Electrolysis and storage of batteries

[amp_mcq option1=”copper” option2=”lead” option3=”iron” option4=”silver oxide” correct=”option2″]

Detailed SolutionNegative plate of an Edison cell is made of

[amp_mcq option1=”decreases” option2=”increases” option3=”remains constant” option4=”none of the above” correct=”option3″]

Detailed SolutionIn constant-current charging method, the supply voltage from discharged to fully charged condition

[amp_mcq option1=”temperature” option2=”rate of charge” option3=”rate of discharge” option4=”quantity of active material” correct=”option4″]

Detailed SolutionThe capacity of a lead-acid cell does not depend on its

[amp_mcq option1=”goggles or other face shield” option2=”rubber” option3=”rubber boots and gloves” option4=”all above safety devices” correct=”option4″]

Detailed SolutionPersons preparing electrolyte should wear

[amp_mcq option1=”40%” option2=”60%” option3=”70%” option4=”80%” correct=”option2″]

Detailed SolutionOn the average the ampere-hour efficiency of an Edison cell is about

[amp_mcq option1=”Less than” option2=”More than” option3=”Equal to” option4=”None of the above” correct=”option1″]

Detailed SolutionThe internal resistance of a lead-acid cell is that of Edison cell

[amp_mcq option1=”Loss of capacity” option2=”Loss of life” option3=”Corrosion of the grids of the plate” option4=”All above” correct=”option4″]

Detailed SolutionFollowing will happen if the specific gravity of electrolyte becomes more than 1.23.

[amp_mcq option1=”Reduces specific gravity of the electrolyte” option2=”Increases specific gravity of the electrolyte” option3=”Produces excessive gassing” option4=”Increases the temperature” correct=”option1″]

Detailed SolutionUndercharging

[amp_mcq option1=”the loss of capacity of the cell” option2=”the decrease of the specific gravity” option3=”the low voltage of the cell on discharge” option4=”all above conditions” correct=”option4″]

Detailed SolutionSulphated cells are indicated by

[amp_mcq option1=”two” option2=”three” option3=”four” option4=”five” correct=”option1″]

Detailed SolutionThe internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell.