Exercises
Put your electrical trade knowledge to the test with this practical assessment for aspiring electricians, students, and skilled trades professionals. Explore core topics in residential wiring, including hot-wire color codes, grounding, AC current, circuit breakers, transformers, GFCI outlets, and AWG wire sizing. You will also review essential electrical tools, such as wire strippers and current-measuring devices, along with critical safety practices like de-energizing circuits and inspecting equipment. Take the quiz to assess your understanding of foundational electrical concepts and safe work procedures.
Answer the questions below and check the explanation for each answer.
0/13 answered
Auto audio on: the next questions will be read aloud when you click Continue.
The black wire is typically used as a hot wire in residential electrical installations, carrying the current to the outlet or fixture.
The ground wire provides a safe path for electrical current if there is a fault in the system, preventing electric shock by directing the current into the earth.
A wire stripper is a hand tool specifically designed to remove the insulation from electric wires, ensuring the copper or aluminum conductor remains intact.
Residential homes commonly use Alternating Current (AC) because it is more efficient for distribution over long distances.
A circuit breaker interrupts the flow of electricity in the case of an overload or short circuit, preventing damage to the electrical system and reducing fire risk.
The Ohm is the unit of electrical resistance, representing how much a material opposes the flow of electric current.
An ammeter is used to measure electrical current, typically in amperes, providing insights into the circuit's functionality.
Electrical equipment should be checked regularly and according to usage and guidelines to maintain safety and performance standards.
A transformer is used to change the voltage level either stepping it up or down between circuits for efficient power distribution.
Before working on any electrical circuit, always turn off the electricity at the breaker to prevent electric shock or injury.
A screwdriver is used to tighten the screws that secure wires and devices in an outlet box, ensuring a safe and reliable connection.
American Wire Gauge (AWG) is a standardized system to denote the thickness of electrical wires, influencing their capacity to carry current.
A GFCI (Ground Fault Circuit Interrupter) outlet is designed to protect against electrical shocks by breaking the circuit when there is an imbalance.
Free CourseInstall Your Own Solar Power System
5
(1)
59m
6 exercises
Free CourseElectronic Circuits Course
5
(6)
43h25m
49 exercises
Free CourseWind Turbines
5
(4)
3h49m
19 exercises
Free CourseEngineering Circuits Analysis
5
(6)
3h11m
20 exercises
Free CourseElectronics - Nanoelectronics: Devices and Materials
4.8
(44)
40h15m
31 exercises
Free CourseBasic electronics
4.8
(22)
6h04m
30 exercises
Free CourseElectrical - Fabrication of Silicon
4.8
(26)
35h10m
28 exercises
Free CourseElectrical engineering
4.8
(26)
11h53m
20 exercises
Thousands of online courses in video, ebooks and audiobooks.
To test your knowledge during online courses
Generated directly from your cell phone's photo gallery and sent to your email
Download our app via QR Code or the links below:.
Carry knowledge in your pocket.
Download the Cursa app.
There are hundreds of free courses available, with a free certificate of completion that is saved in your mobile image gallery.
Download the app to access the Course Completion Certificate for Free.
+ 10 million
students
Free and Valid
Certificate
60 thousand free
exercises
4.8/5 rating in
app stores
Free courses in
video and ebooks