Review fundamentals
Transcript of Review fundamentals
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A 100µF Capacitor and 100KΩ Resistor will create a Time Constant of ________ .
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What is the voltage across the 100µF Capacitor after two (2) Time Constants
with 200VDC applied?
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The relationship between Current and Voltage in a Capacitive or Inductive Circuit
is they are in phase with each other.True or False
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__________ is needed to induce a voltage in a wire with the presence of a magnetic
field.
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NM Cable is better known by the name _____________ .
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Transformers are rated in _____________ .
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The phase difference of single-phase 240VAC is _____ .
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A 10:1 Transformer is a ________ Transformer.
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A 1:10 Transformer is a __________ Transformer.
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A 10:1 Transformer has 500 turns in the Primary Winding; how many turns are in
the Secondary Winding?
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In a 3Ө Power System, the phase separation of the Power Legs is
______________ .
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For general wiring, 30A could be run with _____ AWG wire.
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A 6AWG wire is smaller than #12 Wire?True or False
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The measured value of 36VAC has a peak Value of ___________ .
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The type of voltage measured at the Secondary of a Transformer is
______________ .
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Rectified AC Voltage is called ___________ Voltage.
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The insulation colors of a grounded conductor are________ or ________ .
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Grounding Conductors may be uninsulated (bare) or have insulated colors of _____ or
_____ .
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The Leading component in an Inductive Circuit is ____ .
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If the Source Voltage is doubled with the resistance remaining the same, the current
will _____________ .
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The total resistance in a parallel circuit is always ______ than the smallest Branch
resistance.
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If the Source Voltage remains the same, but the resistance increased, the current will
_______ .
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Two (2) 60W filament light bulbs are connected across 120VAC; the total circuit
current will be _______ .
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If a resistor with a color code of RED, RED, BRN was added in parallel to an
existing parallel circuit, the circuit current will _____ .
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If a capacitor was connected across the output of a rectifier, the Average Voltage
would _____________ .
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In your home, if the kitchen light and television were ON, what would happen to the current when the microwave was turned
ON?
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Kirchoff’s Law of current states that the sum of the currents entering and leaving a
point is equal to zero. True or False
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Turning on a room Light from 4 locations requires the use of _____ 3-Way Switches.
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The symbols to the right are named: (One of the descriptions are listed below.)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
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For the circuit below, the Transformer Primary has 120Vrms applied and has a ratio of 10:1. The secondary voltage is ____________; the voltage monitored from points C to D is ____________ .
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In the signal representations below, the Peak Voltages are _________and _________; the Average Voltage is __________; and, the rms value is __________ .
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From the signal waveforms below, the 120V single phase is _____ ; the inductive phase Shift is ______; the in-phase waveform is _____; the 240 single phase is _______; and, the capacitive phase shift is _____ .