Test 2 Transformers And That Flashcards
How many total degrees in a triangle?
90°
180°
120°
100°
180°
Where are triangular waves used?
1. music
2. triggering circuits
3. start-stop signals
4. power conversion amplifier
Music
The OPPOSITE side depends on?
1. The length of the side
2. The right angle
3. The angle we are referring to.
4. The coefficient of tangent.
The angle we are referring to
An autotransformer has how many windings?
1. 2
2. 1
3. 3
4. None of the above
- 1
the symbol for Impedance is?
1. R
2. 0
3. V
4. Z
Z
Where do we get skin effect?
1. In a de transmitted wave
2. In a power generator
3. In a Ac transmitted wave.
4. A transformer.
In a AC transmitted wave
A transformer cannot transform?
1. Voltage
2. Current
3. Frequency
4. Impedance
Frequency
In electrical Average is the measurement of?
1. The rectified power.
2. The Maximum voltage that is in an outlet
3. The Dc value of an AC wave.
4. The time for half an square wave to form.
The DC value of an AC wave
RMS stands for?
1. Root means square
2. Root makes sine
3. Root mixed salad
4. Root means Sangria
Root means square
What do Isolation transformers help filter?
1. Voltage spikes and Ground surges
2. Current surges and watt pulses
3. Current spikes and Voltage spikes
4. Voltage outages and Power fluctuations.
Current spikes and voltage spikes
In an Ac circuit You can only get a watt measurement from a?
1. A single phase transformer secondary side.
2. A curtent transformer
3. A Purely inductive circuit
4. A Purely resistive circuit
A purely resistive circuit
Who developed AC electricity for the 1904 World’s fair?
1. Nikolas Tesla and Westinghouse
2. Alexander graham bell and Thomas Edison
3. Bert and Ernie
4. Paul McCartney and Ringo
Nikolas Tesla and Westinghouse
In a transformer Power in is equal to?
1. Power in the armature
2. Power on the Load
3. Power out
Power out
How do we Identify the primary side or a transformer?
1. It is marked with the letter H
2. It has a larger wire attached to it
3. There are bigger letters on the primary side.
4. It has the Line attached to it
It has a line attached to it
In a transformer what are the values of voltage, current, and impedance proportional to
1.Power in the secondary
2. The amount of core material
3. The turn’s ratio
4. The frequency
The turns ratio
The toroid core is a doughnut shaped transformer where is the primary side of the transformer usually.
1. The wire running through the middle of the doughnut shape.
2. One half of the windings on the primary side of the primary side of the transfor
3. The lower half of the circle.
4. The windings around the doughnut.
The wire running through the middle of the doughnut shape.
We have a 1200VDC transformer with a secondary of 120 Volts What is the ratio?
1. 10:1
2. 1:10
3. There is no such thing
There is no such thing
We can calculate the voltage at any point of a sine wave by?
1. The cosine of the angle.
2. The sine of the angle times the peak value of the wave.
3. The tangent of the hypotenuse.
4. The frequency times the peak.
The sine of the angle times the peak value of the wave.
In a control transformer we usually have _________ primary side voltages, and _______ secondary side voltages.
1. 3,2
2. Multiple, single
3. Low, high
4. Varied, dual
Multiple, single
There are different types of cores when it comes to transformers what are they?
1. H type, core type and ship type
2. Shell type core type and A type
3. Shell type H type and core type
4. Core type, round type, fractal type.
Shell type H type and core type
Why does DC voltage transmit better than AC?
1. The electrons flow on the outside of the conductor
2. There is a magnetic field amplification
3. The electrons flow through the whole wire
4. Because it is direct.
The electrons flow through the whole wire
There are different types of cores used in transformers the H type is loften used in?
1. High voltage transformers
2. Low voltage transformers
3. Autotransformers
4. Decepticons
High voltage transformers
The Hypotenuse is directly across from?
1. Chucky cheese
2. The right angle
3. The opposite side
4. The magnetic field
The right angle
The Hypotenuse is directly across from?
1. Chucky cheese
2. The right angle
3. The opposite side
4. The magnetic field
The right angle
What is the wave form that gives us a linear time measurement?
1. A Torque wave
2. A Sine Wave
3. A Triangular wave
4. A Square wave
Sine wave
transformer cannot transform?
1. Voltage
2. Current
3. Frequency
4. Impedance
Frequency
transformer cannot transform?
1. Voltage
2. Current
3. Frequency
4. Impedance
Frequency
Peak to peak is the measurement of?
- The maximum positive and maximum negative points of a sine wave
- The maximum voltage that is an outlet
- The difference between Shaq and Danny De Vito
- The time a single sine wave is made
The maximum positive and maximum negative points of a sine wave
In an AC circuit you can only get true power in a?
1. Smart ass Trade school teacher
2. A current transformer
3. A Purely inductive circuit
4. A Purely resistive circuit
A purely resistive circuit
In a transformer Power out is theoretically equal to?
1. Power in the armature
2. Power on the Load
3. Power in
4. Power produced by the eddy currents.
Power in
14) The DC value that we get from a sine wave is called?
1. Average
2. Voltage
3. Real
4. Pulsed
Average
