Chapter 12
The unit of measurement for current.
What is amperes?
The unit of measurement for electrical power.
What is Watt's?
Takes one form of energy and turns it into an electrical signal.
A test performed to determine if a line within a circuit is opened or closed.
What is a continuity test?
The most common supply voltage found in residential breaker panels.
what is 240VAC?
The unit of measurement for capacitance.
what is a farad (or microfarad)?
The relationship between true power and apparent power.
What is power factor?
Turns an electrical signal into mechanical motion.
What is a solenoid?
Assuming electrical pressure is constant, the result of increasing resistance within a circuit.
What is current is reduced?
Phasing that does not require capacitors.
What is 3-phase power?
A circuit were power distribution is divided amongst the loads.
what is a series circuit?
The constant value when calculating root mean square (RMS).
what is 0.707?
Adding impurities to a pure semiconductor.
what is doping?
You use your DMM to test voltage across a closed switch. Your meter reads.
What is 0 - 20 V?
The first thing a technician does prior to wiring or diagnosing a system.
What is checks the power source?
An atom that has a surplus or deficit of electrons.
What is ionized?
Opposition to AC current that causes voltage to lag behind current.
What is capacitive reactance?
the anode is connected to the negative side of a battery and a cathode is connected to the positive side.
What is reverse bias?
A system runs for a period of time, then trips the breaker.
What is an overload?
line 1,2, or 3 touch another line prior to a load.
What is a short circuit?
Four factors that affect the strength of an electromagnet.
what is number of turns in the winding, strength of the current, core material/construction, and length of the coil?
Four factors that determine if a load, device or component is compatible with an electrical system.
What is volts, amps, phasing, type of current (AC/DC)?
Produced when heat flows across dissimilar metals and produces electrical power.
What is the Seebeck effect?
How a technician would determine if windings in a motor are good or bad.
What is check resistance of all terminal pairings?
The amount of BTU's 1Kw will convert to.
What is 3,413 BTU's?