Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 18, Problem 6ASRQ
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The technician with correct approach.
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A starter cranks, but cranks slowly. The shop performs a voltage drop on the ground and power side of the starter circuit and they both test good. Technician A says the battery may be bad. Technician B says the starter may be bad. Who is correct?
Technician 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?
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Technician A says that many newer charging systems do not have a separate voltage regulator. Technician B says that most late-model charging systems are computer regulated through the ground of the field. Who is correct?
Chapter 18 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 18 - True or False? The strength of the magnetic field...Ch. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - True or False? Many armature bearings are held in...Ch. 18 - Which of the following is not part of the starter...Ch. 18 - Which of the following tests would not be...Ch. 18 - When the starter spins but does not crank the...Ch. 18 - If the solenoid clicks while trying to crank the...Ch. 18 - Prob. 9RQCh. 18 - Prob. 10RQ
Ch. 18 - Prob. 11RQCh. 18 - The device that prevents the engine from turning...Ch. 18 - The part of the armature that the brushes ride on...Ch. 18 - Describe how to perform a starter bench test.Ch. 18 - A control circuit voltage drop test shows a 1.1...Ch. 18 - An engine cranks slowly: Technician A says that a...Ch. 18 - While discussing armature testing: Technician A...Ch. 18 - Pinion gear-to-flywheel ring gear clearance is...Ch. 18 - Technician A says that a starter no-load test is...Ch. 18 - Technician A checks a starters field coils for...Ch. 18 - Prob. 6ASRQCh. 18 - When diagnosing a no-crank no-start condition, no...Ch. 18 - While discussing a no-crank condition: Technician...Ch. 18 - Prob. 9ASRQCh. 18 - While discussing electric motors: Technician A...
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- Technician A says that a starter no-load test is conducted with the starter in a bench vise. Technician B says that the no-load test is used to determine starter motor circuit voltage drop. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhen diagnosing a no-crank no-start condition, no voltage is present at the S terminal of the solenoid while attempting to crank the engine. Technician A says a faulty starter motor is the cause. Technician B says a shorted safety switch is the cause. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardIf the solenoid clicks while trying to crank the engine with the starter, which of the following is not a probable cause? A faulty neutral safety switch Low battery voltage Low voltage available to the solenoid An open in the hold-in windingarrow_forward
- While discussing a no-crank condition: Technician A says to verify the condition of the batten' before testing the starter motor Technician B says a scan tool may be used to check starter control circuit operation. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTechnician A checks a starters field coils for opens by connecting an ohmmeter between the coils' power feed wire and the field coil brush lead. Technician B checks a starters field coil for a short to ground by connecting an ohmmeter across the field coil brush lead and the starter housing. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhich of the following is not part of the starter motor circuit? Battery Starting safety switch Starter motor Relay solenoidarrow_forward
- While 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_forwardWhile discussing AWD systems: Technician A says that some systems are electronically controlled and use an electromagnetic clutch to engage and disengage the drive axles. Technician B says that some cars do not use a transfer case, but they are equipped with a third differential unit. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhile discussing electric motors: Technician A says that when there is high CEMF, there will be high current flow. Technician B says that if the reluctance of an electromagnet increases, its field strength increases. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- In El systems using one ignition coil for every two cylinders: Technician A says that two plugs fire at the same time with the same voltage used by each spark plug. Technician B says that one plug fires in the normal direction (center to side electrode) and the other in reversed polarity (side to center). Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardCranking current is excessive but is normal when the starter is bench tested: Technician A says the problem could be with the positive battery connection to the solenoid. Technician B says there could be an engine mechanical problem. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardWhile discussing electrical grounds: Technician A says that a component may be grounded through its mounting to a major metal part. Technician B says that some components must be grounded by connecting its positive terminal to a metal section of the frame. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
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