ENGINE TUNE UP PRACTICE SET 2026
ACCURATE RESULTS CONFIRMED
◉ What does the use of one ignition coil per cylinder produce? (25)
Answer: Less time for the spark to be produced
◉ What is the benefit of eliminating the spark plug wire in COP
ignition systems? (25) Answer: To reduce the chances of EMI and
RFI
◉ Why are variable pitch resistor spark plug wires used? (25)
Answer: To reduce the impedance of the wire
◉ When does the magnetic field surrounding the coil in a magnetic
pulse generator move? (25) Answer: When the reluctor tooth
approaches the coil, and when the reluctor tooth begins to move
away from the pickup coil pole.
◉ Which of the following electronic switching devices has a reluctor
with wide shutters rather than teeth? (25) Answer: Hall-effect
sensor
◉ A magnetic style crank sensor will give which kind of signal? (25)
Answer: Variable AC signal
,◉ A Hall effect-style crank sensor will give which kind of signal? (25)
Answer: Square wave frequency signal
◉ A misfire monitor uses which sensor to determine misfires? (25)
Answer: Crank sensor
◉ Engine ignition timing is coming controlled by opening of which
circuit? (25) Answer: Ignition primary circuit
◉ A knock sensor is used to detect preignition and detonation in an
engine. What occurs when a signal is received? (25) Answer: The
timing is retarded
◉ T/F All ignition system diagnosis should begin with a visual
inspection (26) Answer: False
◉ T/F Electromagnetic interference (EMI) can be produced by the
vehicle's primary ignition circuit (26) Answer: False
◉ T/F A bad EI coil may cause cylinder misfiring (26) Answer: True
, ◉ T/F The reluctor (or pole piece) of a magnetic pulse generator
should be replaced as a maintenance item when engine spark plugs
are renewed (26) Answer: False
◉ T/F A bad sensor ground may cause the same symptoms as a
faulty sensor (26) Answer: True
◉ T/F Moisture can cause a short to ground but it will not reduce
the amount of voltage available to the spark plugs (26) Answer:
False
◉ T/F If a vacuum gauge shows a low but steady vacuum when the
engine is at idle, the problem is a noncommon type (26) Answer:
False
◉ T/F Detonation can cause damage to the pistons, values, bearings,
and spark plugs (26) Answer: True
◉ T/F An ignition control module may overheat if it is loosely
mounted Answer: True
◉ T/F Hall-effect sensor problems are very different from magnetic
pulse generators (26) Answer: False
ACCURATE RESULTS CONFIRMED
◉ What does the use of one ignition coil per cylinder produce? (25)
Answer: Less time for the spark to be produced
◉ What is the benefit of eliminating the spark plug wire in COP
ignition systems? (25) Answer: To reduce the chances of EMI and
RFI
◉ Why are variable pitch resistor spark plug wires used? (25)
Answer: To reduce the impedance of the wire
◉ When does the magnetic field surrounding the coil in a magnetic
pulse generator move? (25) Answer: When the reluctor tooth
approaches the coil, and when the reluctor tooth begins to move
away from the pickup coil pole.
◉ Which of the following electronic switching devices has a reluctor
with wide shutters rather than teeth? (25) Answer: Hall-effect
sensor
◉ A magnetic style crank sensor will give which kind of signal? (25)
Answer: Variable AC signal
,◉ A Hall effect-style crank sensor will give which kind of signal? (25)
Answer: Square wave frequency signal
◉ A misfire monitor uses which sensor to determine misfires? (25)
Answer: Crank sensor
◉ Engine ignition timing is coming controlled by opening of which
circuit? (25) Answer: Ignition primary circuit
◉ A knock sensor is used to detect preignition and detonation in an
engine. What occurs when a signal is received? (25) Answer: The
timing is retarded
◉ T/F All ignition system diagnosis should begin with a visual
inspection (26) Answer: False
◉ T/F Electromagnetic interference (EMI) can be produced by the
vehicle's primary ignition circuit (26) Answer: False
◉ T/F A bad EI coil may cause cylinder misfiring (26) Answer: True
, ◉ T/F The reluctor (or pole piece) of a magnetic pulse generator
should be replaced as a maintenance item when engine spark plugs
are renewed (26) Answer: False
◉ T/F A bad sensor ground may cause the same symptoms as a
faulty sensor (26) Answer: True
◉ T/F Moisture can cause a short to ground but it will not reduce
the amount of voltage available to the spark plugs (26) Answer:
False
◉ T/F If a vacuum gauge shows a low but steady vacuum when the
engine is at idle, the problem is a noncommon type (26) Answer:
False
◉ T/F Detonation can cause damage to the pistons, values, bearings,
and spark plugs (26) Answer: True
◉ T/F An ignition control module may overheat if it is loosely
mounted Answer: True
◉ T/F Hall-effect sensor problems are very different from magnetic
pulse generators (26) Answer: False
