Basic Automotive Electrical Cicuits with complete verified solutions 2024
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Course
Postal Automotive
Institution
Postal Automotive
What are the 5 basic electrical circuits fin automotive electrical systems?
1. Charging circuit
2. Starting
3. Ignition
4. Lighting
5. Accessory
Which circuit supplies all of the electricity for a vehicle whenever the engine is running?
The charging circuit
What are the 4 basic ...
Basic Automotive
Electrical Cicuits with
complete verified
solutions 2024
What are the 5 basic electrical circuits fin
automotive electrical systems? - answer 1.
Charging circuit
2. Starting
3. Ignition
4. Lighting
5. Accessory
Which circuit supplies all of the electricity for a
vehicle whenever the engine is running? - answer
The charging circuit
What are the 4 basic parts of a charging circuit? -
answer 1. Batter
2. Alternator (generator)
3. Alternator Belt
4. Voltage regulator
,What is the usual type of battery used in
automotive equipment? - answer A lead-acid cell-
type battery
How many batter elements are there in most
automotive batteries? - answer 6
What are the active materials which compose the
charged negative and positive plates in each
battery cell compartment? - answer Charged
negative plates contain gray colored porous or
spongy lead (Pb); Charged positive plates contain
chocolate-brown colored lead peroxide PbO2
What color of paint is used to mark a positive
battery terminal? - answer Red
What is the composition of the electrolyte solution
used in a fully charged battery? - answer 60%
water and 40% sulfuric acid
What is the normal specific gravity of the
electrolyte used in a fully charged lead-acid
storage batter? - answer 1.28 (at 80F)
, What is the unit of measurement for the capacity
of a battery? - answer Ampere-hour
What is the cold-cranking rating of a car battery? -
answer It shows how much current (in amperes)
the battery can deliver for 30 seconds at 0 degrees
F while a terminal voltage for 7.2 volts is
maintained
What are the 2 principal methods used for
charging a battery? - answer The constant current
method and the constant voltage method
What is the usual charging rate using the constant
current charging method? - answer 1 ampere per
positive cell
When mixing electrolyte, should the water be
poured into the acid, or acid into water? - answer
The acid is ALWAYS poured into the water slowly
and gently: Pouring water into sulfuric acid can
cause an explosion or splattering
What type of water should be used to fill battery
cells when the electrolyte level is low? - answer
Distilled water only
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