1) Which primary cell have the lowest voltage?
Correct Answer: Mercury
2) Which is used in electrolytes, to prevent local action in battery?
Correct Answer: Distilled water
3) Which is the example of battery backup?
Correct Answer: UPS
4) What is the backup duration for 600 VA UPS?
Correct Answer: 15 to 20 minutes
5) What is battery backup?
Correct Answer: to provide continuous power