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Electrician
Electrician Set-1
Batteries
91

Batteries MCQ - Electrician (Set-1) with Answers

91) A spark must not be produced when a fully charged battery is either being disconnected from a bench charger or being fitted to a vehicle because :

gas leaving the cells is highly explosive

gas produced by a sudden battery discharge is corrosive

spark and gas react to form dangerous fumes

spark can cause the battery polarity to reverse

Answer is:

gas leaving the cells is highly explosive

Batteries MCQ - Electrician (Set-1) with Answers

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Related Batteries MCQ - Electrician (Set-1) with Answers

92) The number of positive plates in a battery cell is :

one more than the negative plates

one less than the negative plates

two less than the negative plates

two more than the negative plates

Answer is:

one less than the negative plates

93) If the electrolyte level is low in a lead-acid battery, the battery should be topped up with :

diluted acid

clean distilled water

sulphuric acid and having a relative density of 1.280

an electrolyte similar to that used in the battery

Answer is:

clean distilled water

94) The ability of a battery to supply a current similar to that required by the starter motor is tested by :

a wide scaled hydrometer

a high rate discharge tester

a voltmeter scaled 0.200 V

an ammeter scaled 0.100 A

Answer is:

a high rate discharge tester

95) The need to top up a battery at frequent intervals indicates that the :

battery is being overcharged

charging rate is too low

electrical system is shorting to earth

battery separators are not sealing the cell

Answer is:

battery is being overcharged

Batteries MCQ - Electrician (Set-1) with Answers

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