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Electronics Mechanic Practice Test: Uninterrupted Power Supply
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Electronics Mechanic Practice Test: Uninterrupted Power Supply
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25 Questions

1. In online UPS load connected __________
2. Battery Capacity of UPS is measured in -
3. How batteries are rated?
4. Which IC is used in the battery charging circuit of ON-Line UPS?
5. In order to reduce the size and weight of UPS, the bridge is used with ___________.
6. What is the Nominal Frequency of a UPS?
7. Which is equal to the ratio of the real power to the apparent power?
8. What is the ambient temperature maintained to extend the life of UPS?
9. What is the specific gravity of electrolyte in the lead-acid battery with full charge?
10. The formula for Power Factor is -
11. static UPS requires —
12. Backup duration of UPS depends on ___________.
13. The plate and electrode in earthing are surrounded by which layer to keep the plates soft?
14. What is the efficiency of Online UPS?
15. What is the full form of IC?
16. Value of Load Power Factor of a UPS is -
17. Based on input supply, UPS are of how many types?
18. Maximum time taken by UPS to switch from main power source to the battery is called -
19. Usually ______ batteries are use in UPS system?
20. The main power source of Online UPS is -
21. Which device is used for measuring the resistance of earth?
22. In an Off-line UPS, change over takes place in __________
23. What is the primary function of a charge controller?
24. In online UPS load connected
25. In an on-line UPS, power supply is ___________.