Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 26, Problem 2TF
True or False? A spark plug with two ground electrodes will provide two separate sparks when fired.
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List the procedures used when setting up, igniting, andusing an air-acetylene unit.
Why the maximum discharge rate should not be exceeded?
a. Acetylene becomes unstable and could explode when compressed to high pressure
b. It may create a reaction between the flame produce and the amount gas being discharged.
c. It causes overheating on the welding
tip that will damage the work.
d. The working pressure will not stabilize and eventually produce a irregular flame.
Which of the following gases are most frequently used as shielding to provide an inert atmosphere in the
vicinity of the weld?
a. argon, helium, and carbon dioxide
b. sulphur dioxide, argon, and oxygen
C. argon and helium
O d. argon and carbon dioxide
e. argon and carbon dioxide
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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- What is the function of flame safeguard controls?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_forwardWhat can cause a properly sized electrode holder to overheat?arrow_forward
- What does the nozzle insulator provide to the plasma torch?arrow_forwardWhat is missing below in order to satisfy the conditions necessary in order to cut when using an oxygen-fuel gas mixture? A fuel cylinder, oxygen cylinder, mixer chamber, welding torch and? a. Flame arrestor b. Nozzle tip c. Control valves d. Flame cutter on the other hand, A visual check during electric welding includes? a. Strength of joint b. Cable inspections c. Pressure setting d. Slag inclusion And, Since visual inspection is an examination of the eye, which of these statements describes its limitation? a. It is also known as ductility test. b. It can only detect or locate defects on weld surface. c. It is usually inexpensive and no power needed. d. Information on macro structural can be assessed.arrow_forwardIt prevent knocking because fuel with greater octane number has lower flame speed True Falsearrow_forward
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