SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
Search
Test your basic knowledge |
Electrician 101
Start Test
Study First
Subjects
:
industries
,
engineering
Instructions:
Answer 27 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the unit commonly used to measure electrical energy?
The behavior of positive and negative charges is very similar to the behavior of the two poles in a magnet.
KW-H
Watt.
Stands for direct current and it is when electrons move in one direction.
2. What is DC?
Stands for direct current and it is when electrons move in one direction.
The basic unit used to measure electrical power.
In a wire conductor - there are billions of loose or free electrons - all safely in place in their fields. They're distributed evenly throughout the wire.
Most common electrical devices are set to operate as 120/240 V.
3. What is a useful characteristic that can be used in an appliance?
When current flows - the resulting work is energy. Current flow tends to heat whatever its moving through - which is a useful characteristic of an appliance.
KW-H
A magnatic field is generated that makes the motor rotate - producing mechanical power.
Electricity behaves as a water system. It must have pressure to push the water - and a drain to allow it to flow continuously.
4. What is Amperes?
KW-H
Amps or just A - is the measurement in units of the amount of electric current that flows. The rate of electron flow determines the number of amperes in a circuit. The rate of electron flow determines the number of amperes in a circuit.
In units of Amperes
Most common electrical devices are set to operate as 120/240 V.
5. What is the basic unit to measure electrical power?
Watt.
Voltage and current in a circuit. That is - voltage(in volts) times current (in amperes) equals power (in watts) P=E x I
Stands for alternating current and it is when electrons move in both directions.
Voltage or electromotive force is pressure required to force electrons into a wire. Voltage is also measured in units called Volts.
6. What is AC?
A magnatic field is generated that makes the motor rotate - producing mechanical power.
60 cycles per second.
From an electricians - pov - electricity is the movement of electrons. Electrons are atomic particles found in every substance. An electron has one main characteristic which is a negative electrical charge.
Stands for alternating current and it is when electrons move in both directions.
7. What is voltage or electromotive force?
Hertz - one cycle per second is equal to one hertz. Electricity is caused to flow through wires at a frequency of 60 cycles per second. This means electrons flow one direction - then in the reverse direction - repeating this cycle 60 times every seco
Power which is watt.
Voltage or electromotive force is pressure required to force electrons into a wire. Voltage is also measured in units called Volts.
In a wire conductor - there are billions of loose or free electrons - all safely in place in their fields. They're distributed evenly throughout the wire.
8. Electricity flows through wires In what frequency?
Most common electrical devices are set to operate as 120/240 V.
Power which is watt.
60 cycles per second.
You must multiply voltage ( involts) times current(in amperes).
9. What do you have to calculate to get the amount of electrical power?
120/240 V service.
Electrons can be forced to move by pushing more electrons to the wire. However - no electron can get into the wire unless an equal number of electrons is pushed out of the other end.
Electricity behaves as a water system. It must have pressure to push the water - and a drain to allow it to flow continuously.
You must multiply voltage ( involts) times current(in amperes).
10. How is current measured?
Voltage or electromotive force is pressure required to force electrons into a wire. Voltage is also measured in units called Volts.
Amps or just A - is the measurement in units of the amount of electric current that flows. The rate of electron flow determines the number of amperes in a circuit. The rate of electron flow determines the number of amperes in a circuit.
In units of Amperes
Stands for direct current and it is when electrons move in one direction.
11. What type of Voltage is required for new homes to have?
Most common electrical devices are set to operate as 120/240 V.
120/240 V service.
Stands for alternating current and it is when electrons move in both directions.
The electrical current flow or amperage - the rate of electron flow that passes through a cross section of wire.
12. What voltage are common electrical devices - designed to operate as?
Energy
Watt.
Most common electrical devices are set to operate as 120/240 V.
60 cycles per second.
13. What is the measurement unit of electron movement
Hertz - one cycle per second is equal to one hertz. Electricity is caused to flow through wires at a frequency of 60 cycles per second. This means electrons flow one direction - then in the reverse direction - repeating this cycle 60 times every seco
1000 watts
You must multiply voltage ( involts) times current(in amperes).
The electrical current flow or amperage - the rate of electron flow that passes through a cross section of wire.
14. What does the positive-negative attraction relate too?
The behavior of positive and negative charges is very similar to the behavior of the two poles in a magnet.
Energy
Electricity behaves as a water system. It must have pressure to push the water - and a drain to allow it to flow continuously.
Power which is watt.
15. How can electrons be forced to move?
From an electricians - pov - electricity is the movement of electrons. Electrons are atomic particles found in every substance. An electron has one main characteristic which is a negative electrical charge.
Electrons can be forced to move by pushing more electrons to the wire. However - no electron can get into the wire unless an equal number of electrons is pushed out of the other end.
E stands for voltage in volts - I stands for current in amperes - and P stands for power in watts.
A magnatic field is generated that makes the motor rotate - producing mechanical power.
16. What does an appliance need to function properly?
Stands for direct current and it is when electrons move in one direction.
Power which is watt.
Voltage or electromotive force is pressure required to force electrons into a wire. Voltage is also measured in units called Volts.
60 cycles per second.
17. What do you need to take into account when installing a electrical system?
E stands for voltage in volts - I stands for current in amperes - and P stands for power in watts.
Voltage and current in a circuit. That is - voltage(in volts) times current (in amperes) equals power (in watts) P=E x I
The design that the system is able to handle total amperage needs.
60 cycles per second.
18. What happens when current passes through a motor's field coils?
From an electricians - pov - electricity is the movement of electrons. Electrons are atomic particles found in every substance. An electron has one main characteristic which is a negative electrical charge.
A magnatic field is generated that makes the motor rotate - producing mechanical power.
120/240 V service.
In units of Amperes
19. What does P = E x I stand for?
You must multiply voltage ( involts) times current(in amperes).
Watt.
Electricity behaves as a water system. It must have pressure to push the water - and a drain to allow it to flow continuously.
E stands for voltage in volts - I stands for current in amperes - and P stands for power in watts.
20. What is WATT?
Most common electrical devices are set to operate as 120/240 V.
The basic unit used to measure electrical power.
Energy
Watt.
21. What is electricity really?
120/240 V service.
From an electricians - pov - electricity is the movement of electrons. Electrons are atomic particles found in every substance. An electron has one main characteristic which is a negative electrical charge.
You must multiply voltage ( involts) times current(in amperes).
Power which is watt.
22. What is the amperage that can be measured with a ammeter?
Most common electrical devices are set to operate as 120/240 V.
From an electricians - pov - electricity is the movement of electrons. Electrons are atomic particles found in every substance. An electron has one main characteristic which is a negative electrical charge.
In a wire conductor - there are billions of loose or free electrons - all safely in place in their fields. They're distributed evenly throughout the wire.
The electrical current flow or amperage - the rate of electron flow that passes through a cross section of wire.
23. What is 1 kilowatt equal too?
The basic unit used to measure electrical power.
Power which is watt.
1000 watts
The design that the system is able to handle total amperage needs.
24. What is going on in a wire conductor with free electrons?
25. What type of system does electricity behaves as?
KW-H
Stands for direct current and it is when electrons move in one direction.
1000 watts
Electricity behaves as a water system. It must have pressure to push the water - and a drain to allow it to flow continuously.
26. Electrical Power is the product of what?
You must multiply voltage ( involts) times current(in amperes).
Watt.
Voltage and current in a circuit. That is - voltage(in volts) times current (in amperes) equals power (in watts) P=E x I
Amps or just A - is the measurement in units of the amount of electric current that flows. The rate of electron flow determines the number of amperes in a circuit. The rate of electron flow determines the number of amperes in a circuit.
27. What is the amount of power used over a period of time?
Amps or just A - is the measurement in units of the amount of electric current that flows. The rate of electron flow determines the number of amperes in a circuit. The rate of electron flow determines the number of amperes in a circuit.
Stands for alternating current and it is when electrons move in both directions.
E stands for voltage in volts - I stands for current in amperes - and P stands for power in watts.
Energy