Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 26, Problem 6ASRQ
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 B
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20. Technician A says that an ignition
system must generate sufficient voltage to
force a spark across the spark plug gap.
Technician B says that the ignition system
must time the arrival of the spark to
coincide with the movement of the engine's
pistons and vary it according to the
operating conditions of the engine. Who is
correct?
O a. Technician A
O b. Technician B
c. Both A and B
O d. Neither A nor B
Consider the following statements relevant to the ignition system of SI engine:
1. Too small a dwell angle will lead to the burning of condenser and contact points.
2. Too small a dwell angle will result in misfiring.
3. Too large a dwell angle will result in burning of condenser and contact points.
4. Too large a dwell will result in mistiring.
Which of these statements are correct?
If the spark line is totally flat, is longer than 2 ms, and is less than 500 volts, there is a good chance that __________ .
Chapter 26 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 26 - Explain how voltage is induced in a permanent...Ch. 26 - Explain why dwell time is important to ignition...Ch. 26 - Prob. 3RQCh. 26 - Explain how the plugs fire in a two-plug-per-coil...Ch. 26 - Explain the components and operation of a...Ch. 26 - Prob. 6RQCh. 26 - True or False? A spark plug with two ground...Ch. 26 - Why is high voltage needed to establish a spark...Ch. 26 - Prob. 9RQCh. 26 - Which of the following is a function of all...
Ch. 26 - Reach, heat range, and air gap are all...Ch. 26 - True or False? The spark plug wire is eliminated...Ch. 26 - Modern ignition cables contain fiber cores that...Ch. 26 - The magnetic field surrounding the coil in a...Ch. 26 - Which of the following electronic switching...Ch. 26 - Technician A says that a magneto resistive sensor...Ch. 26 - While discussing ignition systems: Technician A...Ch. 26 - While discussing ignition timing requirements:...Ch. 26 - While discussing secondary voltage: Technician A...Ch. 26 - Prob. 5ASRQCh. 26 - In El systems using one ignition coil for every...Ch. 26 - While discussing EI systems: Technician A says...Ch. 26 - While discussing El systems: Technician A says...Ch. 26 - Technician A says the switching device controls...Ch. 26 - While discussing spark plugs: Technician A says...
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- While discussing ignition timing requirements: Technician A says that more advanced timing is desired when the engine is under a heavy load. Technician B says that more advanced timing is desired when the engine is running at high engine speeds. Who is correct?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_forwardWhile discussing spark plugs: Technician A says that too narrow of a spark plug gap can cause a rough idle and premature wear of the electrodes. Technician B says that a spark plug with the wrong reach can cause preignition. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
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