Batteries Flashcards
Battery negative plates and positive plates with separators between them are called:
a) a battery
b) a cell pack
c) a cell element
d) a plate group
c) a cell element
What does a battery do?
a) supplies power to operate the starter motor
b) stabilizes the vehicle electrical system by absorbing voltage surges
c) supplies power to accessories when the charging system is unable to supply all the needed power
d) all of the above
d) all of the above
The electrolyte in a lead-acid battery is made up of water and:
a) sulphuric acid
b) nitric acid
c) nitrous acid
d) hydrochloric acid
a) sulphuric acid
The acronym VRLA stands for:
a) Voltage Regulated Loss Adjusted
b) Voltage Regulated Lead Acid
c) Valve Regulated Loss Adjusted
d) Valve Regulated Lead Acid
d) Valve Regulated Lead Acid
When a lead acid battery is discharged:
a) all plates have changed to dissimilar metals
b) most plates have changed to dissimilar metals
c) the electrolyte contains more sulphuric acid than water
d) the electrolyte contains more water than sulphuric acid
d) the electrolyte contains more water than sulphuric acid
Acid spills can be neutralized with:
a) a mixture of water and alcohol
b) a mixture of alcohol and Varsol
c) a mixture of baking soda and water
d) a mixture of salt and water
c) a mixture of baking soda and water
When removing the battery from a vehicle for servicing, always remove the:
a) negative cable first and install it last
b) positive cable first and install it last
c) negative cable first and install the positive cable last
d) positive cable first and install the negative cable last.
a) negative cable first and install it last
Before you perform a battery load test, the battery must be at least:
a) 40% charged
b) 55% charged
c) 75% charged
d) 80% charged
c) 75% charged
An open circuit voltage test is performed on a lead acid battery to determine:
a) if parasitic drain exceeds the maximum allowable
b) if the battery can supply sufficient starting voltage
c) how many cells are active in the battery
d) the state of charge of the battery
d) the state of charge of the battery
If a battery load test is performed at room temperature, the final voltage should be:
a) more than 12.4 V
b) more than 10.6 V
c) more than 9.6 V
d) less than 7.2 V
c) more than 9.6 V
When servicing a battery with tapered terminals, three necessary tools are:
a) battery pliers, a terminal puller and a terminal spreader
b) battery pliers, a socket set and insulating gloves
c) a terminal puller, a terminal press and a socket set
d) tapered terminal pliers, an adjustable wrench and a blade screw driver
a) battery pliers, a terminal puller and a terminal spreader
A fully charged battery is best stored:
a) in a hot and dry location
b) in a warm and damp location
c) on a concrete floor
d) in a dry, cool location
d) in a cool, dry place
The rate of self-discharge of any battery will increase if:
a) battery temperature is increased
b) battery temperature is decreased
c) the battery is stored in a dry location
d) the battery is serviced with baking soda and water
a) battery temperature is increased
If the battery in a stored vehicle goes dead over a period of three days, then:
a) the battery is sulphated and must be replaced
b) the charging system is not charging enough
c) there might be a parasitic drain in the vehicle
d) the battery terminals might be corroded
c) there might be a parasitic drain in the vehicle
A battery will supply the most power when it is:
a) very cold
b) at room temperature
c) 50% charged
d) being charged
b) at room temperature
