°

1.2 & 1/2“

120/208v Color Code

Black, Red, Blue

277/480v Color Code

Brown, Orange, Yellow

What is EOLR in a fire alarm system?

End-of-Line Resistor

What is a NAC circuit?

notification appliance circuit

What is IDC in a fire alarm system?

Initiating Device Circuit

Explain how a lighting power pack works?

converts AC mains electricity to operate DC powered occupancy sensor or sensors

What is an occupancy senor used for?

to detect the presence of a person

Where would a photocell be used?

to control outdoor lighting, such as security lights, floodlights, and landscape lighting

What is 0-10v dimming when used in luminaires?

the dimmer generates a control voltage between 0V and 10V, depending on the desired brightness level

How many degrees of bends can you have in a run of emt?

360°

How Far from a box does a 1/2 " EMT conduit need to be strapped?

A strap must be placed within 3 feet of any outlet, panel, disconnect, or other juncture

What is overcurrent protection?

protect against the potentially dangerous effects of overcurrent, such as an overload current or a short-circuit current, which creates a fault current

What is a Short Circuit?

An abnormal connection (including an arc) of relatively low impedance, whether made accidentally or inten-tionally, between two or more points of different potential.

What is an overload when dealing with overcurrent protection?

consequence of the connected load exceeding the current that the circuit was designed to carry

What does it mean when a breaker has a marking that says 10k AIC?

interrupt current up to 10,000 Amps without shorting to ground or exposing live parts

What is the Volume of a 4sq box?

21 cubic inches

What is the Volume of a deep 4sp box?

30.3 cubic inches

Single-Phase Transformer

3-Phase 4 Wire Wye

3 Phase 4 Wire Delta

Single Phase 3 Wire System

Define

Delta Delta

Define

Wye Wye

Define

Delta Wye

Difference between two pole and 4 way switch

A two-pole switch typically has two terminals. It is designed to control a light or device from one location. A four-way switch, on the other hand, has four terminals and is used in conjunction with two other switches (usually two three-way switches) to control the same light or device from three or more locations.

If there are 7 locations to turn a light off how many three ways are needed?

2

Strapping distances for MC

12 in from Box, than every 6 ft

How deep is Deep Strut

1 5/8”

How deep is Shallow Strut

7/8”

What is the purpose of a feeder?

All circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device.

Branch Circuit

The circuit conductors between the final overcurrent device protecting the circuit and the outlet (s).

Multiwire Branch Circuit

branch circuit that consists of two or more ungrounded conductors that have a voltage between them, and a neutral conductor that has equal voltage between it and each ungrounded conductor of the circuit and that is connected to the neutral conductor of the system.

What are two types of grounding electrodes

ground ring and concrete-encased electrode

How many neutrals are needed when pulling circuits 2,4,6,27,28?

5 or 3

What does HACR Breaker meaning?

Heating/Air Conditioning/Refrigeration

Define

Plug fuse

Define

Cartridge Fuse

A circuit breaker is an?

Overcurrent Device

Will a fuse that is rated at 250v fit in a 600v rated disconnect?

No

What is the difference between a combination AFCI and a Duel function AFCI/GFCI

Combination - for Series and Parallel Arcs

Duel Function - Protection of AFCI and GFCI

Define the Fault

Arcing Fault

Define the Fault

Bolted Fault 3 Phase

Triple Nickel

Box Fill

Transformer Calculations

T or F Mud rings have a volume that adds to the volume of a Box?

True

T or F Raised covers have a volume that adds to the volume of a Box?

True

What will your meter display if you are measuring voltage across a fuse that is working properly?

0V

What will your meter display if you are measuring voltage across a fuse that is not working properly?

120V

What will your meter display if you are measuring voltage across a closed switch that is controlling a 120V light fixture?

0V

What will your meter display if you are measuring voltage across a open switch that is controlling a 120V light fixture?

120V

Socket/Wrench Sizes

⅜” bolt and nut = 9/16” socket or wrench

¼” bolt and nut = 7/16” socket or wrench

Strapping distances for FMC

12 in from box than every 4.5 FT