Electrolysis and storage of batteries questions with answers
98 multiple-choice questions. Open any question for its answer and explanation.
- In a lead-acid cell, if the specific gravity of sulphuric acid is 1.8, it will require following ratio of acid to water to get mixture of specific gravity of 1.3
- The specific gravity of electrolyte is measured by
- Which of the following is incorrect?
- Battery charging equipment is generally installed
- The ampere-hour efficiency of a leadacid cell is normally between
- A battery of 6 cells will show a drop of _____ volts from fully charged state to fully discharged state.
- Level of electrolyte in a cell should be _____ the level of plates
- Under normal charging rate, the charging current should be
- When two batteries are connected in parallel, it should be ensured that
- As compared to constant-current system, the constant-voltage system of charging a lead acid cell has the advantage of
- The storage battery generally used in electric power station is
- Ampere hour capacity of an industrial battery is based on ____ hours discharge rate.
- Dry cell is modification of
- Charging a sulphated battery at high rate results in
- The active materials on the positive and negative plates of a fully charged lead-acid battery are
- The e.m.f. of an Edison cell, when fully charged, is nearly
- In a lead-acid cell dilute sulfuric acid (electrolyte) approximately comprises the following
- In alkaline cell the electrolyte is
- The substances which combine together to store electrical energy during the charge are called ______ materials
- Five 2 V cells are connected in parallel. The output voltage is
- Which of the following factors adversely affects the capacity of the leadacid battery ?
- During the idle period of the battery, strong electrolyte tends to change the active material of the cell into
- It is noticed that durum charging
- Following will occur if level of electrolyte falls below plates
- Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as______materials.