automotive electrical I Chapter 5 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
While performing the battery leakage test the voltmeter reads 120 mv. Technician A says this
below specifications and is acceptable. Technician B says the battery case may be porous. Who is
correct?
a. Technician B
b. Neither Technician A nor Technician B
c. Technician A
d. Both Technician A and Technician B - CORRECT ANSWER - a. Technician B
When performing a load test, the load applied is equal to:
a. Three times the CCA rating
b. The CCA rating
c. One-half the CCA rating
d. One-half the amp-hour rating - CORRECT ANSWER - c. One-half the CCA rating
At the conclusion of the load test the battery voltage reads 9.3 volts at 80°F. This indicates.
a. The battery may need replacement
b. The test lead connections were not properly attached
c. There is excessive leakage across the top of the battery case
d. A good battery - CORRECT ANSWER - a. The battery may need replacement
Technician A says the battery provides electricity by releasing free electrons. Technician B says
the battery stores energy in chemical form. Who is correct?
a. A only
b. B only
c. Both A and B
,d. Neither A nor B - CORRECT ANSWER - b. B only
Technician A says the largest demand on the battery is when it must supply current to operate the
starter motor. Technician B says the current requirements of a starter motor may be over 100
amps. Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - c. Both A and B
Which of the following statements about NiMH cells is NOT true?
a. When the NiMH cell discharges, hydrogen moves from the anode to the cathode electrode.
b. Nickel-metal hydride batteries have an anode electrode that contains nickel hydroxide.
c. The alkaline electrolyte has no active role in the chemical reaction.
d. The plates are separated by a sheet of fine fibers saturated with an aqueous and alkaline
electrolyte. - CORRECT ANSWER - b. Nickel-metal hydride batteries have an anode
electrode that contains nickel hydroxide.
The current capacity rating of the battery is being discussed. Technician A says the amount of
electrical energy that a battery is capable of producing depends on the size, weight, and active
area of the plates. Technician B says the current capacity rating of the battery depends on the
types of materials used in the construction of the battery. Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - c. Both A and B
The construction of the battery is being discussed. Technician A says the 12-volt battery consists
of positive and negative plates connected in parallel. Technician B says the 12-volt battery
consists of six cells wired in series. Who is correct?
a. A only
, b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - b. B only
Which of the following statements about battery ratings is true?
a. The ampere-hour rating is defined as the amount of steady current that a fully charged battery
can supply for 1 hour at 80°F (26.7°C) without the cell voltage falling below a predetermined
voltage.
b. The cold cranking amps rating represents the number of amps that a fully charged battery can
deliver at 0°F (-17.7°C) for 30 seconds while maintaining a voltage above 9.6 volts for a 12-volt
battery.
c. The cranking amp rating expresses the number of amperes a battery can deliver at 32°F (0°C)
for 30 seconds and maintain at least 1.2 volts per cell.
d. The reserve-capacity rating expresses the number of amperes a fully charged battery at 80°F
can supply before the battery's voltage falls below 10.5 volts. - CORRECT ANSWER - d.
The reserve-capacity rating expresses the number of amperes a fully charged battery at 80°F can
supply before the battery's voltage falls below 10.5 volts.
Battery terminology is being discussed. Technician A says grid growth is a condition where the
grid grows little metallic fingers that extend through the separators and short out the plates.
Technician B says deep cycling is discharging the battery almost completely before recharging it.
Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - c. Both A and B
Battery rating methods are being discussed.
Technician A says the ampere-hour is determined by the load in amperes a battery is able to
deliver for 30 seconds at 0°F (217.7°C) without terminal voltage falling below 7.2 volts for a 12-
volt battery.
ACTUAL Exam Questions and CORRECT
Answers
While performing the battery leakage test the voltmeter reads 120 mv. Technician A says this
below specifications and is acceptable. Technician B says the battery case may be porous. Who is
correct?
a. Technician B
b. Neither Technician A nor Technician B
c. Technician A
d. Both Technician A and Technician B - CORRECT ANSWER - a. Technician B
When performing a load test, the load applied is equal to:
a. Three times the CCA rating
b. The CCA rating
c. One-half the CCA rating
d. One-half the amp-hour rating - CORRECT ANSWER - c. One-half the CCA rating
At the conclusion of the load test the battery voltage reads 9.3 volts at 80°F. This indicates.
a. The battery may need replacement
b. The test lead connections were not properly attached
c. There is excessive leakage across the top of the battery case
d. A good battery - CORRECT ANSWER - a. The battery may need replacement
Technician A says the battery provides electricity by releasing free electrons. Technician B says
the battery stores energy in chemical form. Who is correct?
a. A only
b. B only
c. Both A and B
,d. Neither A nor B - CORRECT ANSWER - b. B only
Technician A says the largest demand on the battery is when it must supply current to operate the
starter motor. Technician B says the current requirements of a starter motor may be over 100
amps. Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - c. Both A and B
Which of the following statements about NiMH cells is NOT true?
a. When the NiMH cell discharges, hydrogen moves from the anode to the cathode electrode.
b. Nickel-metal hydride batteries have an anode electrode that contains nickel hydroxide.
c. The alkaline electrolyte has no active role in the chemical reaction.
d. The plates are separated by a sheet of fine fibers saturated with an aqueous and alkaline
electrolyte. - CORRECT ANSWER - b. Nickel-metal hydride batteries have an anode
electrode that contains nickel hydroxide.
The current capacity rating of the battery is being discussed. Technician A says the amount of
electrical energy that a battery is capable of producing depends on the size, weight, and active
area of the plates. Technician B says the current capacity rating of the battery depends on the
types of materials used in the construction of the battery. Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - c. Both A and B
The construction of the battery is being discussed. Technician A says the 12-volt battery consists
of positive and negative plates connected in parallel. Technician B says the 12-volt battery
consists of six cells wired in series. Who is correct?
a. A only
, b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - b. B only
Which of the following statements about battery ratings is true?
a. The ampere-hour rating is defined as the amount of steady current that a fully charged battery
can supply for 1 hour at 80°F (26.7°C) without the cell voltage falling below a predetermined
voltage.
b. The cold cranking amps rating represents the number of amps that a fully charged battery can
deliver at 0°F (-17.7°C) for 30 seconds while maintaining a voltage above 9.6 volts for a 12-volt
battery.
c. The cranking amp rating expresses the number of amperes a battery can deliver at 32°F (0°C)
for 30 seconds and maintain at least 1.2 volts per cell.
d. The reserve-capacity rating expresses the number of amperes a fully charged battery at 80°F
can supply before the battery's voltage falls below 10.5 volts. - CORRECT ANSWER - d.
The reserve-capacity rating expresses the number of amperes a fully charged battery at 80°F can
supply before the battery's voltage falls below 10.5 volts.
Battery terminology is being discussed. Technician A says grid growth is a condition where the
grid grows little metallic fingers that extend through the separators and short out the plates.
Technician B says deep cycling is discharging the battery almost completely before recharging it.
Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - c. Both A and B
Battery rating methods are being discussed.
Technician A says the ampere-hour is determined by the load in amperes a battery is able to
deliver for 30 seconds at 0°F (217.7°C) without terminal voltage falling below 7.2 volts for a 12-
volt battery.
