Engine Performance 1 Final Exam
Questions & Answers (Grade A+)
The non-electronic spark advance of an engine is not increasing as
engine rpm increases. Technician A says the vacuum advance unit
may have a leaking diaphragm. Technician B says the centrifugal
advance weights may be stuck. Who is correct? -
correct answer ✅Technician B only
A loose spark plug is likely to cause: -
correct answer ✅Premature ignition coil failure
A vehicle with an ignition system triggered by a magnetic pulse
generator will not start. Technician A says that the air gap should be
checked using a go no-go stainless feeler gauge. Technician B says
that the air gap is not adjustable. Who is correct? -
correct answer ✅Both Technicians A and B
All of the following are types of electronic ignition systems (EI)
except: -
correct answer ✅distributor
An engine's initial timing is set at 6 degrees ATDC; the specification
is 3 degrees BTDC. Technician A says the timing is overly advanced
and must be retarded 9 degrees. Technician B says the timing is
,Engine Performance 1 Final Exam
Questions & Answers (Grade A+)
overly retarded and must be advanced. Who is correct? -
correct answer ✅Technician B only
An ohmmeter placed across the primary terminals of an ignition
coil indicates 896 k ohms. Technician A says the coil windings are
shorted. Technician B says the coil needs to be replaced. Who is
correct? -
correct answer ✅Technician B only
In the diagram of the V-6 engine, which color represents cylinder
#1? -
correct answer ✅orange
Spark plugs are being discussed. Technician A says to remove the
plugs when the engine is at normal operating temperature.
Technician B says to use a torque wrench to tighten them. Who is
correct? -
correct answer ✅Technician B only
The dwell section of a primary scope pattern represents: -
correct answer ✅the amount of time that the primary current is
turned on
, Engine Performance 1 Final Exam
Questions & Answers (Grade A+)
Too high of a heat range spark plug will: -
correct answer ✅decrease plug life
When diagnosing a no-start condition on a vehicle with no spark,
Technician A says that the ignition module should be tested for a
digital switching signal. Technician B says the Hall effect CMP sensor
should be tested for a digital switching signal. Who is right? -
correct answer ✅Both A and B
in the diagram of the V-6 engine, which color represents cylinder
#4? -
correct answer ✅none of the above
A 4 cylinder engine has the following firing voltages: 6 KV, 12 KV, 7
KV, and 7 KV. Technician A states that all plugs are firing within the
normal range. Technician B states that there is too much variation
between the highest and lowest values. Who is correct? -
correct answer ✅Both Technicians
A 6 cylinder engine with a coil on plug ignition system has how
many coils? -
correct answer ✅6
Questions & Answers (Grade A+)
The non-electronic spark advance of an engine is not increasing as
engine rpm increases. Technician A says the vacuum advance unit
may have a leaking diaphragm. Technician B says the centrifugal
advance weights may be stuck. Who is correct? -
correct answer ✅Technician B only
A loose spark plug is likely to cause: -
correct answer ✅Premature ignition coil failure
A vehicle with an ignition system triggered by a magnetic pulse
generator will not start. Technician A says that the air gap should be
checked using a go no-go stainless feeler gauge. Technician B says
that the air gap is not adjustable. Who is correct? -
correct answer ✅Both Technicians A and B
All of the following are types of electronic ignition systems (EI)
except: -
correct answer ✅distributor
An engine's initial timing is set at 6 degrees ATDC; the specification
is 3 degrees BTDC. Technician A says the timing is overly advanced
and must be retarded 9 degrees. Technician B says the timing is
,Engine Performance 1 Final Exam
Questions & Answers (Grade A+)
overly retarded and must be advanced. Who is correct? -
correct answer ✅Technician B only
An ohmmeter placed across the primary terminals of an ignition
coil indicates 896 k ohms. Technician A says the coil windings are
shorted. Technician B says the coil needs to be replaced. Who is
correct? -
correct answer ✅Technician B only
In the diagram of the V-6 engine, which color represents cylinder
#1? -
correct answer ✅orange
Spark plugs are being discussed. Technician A says to remove the
plugs when the engine is at normal operating temperature.
Technician B says to use a torque wrench to tighten them. Who is
correct? -
correct answer ✅Technician B only
The dwell section of a primary scope pattern represents: -
correct answer ✅the amount of time that the primary current is
turned on
, Engine Performance 1 Final Exam
Questions & Answers (Grade A+)
Too high of a heat range spark plug will: -
correct answer ✅decrease plug life
When diagnosing a no-start condition on a vehicle with no spark,
Technician A says that the ignition module should be tested for a
digital switching signal. Technician B says the Hall effect CMP sensor
should be tested for a digital switching signal. Who is right? -
correct answer ✅Both A and B
in the diagram of the V-6 engine, which color represents cylinder
#4? -
correct answer ✅none of the above
A 4 cylinder engine has the following firing voltages: 6 KV, 12 KV, 7
KV, and 7 KV. Technician A states that all plugs are firing within the
normal range. Technician B states that there is too much variation
between the highest and lowest values. Who is correct? -
correct answer ✅Both Technicians
A 6 cylinder engine with a coil on plug ignition system has how
many coils? -
correct answer ✅6
