AFD 111

In what year did PCV system monitoring become mandatory? A) 2004 B) 1996 C) 1988 D) 2000

A) 2004

What term is used to describe combustion gasses leaking past cylinder rings? A) Blow by B) Manifold pressure C) Sludge D) Crankcase build-up

A) Blow by

A waste-spark-type ignition system fires ________. A) Two spark plugs at the same time B) One spark plug with reverse polarity C) One spark plug with straight polarity D) All of the above

D) All of the above

The primary (low-voltage) ignition system must be working correctly before any spark occurs from a coil. Which component is NOT in the primary ignition circuit? A) Spark plug wires B) Ignition module C) Pick up coil D) Ignition switch

D) All of the above

The PCV system controls which exhaust emission(s)? A) HC B) CO C) NOx D) Both A and B

D) Both A and B

Distributor ignition systems can be triggered by a ________. A) Hall effect sensor B) Magnetic sensor C) Spark sensor D) Either A or B

D) Either A or B

How much of the air needed by the engine flows through the PCV system when the engine is at idle speed? A) 1-3% B) 5-10% C) 10-20% D) Up to 30%

D) Up to 30%

Which statement below is correct? A) Coil on plug systems use one ignition coil per cylinder B) All coil on plug systems require ignition wires C) Ignition control circuits cannot sense the voltage required to fire a spark plug D) It is not possible to control the ignition timing for each cylinder separately

A) Coil on plug systems use one ignition coil per cylinder

All these terms have been used to describe communication between the ignition module and PCM EXCEPT ________. A) DIS B) EST C) SPOUT D) IC

A) DIS

Coil polarity is determined by the ________. A) Direction of the coil windings B) Turn ratio C) Direction of lamination D) Saturation direction

A) Direction of the coil windings

Which of these terms is specified by the Society of Automotive Engineers (SAE) as the term describing an ignition system that does NOT use a distributor? A) EI B) DI C) ND D) IGN

A) EI

What is the principle used to create high voltage from low voltage? A) Electromagnetic induction B) Electromagnetic multiplication C) Electromechanic induction D) Electromagnetic magnification

A) Electromagnetic induction

Which switching device uses a shutter blade and sensor to detect a magnetic field? A) Hall-effect switch B) Pickup coil C) Optical sensor D) Ignition coil

A) Hall-effect switch

The ignition system pickup coil or trigger is usually electrically connected to the ________. A) Ignition module B) Ignition coil C) Distributor cap D) Rotor

A) Ignition module

The following statements are all correct EXCEPT ________. A) Knock sensors require voltage input from the PCM to function properly. B) Ignition timing may be either ATDC, at TDC, or BTDC. C) When the PCM detects detonation using the knock sensor, it will retard ignition timing. D) The knock sensor may be ignored by the PCM at idle.

A) Knock sensors require voltage input from the PCM to function properly.

Which statement below is correct? A) Most ignition systems work by switching the negative side of the coil primary windings to ground. B) Most ignition systems work by switching the positive side of the coil windings to power. C) Most ignition systems work by switching the circuit grounding the ignition coil's secondary windings. D) Most ignition systems work by switching the circuit to power the ignition coil's secondary windings.

A) Most ignition systems work by switching the negative side of the coil primary windings to ground.

The following statements are all correct EXCEPT ________. A) No ignition system uses the PCM to control ignition timing. B) Up integrated ignition controls use the PCM to control ignition timing. C) Waste spark systems use a signal from the PCM once the engine is running. D) Waste spark systems do not need a timing signal from the PCM when cranking the engine.

A) No ignition system uses the PCM to control ignition timing

Which switching device uses LEDs? A) Optical sensor B) Pickup coil C) Hall effect D) Magnetic reluctor

A) Optical sensor

Which switching device creates its own electrical voltage pulse? A) Pickup coil B) Hall-effect switch C) Optical sensor D) Ignition coil

A) Pickup coil

Which switching device used below is also called a "magnetic pulse generator"? A) Pickup coil B) Hall-effect switch C) Optical sensor D) Ignition coil

A) Pickup coil

The ignition module has direct control over the firing of the coil(s) of an EI system. Which component(s) triggers (controls) the module? A) Pickup coil B) Computer C) Crankshaft sensor D) All of the above

A) Spark plug wires

Technician A says that a 3 × 5 card should be held against the oil fill opening if the PCV system is operating correctly. Technician B says that if a PCV valve rattles, it definitely is good. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

A) Technician A only

Which statement below is correct? A) The primary coil windings are designed for higher current (2-6 Amperes). B) The secondary coil windings are designed for higher current (2-6 Amperes). C) The primary coil windings are made of thinner wire than the secondary windings. D) The primary coil windings have more turns of wire than the secondary windings.

A) The primary coil windings are designed for higher current (2-6 Amperes).

How many ignition coils should you expect to find on a V6 engine using a waste spark system? A) Three B) Two C) One D) Six

A) Three

Which statement below is correct? A) Turning off the low voltage primary coil induces a high voltage in the secondary windings. B) Turning on the low voltage primary coil induces a high voltage in the secondary windings. C) No voltage is induced in the primary circuit. D) No voltage is induced in the secondary circuit.

A) Turning off the low voltage primary coil induces a high voltage in the secondary windings

The ignition system is usually divided into ________ different sections. A) Two B) One C) Three D) Four

A) Two

All engines are equipped with a PCV valve. A) True B) False

B) False

The pulse generator ________. A) Fires the spark plug directly B) Signals the electronic control unit (module) C) Signals the computer that fires the spark plug directly D) Is used as a tachometer reference signal by the computer and has no other function

B) Signals the electronic control unit (module)

Technician A says that if a PCV valve rattles, then it is okay and does not need to be replaced. Technician B says that if a PCV valve does not rattle, it should be replaced. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

B) Technician B only

Technician A says that the PCV system should create a slight pressure in the crankcase at idle. Technician B says that the PCV system should create a slight vacuum in the crankcase at 2,500 RPM. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

B) Technician B only

Technician A says that the primary and secondary ignition systems are never connected. Technician B says that the primary and secondary windings are connected in some ignition coils. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

B) Technician B only

Technician A says that the primary coil has more windings. Technician B says that the secondary coil has more windings. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

B) Technician B only

How does a waste-spark ignition system fire the spark plugs? A) The polarity reverses at each firing (flip flops) B) The same plug always is fired straight or reverse polarity C) The waste spark is sent to the cylinder next to the cylinder being fired D) Both A and C

B) The same plug always if fired straight or reverse polarity

Identify the type of ignition system shown in this diagram. A) Capacitor discharge system B) Waste spark ignition system C) Coil-on-plug ignition system D) Distributor ignition system

B) Waste spark ignition system

Technician A looks for engine speed (RPM) when cranking an engine that will not start. Technician B says that a problem in the primary circuit could make the tachometer not work. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Technician A says that PCV valves should rattle when shaken. Technician B says that a defective PCV system may cause leaking engine seals. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Technician A says that a two-wire COP system uses the PCM to trigger the coil. Technician B says that a three-wire COP system has an ICM built into the coil assembly. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Technician A says that a waste spark ignition system fires two spark plugs at the same time. Technician B says that the waste spark ignition system uses ignition coils connected to companion cylinders. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Technician A says that if the PCV valve were defective or clogged, the engine could idle rough. Technician B says that the engine may stall. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Technician A says that in bypass mode, the ignition system is timed by the ignition module. Technician B says that in bypass mode, the ignition system does not use the PCM to time spark plug firing. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Technician A says that the ignition timing cannot be adjusted on waste spark ignition systems. Technician B says that most waste spark systems use a crankshaft position sensor. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Two technicians are discussing distributor ignition. Technician A says that the pickup coil or optical sensor in the distributor is used to pulse the ignition module (igniter). Technician B says that some distributor ignition systems use an optical sensor. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Waste spark ignition is being discussed. Technician A says it requires more voltage to fire the compression cylinder than the companion cylinder. Technician B says waste spark systems that use compression sensing electronics do not require a camshaft sensor for engine position. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

C) Both technicians A and B

Identify the type of ignition system shown in this diagram. A) Capacitor discharge system B) Waste spark ignition system C) Coil-on-plug ignition system D) Distributor ignition system

C) Coil-on-plug ignition system

A compression-sensing ignition system uses a ________ type ignition. A) Distributor B) Coil-on-plug C) Waste-spark D) All of the above

C) Waste-spark