Which of the following primary cells has the highest voltage ? Lithium Carbon-zinc Mercury Manganese-alkaline TRUE ANSWER : ? YOUR ANSWER : ?
Lead-acid cell has a life of nearly charges and discharges 1000 1250 500 700 TRUE ANSWER : ? YOUR ANSWER : ?
In constant-current charging method, the supply voltage from discharged to fully charged condition remains constant increases none of the listed here decreases TRUE ANSWER : ? YOUR ANSWER : ?
Persons preparing electrolyte should wear rubber boots and gloves rubber all of these goggles or other face shield TRUE ANSWER : ? YOUR ANSWER : ?
For a cell to work, which of the following condition(s) become necessary ? Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other Electrolyte liquid or paste should be conducting All of the listed here Electrolyte must chemically react with one of the electrodes TRUE ANSWER : ? YOUR ANSWER : ?
When two batteries are connected in parallel, it should be ensured that they have same ampere-hour capacity they have same e.m.f. they have identical internal resistance they have same make TRUE ANSWER : ? YOUR ANSWER : ?
The charge required to liberate one gram equivalent of any substance is known as ______ constant Boltzman None of the listed here Faraday’s Time TRUE ANSWER : ? YOUR ANSWER : ?
When the lead-acid cell is fully charged, the electrolyte assumes _____ appearance milky dull bright reddish TRUE ANSWER : ? YOUR ANSWER : ?
The ampere-hour efficiency of a leadacid cell is normally between 80 to 85% 20 to 35% 70 to 75% 90 to 95% TRUE ANSWER : ? YOUR ANSWER : ?
Cells are connected in parallel to Increase the internal resistance Increase the efficiency Increase the current capacity Increase the voltage output TRUE ANSWER : ? YOUR ANSWER : ?