Quiz 4 Ch 15 and 16

A fully charged 12 volt battery should indicate ________.

12.6 volts or higher and A specific gravity of 1.265 or higher

2 12v batteries connected in parallel will give you ______V

12V

When performing a battery load test, how many seconds should the load be applied?

15

Each automotive battery cell has an electrical potential of how many volts?

2.1V

Reserve capacity is the number of minutes a battery can produce 10.5 volts with how many amps?

25

According to the text, hybrid vehicle high voltage batteries can have voltages as high as ________.

300V

A battery measures 12.4 volts after removing the surface charge. This battery is charged at what percent?

75%

During the load testing, battery voltage should not drop below ________ volts.

9.6V

A battery high rate discharge (load capacity) test is being performed on a 12 volt battery. Technician A says that a good battery should have a voltage reading of higher than 9.6 volts while under load at the end of the 15-second test. Technician B says that the battery should be discharged (loaded) to twice its CCA rating. Who is right?

A only

Technician A says that battery load test loads the battery to one-half of its CCA rating. Technician B says that a good battery should be able to maintain higher than 9.6 volts for a 25 second test period. Who is right?

A only

Technician A says that distilled or clean drinking water should be added to a battery when the electrolyte level is low. Technician B says that fresh electrolyte (solution of acid and water) should be added. Which technician is correct?

A only

Vehicles equipped with a diesel engine use two batteries that are connected in parallel to provide additional current at the same voltage. Technician A says to successfully test the batteries, they should be disconnected and tested separately. Technician B says that a fault in one battery has NO effect on the other battery. Who is right?

A only

Technician A says that maintenance-free batteries use a large amount of water. Technician B says that maintenance-free batteries use materials that reduce the amount of water used by the battery. Which technician is correct?

B only

Many vehicle manufacturers recommend that a special electrical connector be installed between the battery and the battery cable when testing for ________.

Battery drain (parasitic drain)

Technician A says that all battery connections should be inspected for corrosion. Technician B says that battery cables should be checked for corrosion and replaced as needed. Who is right?

Both

What battery rating is tested at 32°F (0°C)?

CA cranking amps

Which battery rating is tested at 0°F (-18°C)?

CCA cold cranking amps

When load testing a battery, which battery rating is usually used to determine how much load to apply to the battery

CCA usualy 1/2 CCA

Which chemical is used to strengthen lead grids in maintenance-free batteries?

Calcium

Which of these is a measure of how well a battery can create current?

Conductance

A type of electronic battery tester that does NOT place a load on the battery is called a(n) ________.

Conductance tester

Caution is advised when working around lead-acid batteries because the battery may contain ________ gas.

Hydrogen

What gases are released from a battery when it is being charged?

Hydrogen and Oxygen

The positive battery plate is ________.

Lead dioxide, Brown in color and Sometimes called lead peroxide

Sponge lead is used for which battery components?

Negative plates

Technician A says that dynamic voltage is the voltage (usually of a battery) that exists without a load being applied. Technician B says that open circuit voltage (OCV) is the voltage of the power source (battery) with the circuit in operation. Who is right?

Neither technician

Which battery rating is expressed in minutes?

Reserve capacity

A charge indicator (eye) operates by showing green or red when the battery is charged and dark if the battery is discharged. This charge indicator detects ________.

Specific gravity

Battery electrolyte is a mixture of water and which of these?

Sulfuric acid

What is the most common location for a hybrid vehicle high voltage battery pack?

Under or behind the rear seat

Technician A says that electronic conductance testing can determine CCA, state-of-charge, and voltage of the battery. Technician B says that electronic conductance testing determines if there is a bad cell and the battery is not serviceable and should be replaced. Who is right?

both

Technician A says that an AGM battery can be charged with any battery charger. Technician B says that an AGM battery requires a charger specially designed for charging AGM batteries. Who is correct?

Technician B only

What makes a battery "low maintenance" or "maintenance free"?

The alloy used to construct the grids

Deep cycling means ________.

The battery is fully discharged and then recharged

An AGM battery differs from a conventional flooded battery in what way?

The electrolyte is absorbed into glass separator and will not spill

Which statement is true regarding the internal grids in automotive batteries?

The grid is made mainly of lead and The lead used to make the grid is enhanced with other elements for durability

When jump starting, ________.

The last connection should be the engine block of dead vehicle