Mikey’s

Question 1

Electric energy measured in

Answer 1

Joules

Question 2

Apparent power

Answer 2

Is the vector sum of true power plus reactive power. Volt x Amp = VA

Question 3

Electrical resistance

Answer 3

Measure in ohms. R = V/I

Question 4

Power

Answer 4

Ability of electrical energy to do useful work in the form of heat; making light, making motion

Question 5

True power

Answer 5

Power available for useful work

Question 6

Electrical pressure, EMF, measure in

Answer 6

Volts

Question 7

Eddy currents

Answer 7

Energy lost, caused by allowing an induced current to flow in the core material. Can be eliminated by a laminated core

Question 8

Hysteresis

Answer 8

Energy lost caused by reversing the magnetic field in the core as magnetizing ac current rises and falls

Question 9

ELI the ICE man

Answer 9

ELI- volt leads current in an inductor

ICE- current leads voltage in a capacitor

Question 10

Waveform starting to the right of zero?

Answer 10

Lagging

Question 11

Power factor

Answer 11

When true power is equal to the apparent power the PF = 1 or 100%

Question 12

Electrical inductance is measure in

Answer 12

Henrys

Question 13

Ac voltage opposition by a capacitor is measure in

Answer 13

Capacitive reactance

Question 14

Short circuit

Answer 14

Zero resistance, maximum current flow, voltage at short is zero

Question 15

Open circuit

Answer 15

Infinity resistance, zero current, full voltage across open

Question 16

Good diode

Answer 16

Will register a value of .3 or .7 with leads in one direction and OL with leads opposite

Question 17

Bad diode

Answer 17

Will register OL in both directions or a value of 0.00 in both directions

Question 18

Delta Current

Answer 18

I line = I coil x 1.732

Question 19

Wye current

Answer 19

I line = I coil

Question 20

AC voltage- Peak Voltage

Answer 20

1.414 x Vrms

Question 21

AC -

V peak to peak

Answer 21

V peak x 2

Question 22

Single phase Apparent Power

1ph AP

Answer 22

AP = V coil x I coil

Question 23

Kilo

Answer 23

10 to the 3rd

1000

Question 24

Mega M

Answer 24

10 to the 6th

1,000,000

Question 25

Giga G

Answer 25

10 to the 9th | 1,000,000,000

Question 26

Milli m

Answer 26

10 to the -3 | .001

Question 27

Micro u

Answer 27

10 to the -6

Question 28

When working with a CT …

Answer 28

Ground the secondary

Question 29

R = V/I

Answer 29

Circuit resistance is directly proportional to applied voltage and inversely proportional to current flow

Question 30

CT Burden

Answer 30

Secondary load of a current transformer

Question 31

Iron Losses

Answer 31

Losses due to hysteresis AND eddy currents

Question 32

Copper losses

Answer 32

Energy lost due to the ohmic resistance of the primary and secondary windings

Question 33

In a capacitive circuit with Ac applied the AC voltage _______ the AC charging current by 90 degrees

Answer 33

Lags

Question 34

Ac voltage

Answer 34

Constantly changing. Pulling and pushing force that cause free electrons to move back and forth

Question 35

Nano n

Answer 35

10 to the -9 | .000000001

Question 36

Electrical capacitance is measured in

Answer 36

Farads

Question 37

3 phase Apparent Power

Answer 37

3 x Vcoil X Icoil | Or 1.732 x Vline x I line

Question 38

Which logic gates has output if both inputs are zero?

Answer 38

NAND, NOR, XNOR

Question 39

I’m a pure resistive circuit with AC voltage and current applied, the ac voltage and the ac current are ______ .

Answer 39

In phase

Question 40

I secondary =

Answer 40

I secondary = I primary x TR x Efficiency

Question 41

How much resistance do you want to find during a transformer insulation test

Answer 41

Expected resistance would be infinite

Question 42

Turns Ration, TR formulas

Answer 42

Np/Ns = Vp/Vs = Is/Ip Use coil values

Question 43

Waveforms starting to the left of zero are?

Answer 43

Leading

Question 44

Ac current

Answer 44

Flow of free electrons measured in amperes

Question 45

In an inductive circuit with ac applied, the ac voltage _____ the ac current by 90 degrees.

Answer 45

Leads

Question 46

What is the combination of reactance and resistance measured in?

Answer 46

Impedance

Question 47

Dc voltage

Answer 47

Positive pulling and negative pushing force. Dc does not change polarity

Question 48

Ac current opposition by an inductor is measure in…

Answer 48

Indicative reactance

Question 49

Dc current

Answer 49

Free flow of electrons between two points of different polarity

Question 50

Electrical conductance is measure in

Answer 50

Siemens

Question 51

Electrical work is measured in

Answer 51

Watts

Question 52

I = V/R

Answer 52

Current flow is directly proportional to voltage and inversely proportional to resistance

Question 53

V = IR

Answer 53

Voltage is directly proportional to current and resistance

Question 54

TRANSFORMERS | Delta configurations

Answer 54

I line = I coil x 1.732 | V line = V coil