Test 2 Transformers And That

Question 1

How many total degrees in a triangle?
90°
180°
120°
100°

Answer 1

180°

Question 2

Where are triangular waves used?
1. music
2. triggering circuits
3. start-stop signals
4. power conversion amplifier

Answer 2

Music

Question 3

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.

Answer 3

The angle we are referring to

Question 4

An autotransformer has how many windings?
1. 2
2. 1
3. 3
4. None of the above

Answer 4

2. 1

Question 5

the symbol for Impedance is?
1. R
2. 0
3. V
4. Z

Answer 5

Z

Question 6

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.

Answer 6

In a AC transmitted wave

Question 7

A transformer cannot transform?
1. Voltage
2. Current
3. Frequency
4. Impedance

Answer 7

Frequency

Question 8

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.

Answer 8

The DC value of an AC wave

Question 9

RMS stands for?
1. Root means square
2. Root makes sine
3. Root mixed salad
4. Root means Sangria

Answer 9

Root means square

Question 10

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.

Answer 10

Current spikes and voltage spikes

Question 11

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

Answer 11

A purely resistive circuit

Question 12

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

Answer 12

Nikolas Tesla and Westinghouse

Question 13

In a transformer Power in is equal to?
1. Power in the armature
2. Power on the Load
3. Power out

Answer 13

Power out

Question 14

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

Answer 14

It has a line attached to it

Question 15

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

Answer 15

The turns ratio

Question 16

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.

Answer 16

The wire running through the middle of the doughnut shape.

Question 17

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

Answer 17

There is no such thing

Question 18

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.

Answer 18

The sine of the angle times the peak value of the wave.

Question 19

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

Answer 19

Multiple, single

Question 20

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.

Answer 20

Shell type H type and core type

Question 21

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.

Answer 21

The electrons flow through the whole wire

Question 22

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

Answer 22

High voltage transformers

Question 23

The Hypotenuse is directly across from?
1. Chucky cheese
2. The right angle
3. The opposite side
4. The magnetic field

Answer 23

The right angle

Question 24

The Hypotenuse is directly across from?
1. Chucky cheese
2. The right angle
3. The opposite side
4. The magnetic field

Answer 24

The right angle

Question 25

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

Answer 25

Sine wave

Question 26

transformer cannot transform?
1. Voltage
2. Current
3. Frequency
4. Impedance

Answer 26

Frequency

Question 27

transformer cannot transform?
1. Voltage
2. Current
3. Frequency
4. Impedance

Answer 27

Frequency

Question 28

Peak to peak is the measurement of?

1. The maximum positive and maximum negative points of a sine wave
2. The maximum voltage that is an outlet
3. The difference between Shaq and Danny De Vito
4. The time a single sine wave is made

Answer 28

The maximum positive and maximum negative points of a sine wave

Question 29

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

Answer 29

A purely resistive circuit

Question 30

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.

Answer 30

Power in

Question 31

14) The DC value that we get from a sine wave is called?
1. Average
2. Voltage
3. Real
4. Pulsed

Answer 31

Average