Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 23, Problem 8ASRQ
To determine
The technician with correct approach.
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hile discussing NTC thermistors; Technician A says that some systems use this type of thermistor as a protection device. Technician B says that when there is high current in a circuit, the resistance of the thermistor increases and causes a decrease in current flow. Who is correct?
The circuit breaker at a power seat motor continuously trips: Technician A says that this could be caused by a seat track problem that is causing mechanical resistance. Technician B says that this could be caused by corrosion at the motor, which is causing electrical re-sistance. Who is correct?
Which of the following is an example of digital
transducer ?
O a. LVDT
O b. Encoder
O c. Thermistor
O d. Thermocouple
Chapter 23 Solutions
Automotive Technology
Ch. 23 - Prob. 1SACh. 23 - Describe telematics.Ch. 23 - What could be the problem when the vehicles dome...Ch. 23 - What should be checked if none of the grids in a...Ch. 23 - What component in a wiper system makes it possible...Ch. 23 - Name the two most common problems that occur with...Ch. 23 - True or False? Rain-sensitive wiper systems...Ch. 23 - Prob. 2TFCh. 23 - Prob. 1MCCh. 23 - Rear defrosters generally have a relay with a...
Ch. 23 - Prob. 3MCCh. 23 - The front passenger power window motor goes down...Ch. 23 - Which of the following parts or circuits could...Ch. 23 - When diagnosing a vacuum/mechanical cruise control...Ch. 23 - Prob. 7MCCh. 23 - Prob. 1ASRQCh. 23 - Prob. 2ASRQCh. 23 - Prob. 3ASRQCh. 23 - The reasons for slower than normal wiper operation...Ch. 23 - Prob. 5ASRQCh. 23 - Technician A says that some antitheft systems...Ch. 23 - The circuit breaker at a power seat motor...Ch. 23 - Prob. 8ASRQCh. 23 - 9. Technician A says that navigational systems...Ch. 23 - While diagnosing a cruise control system that does...
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- Technician A says that multiplexing is a way to add wires without increasing the weight of the vehicle. Technician B says that multiplexing uses bus data links. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile checking an A/C compressor clutch coil clamping diode with a DMM, the meter shows infinite resistance when the diode is measured in both directions: Technician A says that the diode is open. Technician B says that all diodes should behave this way until a specified voltage is applied to them. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardWhile measuring the resistance of a wire with an ohmmeter: Technician A says that if low resistance is shown on the meter, the wire is shorted. Technician B says that if no resistance is measured, the wire is shorted. Who is correct? Technician A Technician B Both A and B d. Neither A nor Barrow_forward
- While 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_forwardWhat is the device that consists of two unlike metal strips that are attached and have a different rate of expansion and contraction? A. Thermistor B. Thermocouple C. Diaphragm D. Bimetalarrow_forwardWhile checking an A/C compressor clutch coil spikesuppressing diode with an ohmmeter, the meter shows infinite resistance when the diode is measured in both directions: Technician A says that the diode is open. Technician B says that all diodes should behave this way until a specified voltage is applied to them. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- True or False? A batteny is an electromechanical device.arrow_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_forwardSCRs are members of a family of devices known as thyristors. What is a thyristor?arrow_forward
- While discussing copper wire: Technician A says that if the length of wire is doubled, the resistance between the wire ends is doubled. Technician B says that if the diameter of a wire is doubled, the resistance between the wire ends is doubled. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardBasic electronicsarrow_forwardWhich of the following is the purpose of fail-safe circuits? O Fail-safe circuits are designed to protect electric motors against voltage surge O All of these are true O Fail-safe circuits are designed to provide overload protection for system components O Fail-safe circuits are designed to maintain constant current in electric motor coilsarrow_forward
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