Things You Should Know
The acronym "OEM" stands for?
What product does "D" refer to?
Din Rail
Utilites generate electrical power by applying the principles of
Rotating many wires by many powerful magnets
What are hertz
Cycles of alternating electric currents per second
What product is shown in this picture?
Wireway
Which direction does current flow?
From high potential to low potential
What is the formula for Ohm's Law?
Voltage = Current * Resistance
V = I * R
What piece of equipment does #14 represent?
Ground Rod
True or False:
Electricity must complete a circle and eventually return to the power source
True
_____ is the measure of electrons flowing through a circuit
Amperes
What piece of equipment does #10 represent?
Disconnect or safety switch
A ______ consumes energy to produce some type of work
Load
What do each of these five symbols/abbreviations stand for? 100 points per correct answer.
1. EMF
2. Ω
3. AC
4. DC
5. LED
1. EMF - Electro-Motive Force
2. Ω - Ohms
3. AC - Alternating Current
4. DC - Direct Current
5. LED - Light-Emitting Diode
List the five categories of the EPEC Triangle in order starting with where the power enters from the utility. 100 points for each one in correct order.
1.Electrical Protection
2.Controls
3.Loads
4. Service Entrance
5.Distribution System and Physical Protection
1. Service Entrance
2. Electrical Protection
3. Distribution System and Physical Protection
4. Controls
5. Loads
True of False:
When a difference exists between construction plans and the specification for a project, and you are unable to consult with the customer to clarify, the specification takes precedent.
True