Mindtap For Erjavec/thompson's Automotive Technology: A Systems Approach, 4 Terms Printed Access Card (mindtap Course List)
7th Edition
ISBN: 9781337794381
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Question
Chapter 27, Problem 1ASRQ
To determine
The technician with correct approach.
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Technician A says that a faulty radiator fan
relay can cause an engine to overheat.
Technician B says that bidirectional control
is NOT used to test an electric cooling fan.
Who is correct?
Select one:
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B
An engine starts and runs briefly after a small quantity of fuel is put into the spark plug hole, but it doesn't not start when fuel is added to the carburetor throat. Tech a says that the problem may be that the exhaust valve is not closing completely due to carbon buildup. Tech b says it may be due to a defective carburetor mounting gasket. Who is correct?
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 circuit
Chapter 27 Solutions
Mindtap For Erjavec/thompson's Automotive Technology: A Systems Approach, 4 Terms Printed Access Card (mindtap Course List)
Ch. 27 - Prob. 1SACh. 27 - Name the three types of trace pattern display...Ch. 27 - Prob. 3SACh. 27 - List at least two methods of checking the...Ch. 27 - Prob. 5SACh. 27 - What is the typical procedure for checking the...Ch. 27 - What does a slope in the spark line represent?Ch. 27 - What happens if one of the ground electrodes of a...Ch. 27 - True or False? The first test when checking a...Ch. 27 - True or False? Coil secondary resistance is...
Ch. 27 - True or False? On some engines, if the gap between...Ch. 27 - Richer air-fuel mixtures. a. decrease the...Ch. 27 - While checking a pickup coil with an ohmmeter, a...Ch. 27 - A CKP sensor can be checked with all of the...Ch. 27 - Which of the following will cause one or more, but...Ch. 27 - Prob. 1ASRQCh. 27 - Prob. 2ASRQCh. 27 - Prob. 3ASRQCh. 27 - Technician A says that EMI can affect sensor...Ch. 27 - While discussing waste spark EI systems:...Ch. 27 - While discussing how to test a Hall-effect...Ch. 27 - While discussing the possible causes for a...Ch. 27 - Prob. 8ASRQCh. 27 - While discussing EI service and diagnosis:...Ch. 27 - While discussing engine misfire diagnosis:...
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- Technician A says throttle pressure is controlled directly by the pressure regulator valve. Technician B says one of the primary purposes of the pressure regulator valve is to fill the torque converter with fluid. Who is correct? a. A only b. B only c. Both A and B d. Neither A nor Barrow_forwardTechnician A says that you may be able to smell antifreeze from a leaking heater core. Technician B says that you may be able to hear a loose belt when the engine is running. Who is correct? Select one: a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardAn engine cranks slowly: Technician A says that a possible cause of the problem is poor starter circuit connections. Technician B says that an engine problem could be the cause. Who is correct?arrow_forward
- While discussing ignition timing control in EI systems: Technician A says that when the engine coolant temperature is low, the timing is retarded until normal operating temperature is reached. Technician B says that the PCM will retard the timing during EGR operation. Who is correct? Technician Ac.Both A and B b. Technician B d. Neither A nor Barrow_forwardTechnician A says that broken engine mounts can cause the fan to hit the shroud. Technician B says that missing or broken air dams can cause an engine to overheat. Who is correct? Select one: a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhile 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_forward
- While discussing secondary voltage: Technician A says that the normal required secondary voltage is higher at idle speed than at wide open throttle conditions. Technician B says that the maximum available secondary voltage must always exceed the normally required secondary voltage. Who is correct?arrow_forwardWhat does a slope in the spark line represent?arrow_forwardA small horsepower Briggs engine's spark plug is firing too late. Tech a says that the spark plug gap may be to small. Tech b says that the spark plug gap may be too big. Who is correct?arrow_forward
- I need the answer as soon as possiblearrow_forwardWhile discussing central port injection systems: Technician A says that CPI systems use one injector and several injector nozzles. Technician B says that CPI systems open each injector sequentially. Who is correct? A.Technician A B.Technician B C.Both A and B D.Neither A nor Barrow_forwardTechnician A checks a starter’s field coils for opensby connecting an ohmmeter between the coils’power feed wire and the field coil brush lead. TechnicianB checks a starter’s field coil for a short toground by connecting an ohmmeter across the fieldcoil brush lead and the starter housing. Who iscorrect?a. Technician Ab. Technician Bc. Both A and Bd. Neither A nor Barrow_forward
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