ITI Electronics mechanic question papers

1.The specific gravity of the electrolyte of a fully discharged cell falls down to ----? 

Ans : 1.15

 2. The process of charging and discharging of a new cell is called ?

Ans: cycling

3. The terminal voltage of a fully charged lead-acid cell is? 

Ans: 2.2 V 

4. In order to increase the Ah capacity of a lead-acid battery?

 Ans: more number of plates are to be used .

5. The state of charge / discharge of a lead-acid battery can be known by measuring?

Ans: the specific gravity of the electrolyte.

6. The instrument used for measuring the S.G of electrolyte of a lead-acid battery is called?

Ans: hydrometer.

7. The level of electrolyte iIn lead-acid cells should bem

Ans: 10 to 15 mm above the top of the plates. 

8. The specific gravity of a fully charged lead-acid cell should be ? 

Ans: 1.28