Level 2 ITA Practice Exam
A device that monitors the temperature of a starter and opens a relay circuit to interrupt the
starter cranking if the motor temperature gets too hot. - Answer: Overcrank Protection
thermostat (OCP)
A Diesel engine operating at full throttle will have - Answer: Maximum horsepower at rated
speed and maximum torque below rated speed
A Diesel engine with a mechanical unit injector has a cylinder knock with some black smoke.
What is the cause - Answer: Excessive fuel delivered to one cylinder
A larger stator with more wires in each loop has more power than one with less. True or false -
Answer: true
A sensor will be considered active or passive depending on whether they use power supplied by
the ecm to operate. True or false - Answer: true
A six cylinder, four-stroke cycle engine has a firing order of 1-5-3-6-2-4. If
number 1 piston is at TDC of the power stroke, when will number 6 cylinder fire? - Answer: 360
degrees after number 1 fires
After replacing a fuel transfer pump how is air bled out of the system - Answer: Crank over the
engine with the low pressure line entering the injection pump loose
Alternators are better at producing current than generators. True or false. - Answer: true
Alternators can only produce current in one direction. True or false - Answer: false
,Level 2 ITA Practice Exam
Alternators that require external excitation will have an ignition excite. True or false - Answer:
true
An engine oil analysis indicates higher than normal levels of copper and aluminum. Where
would it be coming from - Answer: bearings
An inline six cylinder, two-stroke cycle engine has how many degrees of rotation between firing
pulses? - Answer: 60
An oil analysis shows chromium, where is it coming from - Answer: piston rings
Battery current and counter electromotive force current both flow through a motor but in
opposite directions. True or false - Answer: true
Cap screws provide higher clamping force than retaining studs. True or false - Answer: false
Combination wye and Delta stators are commonly found in heavy duty alternators. True or false
- Answer: false
Describe how to test the battery in a vehicle - Answer: Crank the engine with the voltmeter
attached to the battery. Compare the specs to see if the battery is weak
Describe how you would test an alternator - Answer: Establish a 20 amp charge rate and voltage
drop test between output of alternator to positive terminal of battery. Then check from battery
ground to alternator ground
Diesel engine design is generally optimized for air inlet temperature of approximately - Answer:
15-32 degrees c
, Level 2 ITA Practice Exam
Engine hard to start after sitting overnight. No evidence of a fuel leak. What could be the cause -
Answer: Loose primary filter
Field coils are wired in parallel with the armature windings through the brushes. True or false -
Answer: false
Gear Reduction starters can reduce starter weight by more than 50%. True or false - Answer:
true
How are piston ring gaps spread when placed on the piston - Answer: Evenly and not on the
thrust side
How are trunk pistons crown and skirt manufactured - Answer: as one piece
How can a reduction gear drive be identified - Answer: It's offset from the motor housing
How can you check if a wet liner lower seal is leaking - Answer: Remove oil pan and pressurized
cooling system
How can you identify a wye winding - Answer: it has 4 ends
How do you apply the flush to a coolant system - Answer: Bottom of the rad and top of the
engine. Done separately
How do you do a no load test on a starter - Answer: Apply verified voltage to starter and note
speed and amp draw.
A device that monitors the temperature of a starter and opens a relay circuit to interrupt the
starter cranking if the motor temperature gets too hot. - Answer: Overcrank Protection
thermostat (OCP)
A Diesel engine operating at full throttle will have - Answer: Maximum horsepower at rated
speed and maximum torque below rated speed
A Diesel engine with a mechanical unit injector has a cylinder knock with some black smoke.
What is the cause - Answer: Excessive fuel delivered to one cylinder
A larger stator with more wires in each loop has more power than one with less. True or false -
Answer: true
A sensor will be considered active or passive depending on whether they use power supplied by
the ecm to operate. True or false - Answer: true
A six cylinder, four-stroke cycle engine has a firing order of 1-5-3-6-2-4. If
number 1 piston is at TDC of the power stroke, when will number 6 cylinder fire? - Answer: 360
degrees after number 1 fires
After replacing a fuel transfer pump how is air bled out of the system - Answer: Crank over the
engine with the low pressure line entering the injection pump loose
Alternators are better at producing current than generators. True or false. - Answer: true
Alternators can only produce current in one direction. True or false - Answer: false
,Level 2 ITA Practice Exam
Alternators that require external excitation will have an ignition excite. True or false - Answer:
true
An engine oil analysis indicates higher than normal levels of copper and aluminum. Where
would it be coming from - Answer: bearings
An inline six cylinder, two-stroke cycle engine has how many degrees of rotation between firing
pulses? - Answer: 60
An oil analysis shows chromium, where is it coming from - Answer: piston rings
Battery current and counter electromotive force current both flow through a motor but in
opposite directions. True or false - Answer: true
Cap screws provide higher clamping force than retaining studs. True or false - Answer: false
Combination wye and Delta stators are commonly found in heavy duty alternators. True or false
- Answer: false
Describe how to test the battery in a vehicle - Answer: Crank the engine with the voltmeter
attached to the battery. Compare the specs to see if the battery is weak
Describe how you would test an alternator - Answer: Establish a 20 amp charge rate and voltage
drop test between output of alternator to positive terminal of battery. Then check from battery
ground to alternator ground
Diesel engine design is generally optimized for air inlet temperature of approximately - Answer:
15-32 degrees c
, Level 2 ITA Practice Exam
Engine hard to start after sitting overnight. No evidence of a fuel leak. What could be the cause -
Answer: Loose primary filter
Field coils are wired in parallel with the armature windings through the brushes. True or false -
Answer: false
Gear Reduction starters can reduce starter weight by more than 50%. True or false - Answer:
true
How are piston ring gaps spread when placed on the piston - Answer: Evenly and not on the
thrust side
How are trunk pistons crown and skirt manufactured - Answer: as one piece
How can a reduction gear drive be identified - Answer: It's offset from the motor housing
How can you check if a wet liner lower seal is leaking - Answer: Remove oil pan and pressurized
cooling system
How can you identify a wye winding - Answer: it has 4 ends
How do you apply the flush to a coolant system - Answer: Bottom of the rad and top of the
engine. Done separately
How do you do a no load test on a starter - Answer: Apply verified voltage to starter and note
speed and amp draw.
