Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 19, Problem 9ASRQ
To determine
Whether Technician A or Technician B is correct.
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Which of the following statements about battery rating 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 80o F (26.7o 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 0o F(-17.7o C) for 30 seconds
while maintaining a voltage above 9.6 volts for a 12 volt battery.
c.The craking amp rating expresses that number of amperes a battery'
can deliver at 32o F (0o C) for 30 seconds and maintain at least 1.2 volts
percell.
d.The reserve capacity ratng expresses the number of amperes a fully charged battery at 80o F can supply before the battery's voltage
falls below 10.5 volts.
true or False? The computer in most late-model vehicles must undergo a relearn or initialization procedure after the vehicle's battery has been disconnected and reconnected?
True or False? The BCI determines battery ratings for CCA, CA, and reserve capacity.
Chapter 19 Solutions
Automotive Technology
Ch. 19 - To protect electronic circuits, some voltage...Ch. 19 - What is the purpose of the diodes in the...Ch. 19 - How does a voltage regulator regulate the voltage...Ch. 19 - Describe the differences between an overrunning...Ch. 19 - What would happen to the output of an AC generator...Ch. 19 - Describe the basic difference between a DC motor...Ch. 19 - True or False? A faulty voltage regulator can only...Ch. 19 - True or False? A generator that is not producing...Ch. 19 - Prob. 1MCCh. 19 - What part of the AC generator is the rotating...
Ch. 19 - Which type of stator winding has two windings in...Ch. 19 - Slip rings and brushes. mount on the rotor shaft...Ch. 19 - The alternating current produced by the AC...Ch. 19 - Prob. 6MCCh. 19 - Prob. 7MCCh. 19 - Technician A says that the waveform produced by an...Ch. 19 - While discussing what is indicated by a vehicles...Ch. 19 - When checking the charging system on a late-model...Ch. 19 - Prob. 4ASRQCh. 19 - Technician A says generator output should be...Ch. 19 - Technician A says that many newer charging systems...Ch. 19 - While diagnosing rapid and severe belt wear after...Ch. 19 - Prob. 8ASRQCh. 19 - Prob. 9ASRQCh. 19 - Prob. 10ASRQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Technician A says that the reserve rating of a battery is the amount of steady current that a fully charged battery can supply tor 20 hours without the voltage falling below 10.5 volts. Technician B says that ampere-hour ratings state how many hours the battery is capable of supplying 25 amperes. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTechnician A says that before a battery is removed, a memory' saver ought to be installed. Technician B says that before a battery is removed, the positive cable should be disconnected and the area around the battery should be cleaned. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTechnician A says that battery straps should be used whenever a battery is lifted Technician B says that when a battery is removed, the positive cable should be disconnected first. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- Which of the following statements about the high-voltage circuits in a Honda Hybrid is NOT true? a. All of the high-voltage cables are covered in orange sleeves for easy identification. b. You should always follow the disarming of the high-voltage systems before performing any service work on or near the high-voltage circuits. c. There is a main switch on the instrument panel that is used to disconnect the battery module from the rest of the car. d. There are three large capacitors in the MDM that will take at least 5 minutes to discharge after the switch is turned off.arrow_forwardTechnician A says that a 12-volt light bulb that draws 12 amps has a power output of 1 watt. Technician B says that a motor that has 1 ohm of resistance has a power rating of 144 watts if it is connected to a 12-volt battery. Who is correct? Expert Answerarrow_forwardTrue or False? A fully charged new battery willhave a low conductance reading.arrow_forward
- Technician A fast charges a sulfated battery then reinstalls it in the vehicle. Technician B trickle charges a sulfated battery over 24 hours before reinstalling it. Who is correct? a. A only b. B only c. both A and B d. neither A nor Barrow_forwardWhen discussing the reasons why a change from 12 V to 42 V batteries is likely in the future, Technician A says this will produce an increase in power for an increased range of accessories. Technician B says this will provide an increase in power but also an increase in maintenance. Who is right? 1. A only. 2. B only. 3. Both A and B. 4. Neither A nor B.arrow_forwardWhile discussing IAC motor removal, service, and replacement: Technician A says that throttle body cleaner may be used to clean the IAC motor internal components. Technician B says that on some vehicles, IAC motor damage occurs if the pintle is extended more than specified during installation. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
- Which of the following statements about batterytypes is not true?a. Deep cycle batteries are designed to gothrough many charge and discharge cycles.b. A low-maintenance battery is a heavy-dutyversion of a normal lead-acid battery.c. Maintenance-free batteries require externalholes or vent caps.d. In a gel cell battery, gassing is minimized andvents are not needed.arrow_forwardWhen working on a high-voltage system, it is best to keep anyone who is not part of the service away from you and the car by creating a buffer zone around the car. Technician A makes sure the outside edges of the zone are at least one foot away from the car. Technician B places orange cones to define the outer boundaries of the zone. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardTechnician A says that all FCEVs have regenerative braking. Technician B says that all FCEVs have an auxiliary 12-volt battery. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
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