Slides (59)
1 -
Team Members
2 -
Lesson 1: Power Factor in a series circuit is defined as resistance divided by ___?
1. Inductive Reactance
2. True Power
3. Watts
4. Capacitive Reactance
5. Impedance
3 -
Lesson 1: An inductive RL Circuit will result in a ___ power factor.
1. Out of phase by 90 Degrees
2. Leading
3. Lagging
4. Capacitive
5. In Phase
4 -
Lesson 1: Power factor is defined as ___ divided by apparent power.
1. Reactive Power
2. AC Power
3. Inactive Power
4. Idle Power
5. True Power
5 -
A circuit pulling 10A of current is supplied with 208V. A meter in the circuit shows a power factor of 72%. What is the true power?
1. 1168.5 W
2. 40.67 W
3. 1744 W
4. 1497.6 W
5. 2602.9 W
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Lesson 1: The power factor for a purely resistive circuit is always __ percent.
1. 80
2. 100
3. 98
4. 95
5. 50
6. 0
7 -
Lesson 1: What is the true power of a series circuit with a voltage of 220V, a current of 12A, and a load of 3200W?
1. 4033.33W
2. 1600W
3. 3200W
4. 6400W
5. 2640W
6. 266.67W
8 -
Lesson 1: A capacitive RC circuit will result in a ___ power factor.
1. In Phase
2. Zero
3. Leading
4. Lagging
5. Unity
9 -
Lesson 1: A purely resistive circuit will result in a ___ power factor?
1. Lagging
2. 0%
3. 100%
4. 95%
5. In Phase
6. Leading
10 -
Lesson 1: Calculate the kVA for a 240V, 3phase circuit that is delivering a current of 22A.
1. 23.75 kVA
2. 18.14 kVA
3. 29.39 kVA
4. 9.13 kVA
11 -
The Least Stupid so Far
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Lesson 2: Calculate the reactive power for a factory that has a 480V, 3-phase, 750A bus that is inductive. Measured voltage is 370V and measured amperage is 445A, the connected load is 219 kW.
1. 245.63 kVAR
2. 327.77 kVAR
3. 126.44 KVAR
4. 399.15 kVAR
13 -
Lesson 2: Factory with a total load of 1,234 kVA and a power factor of 69% resulting in 187kVArs of reactive power. How many 32 kVAR units would be needed to correct the out of phase condition without causing a leading power factor?
1. 6
2. 10
3. 5
4. 4
14 -
Lesson 2: Poor power factor is normally caused by ___ loads on the service which results in the line current lagging the voltage.
1. Inductive
2. Resistive
3. In Phase
4. Capacitive
15 -
Lesson 6: What type of generator is this
1. Short Shunt Compound
2. Long Shunt Compound
3. Differential Compound
4. Cumulative Compound
16 -
Lesson 2: Poor power factor caused by motor loads can be corrected by placing ___.
1. capacitors in series with the motors
2. capacitors in parallel with the motors
3. Inductors in paralled with the motors
4. Inductors in series with the motors
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The More Smarter Ones
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Lesson 3: Current in a DC circuit will always flow in ___ direction
1. Negative
2. Positive
3. Alternating
4. One
5. Both
19 -
Lesson 3: __ leakage current can be kept to a minimum by keeping insulation clean and dry.
1. Conductive
2. Surface
3. Inductive
4. Capacitive
5. Resistive
20 -
Lesson 3: Decreasing the resistance of a circuit will cause the ___
1. Current to Increase
2. Current to Decrease
3. Current to Flucuate
4. Voltage to Flucuate
5. Voltage to Decrease
6. Voltage to Increase
21 -
Lesson 3: The ___ is a test instrument that is used for insulation breakdown.
1. Voltage Indicator
2. Tic Tracer
3. Megohmmeter
4. Thyristor
5. Continuity Tester
6. Circuit Analyzer
22 -
Lesson 3: To measure current with a clamp on ammeter the circuit must be ___.
1. Shunted
2. AC
3. Closed
4. DC
5. Open
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Lesson 3: Current unbalances for 3-phase loads should not exceed ___.
1. 3%
2. 80%
3. 20%
4. 5%
5. 10%
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Lesson 3: The ___ is a test instrument that is used to measure resistance.
1. Ohmmeter
2. Megohmmeter
3. Thyristor
4. Circuit Analyzer
5. Voltage Indicator
25 -
Who Currently Sucks the Least
26 -
Lesson 4: The international unit of frequency is the ___
1. Eggplant
2. Hertz
3. Parsec
4. Period
5. Cycle
6. Alternation
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Lesson 4: The vertical (y) axis on an oscilloscope represents the ___ of the waveform.
1. Amplitude
2. Peak
3. Duration
4. Bandwidth
5. Frequency
28 -
Lesson 4: Increasing the frequency to a motor above the standard 60 Hz will cause the motor to produce more ___.
1. Amplitude
2. Impedance
3. Noise
4. Capacitance
5. Harmonics
6. Inductance
29 -
Lesson 4: Thyristors are typically used to control large amounts of ___.
1. Current
2. Voltage
3. Saturation
4. Feedback
5. Amplification
30 -
Lesson 4: The horizontal (x) axis on an oscilloscope represents ___.
1. Time
2. Amplitude
3. Attitude
4. Voltage
5. Current
6. Magnitude
31 -
Lesson 4: An AC motor controlled by a drive unit will produce more heat when the carrier frequency is a ___ frequency.
1. Incremental
2. Harmonic
3. High
4. Fundamental
5. Low
32 -
Lesson 4: A digital logic probe is a type of ___
1. Function Generator
2. An Intelligent Tool used by Aliens on their UFO's
3. DC Voltmeter
4. AC Voltmeter
5. Voltage Indicator
33 -
Lesson 4: A signal ___ is a test instrument that can provide a known input signal to a circuit for test purposes
1. Instigator
2. Thyristor
3. Generator
4. Flare
5. Jammer
34 -
Lesson 4: Two-wire, solid state switches wired in series affect the operation of a load because of the voltage ___ across the switches.
1. Spike
2. Harmony
3. Lead
4. Lag
5. Gain
6. Drop
35 -
Lesson 4: The total current in a circuit containing a two-wire, solid-state switch is the combination of load current and ___current.
1. Operating
2. AC
3. DC
4. Stagnant
5. River
36 -
Who Currently Sucks the Least
37 -
Lesson 5: A generator coil is cutting the most lines of magnetic flux and producing maximum voltage at __ degrees of rotation
1. 90
2. 180
3. 0
4. 360
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Lesson 5: What 3 factors are necessary to induce voltage into a conductor?
1. Relative Motion
2. Harmonics
3. Saturation
4. Magnetic Fields
5. Conductor
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Lesson 5: ___ is a measure of how often a waveform is completed in relation to time.
1. Triangulation
2. Frequency
3. The Wave
4. 360 Degrees
40 -
Lesson 5: The rotating armature of a DC generator is connected to its external circuit through ___
1. Magnets
2. Commutator
3. Slip RIng
4. Brushes
5. Rotor
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Lesson 5: How do you increase the voltage output of an AC generator?
1. increase the speed of rotation
2. Increase the number of loops or turns in the coils
3. increase the magnetic field strength
4. increase the size of wire in the coils
42 -
Lesson 5: The required speed of rotation for a 8 pole generator supplying a 60 Hz load is
1. 7200rpm
2. 1200rpm
3. 15rpm
4. 900rpm
5. 480rpm
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Lesson 5: The output of a 6-pole generator rotating at a speed of 2800 rpm would be ___ Hertz.
1. 140
2. 60
3. 50
4. 467
5. 23
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Not too Dumb
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Lesson 6: When connecting 2 DC generators in parallel, the ___ fields of the 2 machines are connected in __ with each other through an equalizing connection
1.
2. Magnetic/ Opposition
3. Series/ Parallel
4. North/ South
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Lesson 6: DC generators operate on the principle of electromagnetic ___
1. Rejection
2. Repulsion
3. Injection
4. Induction
5. Propulsion
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Lesson 6: DC generators use a ___ to convert the generated AC voltage to DC output voltage
1. Brush
2. Armature
3. Commutator
4. Magnet
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Isn't Doing as Bad as Everyone Else
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Lesson 7: Power is removed from the revolving armature of an AC generator through the ___
1. Brushes
2. Armature
3. Commutator
4. Slip RIngs
50 -
Lesson 7: What is the RPM of a 4 pole alternator when it is producing 50 Hz power?
1. 480rpm
2. 1200rpm
3. 30rpm
4. 200rpm
5. 1500rpm
51 -
Lesson 7: An alternator turning at 1200 RPM is producing a 60 cycle voltage. How many stator poles are used in the alternator?
1. 6
2. 8
3. 12
4. 4
5. 2
52 -
Lesson 7: How fast must a 6 pole alternator rotate in order to produce 60 Hz power?
1. 1200rpm
2. 800rpm
3. 600rpm
4. 360rpm
53 -
Doing Alrightish
54 -
Lesson 8: In single phase generation how many times per cycle does the voltage fall to zero?
1. Six
2. One
3. Zero
4. Two
5. Three
6. Four
55 -
Lesson 8: For a wye connect system, the line current is in ___ with the phase current.
1. Parallel
2. Series
56 -
Lesson 8: The kVA ratings for 3-phase transformers are about ___ percent greater than single phase transformers of about the same frame size.
1. 50
2. 150
3. 225
4. 30
5. 100
6. 20
57 -
Lesson 8: Three-phase power is generated by rotating a magnetic field through three sets of coils arranged ___ degrees apart
1. 270
2. 30
3. 60
4. 180
5. 90
6. 120
58 -
Lesson 8: Line current is equal to phase current for a ___ connected device
1. Delta
2. Wye
59 -
Winner Winner Chicken Dinner
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