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# Review fundamentals

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### Review fundamentals

1. 1. A 100µF Capacitor and 100KΩ Resistorwill create a Time Constant of ________ .
2. 2. What is the voltage across the 100µFCapacitor after two (2) Time Constants with 200VDC applied?
3. 3. The relationship between Current andVoltage in a Capacitive or Inductive Circuit is they are in phase with each other. True or False
4. 4. __________ is needed to induce a voltagein a wire with the presence of a magnetic field.
5. 5. NM Cable is better known by the name _____________ .
6. 6. Transformers are rated in _____________ .
7. 7. The phase difference of single-phase 240VAC is _____ .
8. 8. A 10:1 Transformer is a ________ Transformer.
9. 9. A 1:10 Transformer is a __________ Transformer.
10. 10. A 10:1 Transformer has 500 turns in thePrimary Winding; how many turns are in the Secondary Winding?
11. 11. In a 3Ө Power System, the phase separation of the Power Legs is ______________ .
12. 12. For general wiring, 30A could be run with _____ AWG wire.
13. 13. A 6AWG wire is smaller than #12 Wire? True or False
14. 14. The measured value of 36VAC has a peak Value of ___________ .
15. 15. The type of voltage measured at the Secondary of a Transformer is ______________ .
16. 16. Rectified AC Voltage is called ___________ Voltage.
17. 17. The insulation colors of a groundedconductor are________ or ________ .
18. 18. Grounding Conductors may be uninsulated(bare) or have insulated colors of _____ or _____ .
19. 19. The Leading component in an Inductive Circuit is ____ .
20. 20. If the Source Voltage is doubled with theresistance remaining the same, the current will _____________ .
21. 21. The total resistance in a parallel circuit isalways ______ than the smallest Branch resistance.
22. 22. If the Source Voltage remains the same, but the resistance increased, the current will _______ .
23. 23. Two (2) 60W filament light bulbs areconnected across 120VAC; the total circuit current will be _______ .
24. 24. If a resistor with a color code ofRED, RED, BRN was added in parallel to an existing parallel circuit, the circuit current will _____ .
25. 25. If a capacitor was connected across theoutput of a rectifier, the Average Voltage would _____________ .
26. 26. In your home, if the kitchen light and television were ON, what would happen tothe current when the microwave was turned ON?
27. 27. Kirchoff’s Law of current states that thesum of the currents entering and leaving a point is equal to zero. True or False
28. 28. Turning on a room Light from 4 locationsrequires the use of _____ 3-Way Switches.
29. 29. The symbols to the rightare named: (One of thedescriptions are listedbelow.)A. Relay coilB. DiodeC. Circuit BreakerD. Full Wave BridgeE. SPST SwitchF. GroundG. 4-Way SwitchH. TransformerI. CapacitorJ. Wire ConnectionK. FuseL. No wire connectionM. N.C. Push ButtonN. DPST SwitchO. SPDT SwitchP. ResistorQ. N.O. Push ButtonR. DPDT Switch
30. 30. For the circuit below, the Transformer Primary has 120Vrms applied andhas a ratio of 10:1. The secondary voltage is ____________; the voltagemonitored from points C to D is ____________ .
31. 31. In the signal representations below, the Peak Voltages are _________and_________; the Average Voltage is __________; and, the rms value is __________ .
32. 32. From the signal waveforms below, the 120V single phase is _____ ; the inductivephase Shift is ______; the in-phase waveform is _____; the 240 single phase is_______; and, the capacitive phase shift is _____ .