The plate material in a discharged lead acid battery is changed to lead _______________:
Electrolyte in a lead acid battery is made up of ____________ and water.
Positive and negative plate groups are assembled with separators and placed into the case with electrolyte to complete individual.
Dry-charged batteries, when manufactured contain:
The capacity of a battery is rated in two ways. They are:
The specific gravity of a fully charged battery at 80oF (27oC) is at least:
During the normal operation of a battery, the electrolyte level may become low. Only____________ may be added to raise the electrolyte level.
The area below the cells and the bottom of the case is designed to:
The structure of a deep cycle battery differs from that of a conventional lead acid battery because it has:
Selection of a suitable battery should be based on:
The amount of current a fully charged battery is capable of producing is dependent on the:
Approximately how much voltage can be obtained from a single cell of a storage battery?
What instrument is used to measure the specific gravity of electrolyte?
When removing battery cables, you should first:
As safety precaution, to neutralize spilled battery electrolyte, a mechanic should keep on hand a quantity of:
When testing the specific gravity of a battery, the allowable variation between cells should not exceed:
Care must be taken while you work near batteries that are charging because a spark could explode the ______________ gas being given off in the charging process.
Overcharging a battery can cause:
If battery electrolyte is accidentally splashed in your eyes you must immediately:
The battery top must be kept clean and dry or the accumulated dirt and moisture will:
When performing a load test on a battery you will calculate the amount of load by:
The lead acid storage battery is currently rated by the "Cold Cranking Amps" and the:
What is the purpose of the three minute charge test?
When performing a three minute charge test, the voltage is greater than 15.5 volts after 3 minutes. What would this indicate?
When performing a three minute charge test, what current rating should the charger be set at?
A battery''s output capacity is unaffected by temperature.
Why should the ground terminal of a battery be disconnected first when removing a battery from a vehicle?
A frozen battery charges in the same time as a battery at room temperature.
A battery incorporating an internal hydrometer or eye that shows clear or yellowish, this would be an indication that the battery should be:
When performing a high discharge load test on a battery, you should load the battery for:
A battery with a specific gravity reading of 1.225 would be about:
When charging batteries what is the temperature that the battery should NOT exceed?
The group number of a battery (eg. 27 or 4D) indicates the:
These batteries are connected in
The batteries above would generate
The batteries shown below are connected in
The cells within an automotive style battery are normally connected in:
Overcharging a battery can cause:
When disconnecting a battery from a charger you should always:
The battery top must be kept clean and dry or the accumulated dirt and moisture will cause:
The battery''s ___________ is the medium through which the positive and negative plates in the battery cells react:
When performing a battery hydrometer test on a piece of equipment:
When discussing a battery capacity test with the battery temperature at 80 degrees Fahrenheit. Technician A says the battery discharge rate is calculated by multiplying two times the battery reserve capacity rating. Technician B says the battery is satisfactory if the voltage remains about 9.6 volts at 80 degrees Fahrenheit. Who is right?
An open circuit voltage test is being performed on a battery with a digital multimeter. Technician A says the voltage should add up to 2.1 volts per cell for a total of 12.6 volts. Technician B says that this test is used in place of a hydrometer for maintenance-free batteries. Who is right?
Technician A says that a dark hydrometer eye on a maintenance-free battery indicates that the battery must be charged before further testing. Technician B says a green dot in the hydrometer eye indicates that the battery is charged and testing may continue. Who is right?
When charging a maintenance-free battery, you observe the built-in hydrometer eye on the top of the battery, is clear or yellowish. This indicates that you should:
A technician checks the records of a unit, finds that the battery top is wet, is using excessive water and frequently needs topping up. What is the most likely cause for this?
A technician finds that a truck''s four batteries have all frozen solid. Outside temperature is -10 degrees Farenheit. Technician A says the problem is that the truck was parked outside at too low a temperature. Technician B says the truck''s batteries were allowed to discharge too deeply. Who is right?
A truck has experienced a rapid failure of one of its four batteries. The failed battery is much newer than the other three. The three remaining batteries are still usable, and pass battery high discharge tests but accept a recharge very slowly.
In the following illustration of a battery ground post and clamp, what would be an acceptable reading when the starter is operating?
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