ELECTROLYSIS AND STORAGE BATTERIES QUIZ

In a lead-acid cell dilute sulfuric acid (electrolyte) approximately comprises the following

two parts H2O, two parts H₂SO₄

all H₂SO₄

one part H2O, three parts H₂SO₄

three parts H2O, one part H₂SO₄

TRUE ANSWER : ?
YOUR ANSWER : ?

When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in

charged state

none of the listed here

discharged state

active state

TRUE ANSWER : ?
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When the load resistance equals the generator resistance which of the following will be maximum ?

Current

Voltage across the load resistance

Efficiency of the circuit

Power in the load resistance

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Trickle charging of a storage battery helps to

increase its reserve capacity

prevent sulphation

maintain proper electrolyte level

keep it fresh and fully charged

TRUE ANSWER : ?
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Following will occur if level of electrolyte falls below plates

capacity of the cell is reduced

all of these

open plates are converted to lead sulphate

life of the cell is reduced

TRUE ANSWER : ?
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Chargmg of sulphated battery produces ____ heat.

very little

more

no

less

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Which of the following primary cells has the lowest voltage ?

Lithium

Mercury

Zinc-chloride

Carbon-zinc

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Each cell has a vent cap

to allow gases out when the cell is on charge

to check the level of electrolyte

to add water to the cell if needed

all of the listed here

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When two batteries are connected in parallel, it should be ensured that

they have same e.m.f.

they have same make

they have identical internal resistance

they have same ampere-hour capacity

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Extent of corrosion in the underground metal work depends upon

all of these

amount of moisture

type of soil chemicals

type of metals

TRUE ANSWER : ?
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