Question 1: An electrical fuse is a
- Protective device
- voltage limiting device
- current limiting device
- current controlling device
BASIC
NEC 2023
Electrical fuse Practice test
Free Practice test Electrical fuse Question and answers
TOPICS COVERED
Electrical Practice Questions
How this test works
Read each question carefully
Look for absolute words like always / never — they often distinguish the right answer.
Manage your time
You have 15 min for 10 questions. Skip tough ones and come back.
Progress is auto-saved
Your answers are saved locally — a page refresh won't lose your work.
Review your answers
After submitting you'll see every explanation and your NEC references.
10
Questions
15 min
Time
70%
Pass
Timer starts immediately. Progress is auto-saved.
0
Correct0
Wrong0s
TimeElectrical fuse Practice test — Question List
Question 2: In an electrical circuit the fuse is used to ...................
- detect the fault only
- protect the circuit from fault
- minimize the fault only
- detect and protect the circuit
Question 3: The breaking capacity of an electrical fuse compared to circuit breaker is ...............
- less
- more
- same
Question 4: The operating time of an electrical fuse is about ...................
- 0.002 sec
- 1 sec
- 0.8 sec
- 1.5 sec
Question 5: Which of the following is the time current graph of an electrical fuse?
- linear characteristic
- inverse characteristic
- straight line
- parabola
Question 6: An electrical fuse should have high melting point.
- True
- False
Question 7: Which of the following fuse diameter will be high , 10 A fuse or 5 A fuse?
- 10 A
- 5 A
- both are same
Question 8: Which following device only detects the fault in an electrical circuit?
- fuse
- circuit breaker
- isolator
- relay
Question 9: If the current rating of a fuse is 10 A the fusing current will be ..............
- 10 A
- more than 10 A
- less than 10 A
- 5 A
Question 10: If the maximum over current in a circuit should be 5 A. what should be the fuse rating?
- 5A
- less than 5 A
- more than 5A
- 2.5 A
Student Reviews
No reviews yet — be the first to share your experience!
Leave a Review