Home > Consumer Behavior 101 > Quizzes > Electrician Practice Test: Relay And Circuit Breakers
Electrician Practice Test: Relay And Circuit Breakers
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 61% • Most missed: “Relay gets its operating energy from”
Electrician Practice Test: Relay And Circuit Breakers
Time left 00:00
25 Questions

1. Relays for transmission line protection are
2. Which circuit breaker is installed along with wiring circuit against leakage current protection?
3. Which component ensures the safety of the line from damage
4. What is the defect in an air circuit breaker, if trips intermittently on loading?
5. Part of circuit breaker helpful in breaking the current is
6. What is the name of circuit breaker?
7. Which circuit breaker is used as a switch and protective device in the domestic wiring circuit?
8. An instantaneous relay is
9. Which relay hold their contacts in position after power is cutoff?
10. What is the purpose of back up protection?
11. What is the cause for the defect if phase to ground fault on the transmission line?
12. Back up protection is needed for
13. Percentage differential protection is used to prevent against
14. What is the defect in a oil circuit breaker if the oil heats up excessively?
15. For single frequency transients, ratio of peak restriking voltage to time between voltage zero and peak voltage is called
16. Relay gets its operating energy from
17. An ideal circuit breaker should offer
18. The tripping circuit is__________
19. What is the function of relay to the breaking operation of circuit breaker in control circuit
20. Arcing time is the time between
21. What is the function of Buchholz relay in power transformer?
22. What is the effect, if the test button marked as X’ is closed permanently in ELCB?
23. Which type of relay is used in both AC and DC supply?
24. What is the pick-up voltage in a over voltage relay indicated?
25. What is the purpose of trip coil used in circuit breakers?

⚡ Recently practiced quizzes in this topic
Live quiz activity
Consumer Behavior 101 Practice Test: The Influence of Culture on Consumer Behavior Consumer Behavior 101 Practice Test: Personality and Consumer Behavior Consumer Behavior 101 Practice Test: Basics of Consumer Behavior Consumer Behavior 101 Practice Test: The Family and Its Social Class Standing Consumer Behavior 101 Practice Test: Consumer Motivation Consumer Behavior 101 Practice Test: Consumer Perception Consumer Behavior 101 Practice Test: Communication and Consumer Behavior Consumer Behavior 101 Practice Test: Consumer Attitude Formation and Change Consumer Behavior 101 Practice Test: Basics of Consumer Research Process Consumer Behavior 101 Practice Test: Consumers and the Diffusion of Innovations
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.