TAP Services(865) 919-6674

TAP Services

26305-11 Overcurrent Protection

1. UL Class R fuses have a short circuit interrupting rating of up to ________.

Question 1 of 15

2. Overcurrent protection is covered in ________.

Question 2 of 15

3. Types of fault current include overloads, short circuits, ground faults, and ________.

Question 3 of 15

4. If a continuous load on a branch circuit is measured at 40A, the overcurrent protection should be sized at ________.

Question 4 of 15

5. If a 120V feeder for nonmotor loads feeds a continuous load rated at 20A and a noncontinuous load at 30A, what size overcurrent protective device should be selected?

Question 5 of 15

6. Which type of fuse should be used to prevent nuisance tripping from temporary motor overloads and surge currents?

Question 6 of 15

7. Which of the following are designed to withstand numerous trip and reset cycles without replacement and can be thermal, magnetic, or solid-state?

Question 7 of 15

8. Which of the following is commonly referred to as motor branch circuit protection?

Question 8 of 15

9. Which of the following is within the basic scope of Underwriters Laboratories?

Question 9 of 15

10. When selecting ampere ratings of fuses and circuit breakers, the most important consideration is the ________.

Question 10 of 15

11. The branch circuit conductor and overcurrent protective device must be sized for the actual noncontinuous load plus what percentage of the continuous load?

Question 11 of 15

12. Where are overcurrent protective devices normally installed in a branch circuit?

Question 12 of 15

13. What is the maximum number of circuit breakers or sets of fuses that may be used as the service disconnecting means in a main service panel without a main switch?

Question 13 of 15

14. Which of the following is true of the voltage rating of a fuse?

Question 14 of 15

15. Circuit breakers are classified by ________.

Question 15 of 15


 

Our Clients
Mailing List

Sign up for our mailing list today!

FOLLOW US ON SOCIAL MEDIA
 
 
 
 
3d person on book
Quick Nav
TAP Services
(865) 919-6674 phone Contact Us

This site is proudly hosted and designed by Globotech Solutions. All content Copyright © 2025, TAP Services.