Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 20, Problem 3TF
True or False? All turn signal flasher units contain a temperature-sensitive bimetallic strip and a heating element.
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Di ignition systems are capable of producing higher electrical energy than the DIS ignition systems. true or false
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True or False? A spark plug with two ground electrodes will provide two separate sparks when fired..
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True or False? A spark plug with two ground electrodes will provide two separate sparks when fired.
Why is high voltage needed to establish a spark across the gap of a spark plug? List the advantages of having one ignition coil per cylinder.
Which of the following is a function of all ignition systems? a. To generate sufficient voltage to force a spark across the spark plug gap b. To time the arrival of the spark to coincide with the movement of the engine’s pistons c. To vary the spark arrival time based on varying operating conditions d. All of the above
How do most electronic ignition systems differ?
number of spark plugs
the use of CMP and CKP sensors
number of transistors
the use of a distributor
Chapter 20 Solutions
Automotive Technology
Ch. 20 - What lighting systems are controlled by the...Ch. 20 - What is a CHMSL?Ch. 20 - How many wires are normally connected to a double...Ch. 20 - What are the most probable causes for one low-beam...Ch. 20 - Why do some manufacturers protect the headlamp...Ch. 20 - What types of headlights do not have a filament?Ch. 20 - What is the primary tool used to diagnose an auto...Ch. 20 - True or False? HID lamps produce more heat and...Ch. 20 - True or False? The headlights on many adaptive...Ch. 20 - True or False? All turn signal flasher units...
Ch. 20 - Which of the following may cause the turn signal...Ch. 20 - Circuits that can energize the high beams even if...Ch. 20 - Which of the following would probably not cause...Ch. 20 - The stoplight switch is normally mounted on the...Ch. 20 - Which of the following is not a true statement...Ch. 20 - While troubleshooting a headlight problem:...Ch. 20 - Technician A says that the condition of the...Ch. 20 - Composite headlights are being discussed:...Ch. 20 - While troubleshooting a brake light problem;...Ch. 20 - Technician A says that a composite headlight...Ch. 20 - While diagnosing an HID lamp that does not turn...Ch. 20 - Technician A says that flickering vehicle lights...Ch. 20 - The turn signals operate in the left direction...Ch. 20 - The right back-up lamp is dim: Technician A says...Ch. 20 - When the headlights are switched from low beam to...
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- Which of the following is false? The air bag igniter assembly is a spark plug-type device with two pins that current must jump across. The air bag igniter assembly creates a spark that ignites a canister of gas generating zerconic potassium perchlorate. The air bag igniter assembly is housed in the module assembly. None of the above.arrow_forwardTrue or False? A spark plug with two ground electrodes will provide two separate sparks when fired.arrow_forwardWhat causes an overload protection device to function?arrow_forward
- Rear defrosters generally have a relay with a timer. This allows. the defogger to shut down after a predetermined length of time the defogger to function just until the rear window is clear the defogger to be independent of the ignition switch none of the abovearrow_forwardExplain how the plugs fire in a two-plug-per-coil DIS system.arrow_forwardWhat is the principle of operation for most externally mounted overload protection devices?arrow_forward
- What type of chemical is used to cause a pressure change in a bellows type thermostat?arrow_forwardAn overheating vehicle is being discussed. Technician A states that the thermostat is open until the engine fully warms up. Technician B states that the vehicle may be overheating because the thermostat is stuck closed. Who is correct? Select one: a. Technician A only b. Technician B only c. Both Technicians A and B d. Neither Technician A nor Barrow_forwardWhich of the following is not a Gen2 plasma ignition system? Dual frequency drive Capacitive Magnetron discharge Helicon wave discharge Inductively coupled plasma dischargearrow_forward
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