Basic Electricity
6
120
60
150
Power
Current
Potential
Inductance
Peak to peak amplitude
Root mean square (RMS) value
A corresponding current sine wave
All of the above
Bi-directional
Always constant
Safer
Faster
W
VA
VAR
Capacitive load
Source volage times the current
Total voltage applied to the circuit
Current flowing through a switch
Average of the wattage consumed by each resistor
Watts*1.732*volts
Watts/(volts*amps*1.732)
Volts/amps*1.732
Watts/(volts*amps*1.414)
0.95 lagging
0.95 leading
0.85 leading
0.85 lagging
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Preventing AC from alternating above and below 0 volts
Making DC alternate above and below 0 volts
Changing watts into Horse Power
Correcting Power Factor
Allow current flow in 2 directions like a hydraulic motor
Prevent current flow in one direction similar to a chech valve
Monitor current flow like a flow meter
Create flow like a hydraulic pump
Size
Length
Insulation
Temperature
E=P/I
E=I*R
E=√(P*R)
All of the above
Amps
Ohms
Volts
Watts
Each component drops a different amount of voltage depending on its resistance
Each component has a different amount of current running through it unless all the resistive values are identical
The total resistance will always be larger than the largest individual resistance
All of the above
It would become maximum value
It would become zero
It would stay the same
It would decrease only slightly
2v
5v
20v
50v
Voltage
Current
Resistance
All of the above
Ammeter
Digital Multi-Meter
Insulation resistance meter
Torque Wrench
Voltage output
Frequency
Current output
VARs
2 watt meters
Phase rotation meter
Clamp-on ammeter
2 voltmeters
Positive lead closest to the stripe, negative lead on the opposite end yields 0.5v
Negative lead closest to the stripe, positive lead on the opposite end yields 0.5v
Positive lead closest to the stripe, negative lead on the opposite end yields an open
B&C answers must be true or the test is incomplete
20KW
13KW
60KW
5KW
Yellow, orange, brown
Red, white, blue
Black, red, blue
Brown, orange, yellow
Resistor, value
Transistor, base
Diode, anode
Diode, cathode
1 and 3
4 and 2
1 and 2
3 and 4
0 AWG
00 AWG
4 AWG
20 AWG
Terminate one end only
Terminate to ground
Terminate both ends to ground
Shields should never be left un-terminated
Potential transformers
Current transformers
Auto transformers
Isolation transformers
In series with the load
In series with the neutral
So they will protect the circuit before other safety devices
So they can be easily removed and replace after failure
Fuse
Ratchet, pivot, pawl
Silicon Controlled Rectifier (SCR)
Magnetic Circuit Breaker
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