Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 26, Problem 5ASRQ
To determine
Whether Technician A or Technician B is correct.
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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?
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?
Title
True or False? A spark plug with two ground electrodes will provide two separate sparks when fired..
Description
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
Chapter 26 Solutions
Automotive Technology
Ch. 26 - Explain how voltage is induced in a permanent...Ch. 26 - Explain why dwell time is important to ignition...Ch. 26 - Prob. 3SACh. 26 - Explain how the plugs fire in a two-plug-per-coil...Ch. 26 - Why is high voltage needed to establish a spark...Ch. 26 - Prob. 6SACh. 26 - Modern ignition cables contain fiber cores that...Ch. 26 - Explain the components and operation of a...Ch. 26 - True or False? The spark plug wire is eliminated...Ch. 26 - True or False? A spark plug with two ground...
Ch. 26 - Prob. 1MCCh. 26 - Which of the following is a function of all...Ch. 26 - Reach, heat range, and air gap are all...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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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
- While discussing ignition systems: Technician A says that an ignition system must supply high-voltage surges to the spark plugs. Technician B says that the system must maintain the spark long enough to burn all of the air-fuel mixture in the cylinder. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardDraw P-V and T-s diagram showing the 4 points of different cycle for (a) spark ignition with explanation (b) compression ignition (c) dual combustion Explain the process from point to pointarrow_forwardWhat does a slope in the spark line represent?arrow_forward
- What does a slope in the spark line represent? a. Low secondary resistance b. High resistance in the primary circuit c. An incorrect air-fuel mixture d. High resistance in both the primary and secondary circuitarrow_forwardExplain the influence of engine speed upon the ignition delay.arrow_forwardHow spark advance mechanisms works in mechanical ignition system and what are its shortcomings?arrow_forward
- Explain with a neat sketch of Electronic Ignition System.arrow_forwardDescribe the engine types and operations including the manner of releasing the energy source through combustion of the corresponding fuels.arrow_forwardIn 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_forward
- Derive the requirment of an Ignition System.arrow_forwardWhat is meant by abnormal combustionarrow_forwardDescribe with the aid of diagrams the operational sequence of four stroke spark ignition and four stroke compression ignition engines note:Use whatever laws or graphics you need to illustrate the answerarrow_forward
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