Electrical Engineering : Electrolysis And Storage Of Batteries QUESTIONS AND ANSWERS :: part4 : 16 to 20
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
16.Which of the following cell has a. reversible chemical reaction ? |
| Lead-acid |
| Mercury oxide |
| Carbon-zinc |
| Silver-oxide |
17.Dry cell is modification of |
| Deniell cell |
| Leclanche cell |
| Lead-acid cell |
| Edison cell |
18.While preparing electrolyte for a lead-acid battery |
| water is poured into acid |
| acid is poured into water |
| anyone of the two can be added to other chemical |
| acid is poured into water |
19.Mercury cell has which of the following characteristics ? |
| Flat discharge current-voltage curve |
| High power to weight ratio |
| Comparatively longer shelf life under adverse conditions of high temperature and humidity |
| All of the above |
20.In alkaline cell the electrolyte is |
| dilute sulphuric acid |
| concentrated sulphuric acid |
| NaOH |
| KOH |
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