WRITTENTEST SERVICING IGNITION SYSTEMS 7Name Date Score _

INSTRUCTIONS

OBJECTIVE 1

Write the letter of the answer on each blank provided.

Identify types of ignition systems shown in illustrations.

Figure 1

1

3

1. True or False: Figure 1 is an electronic distributorignition system.

A. trueB. false

May be photocopied for student use.

TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 25 .

Figure 2

,

1

8

5

.,~--2

-t(!---3

~--4

Used with permission of Saab Cars U.S.A. Inc. May not be photocopied or reproduced except for student use.

OBJECTIVE 2

"J

:'-·,·-i

Label ignition system components indicated on illustrations.

Directions: Refer to Figure 1 and Figure 2 to answer questions 2 - 8.

2. In Figure 1, which of the following ignition systemcomponents is indicated by the number I?

A. batteryB. ignition control module (with ignition coils)C. ignition switchD. spark plugs

3. In Figure 1, which of the following ignition systemcomponents is indicated by the number 3?

A. batteryB. engine computetC. ignition control module (with ignition coils)D. ignition switch

May be photocopied for student use.

TEACHER MATERIALS· Engine Performance SpecialistWRITIEN TEST - CIMC . 7 - 26

4. In Figure 1, which of the following ignition systemcomponents is indicated by the number 2?

A. batteryB. engine computerC. ignition control module (with ignition coils)D. ignition switch

5. In Figure 2, which of the following ignition systemcomponents is indicated by the number 6?

A. distributorB. ignition coilC. ignition control moduleD. vacuum advance

6. In Figure 2, which of the following ignition systemcomponents is indicated by the number 5?

A. distributor capB. ignition coilC. ignition control moduleD. ignition switch

7. In Figure 2, which of the following ignition systemcomponents is indicated by the number 3?

A. distributorB. distributor capC. ignition coilD. vacuum advance

8. In Figure 2, which of the following ignition systemcomponents is indicated by the number 2?

A. distributorB. distributor capC. spark plugsD. vacuum advance

May be photocopied for student use.

TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 27

OBJECTIVE 3 Match the names of ignition system components todescriptions of their functions.

9. Which of the followingignition system components useselectricity from the ignition coil to ignite the air-fuelmixture in the cylinder?

A. batteryB. distributor capC. ignition coilD. spark plug

-10. Which of the followingignition system componentsadvances spark timing?

A. distributorB. ignition coilC. ignition control moduleD. vacuum advance

11. Which of the followingignition system componentsreports the camshaft and the valve position on thenumber-one piston?

A. camshaft position sensorB. crankshaft position sensorC. ignition control moduleD. vacuum advance

12. Which of the followingignition system componentsincreases the low voltage from the battery to the highervoltage required to create a spark at the spark plug?

A. distributor capB. ignition coilC. ignition switchD. spark plug

13. Which of the followingignition system componentsreceives information from various sources, analyzesthat information, and uses it to interrupt the ground tothe coils at the correct instant?

A. distributorB. engine computerC. ignition control moduleD. vacuum advance

May be photocopied for student use.

TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 28

OBJECTIVE 4

14. Which of the following ignition system componentstransfers electrical power from the coil wire to therotors and then receives current from the rotor andtransfers it to the spark plug wires?

A. distributorB. distributor capC. ignition coilD. ignition control module

15. Which of the following ignition system componentsreports engine vibration indicating the need for lessspark advance?

A. camshaft position sensorB. crankshaft position sensorc. engine computerD. knock sensor

Compare and contrast design characteristics of types ofignition systems.

16. True or False: Only in an electronic distributorlessignition system is the regulation of spark timingcontrolled by a computer.

A. trueB. false

17. True or False: The ftrtng order of cylinders isdetermined by the distributor on an electronicdistributor ignition system, but the flring order ofcylinders is determined by a computer on an electronicdistributorless ignition system.

A. trueB. false

18. True or False: Both electronic distributorless andelectronic distributor ignition systems ignite the air-fuelmixture in the cylinders and require regularmaintenance.

A. trueB. false

May be phat?capied far student use.

TEACHER MATERIALS - Engine Performance SpecialistWRIDEN TEST - CIMC - 7 - 29

OBJECTIVE 5

OBJECTIVE 6

~~cribe the function of the types of triggering systems usedl':~~~':).on 'electrcnlc ignition systems.

19. Which of the followingdescribes the operation of amagnetic pickup triggering system?

A. uses a coil magnetic type sensor to detect therotation of a toothed wheel and sends a signal to theignition control unit

B. uses a coil magnetic type sensor to detect therotation of trigger blades or shutters and sends asignal to the ignition control unit

c. uses a semiconductor sensor to detect the rotationof trigger blades or shutters and sends a signal tothe ignition control unit

D. uses virtually the same operation as a Hall effecttriggering system

Distinguish between descriptions of the ignition system'sprimary circuit and secondary circuit components.

Indicate whether the questions below refer to primary orsecondary circuits.

20. This ignition circuit is made up of those parts throughwhich the high voltage from the ignition coil flows.

A. primary circuitB. secondary circuit

21. This ignition circuit is made up of those parts throughwhich low-voltage battery current flows.

A. primary circuitB. secondary circuit

May be photocopied for student use.

TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 30

OBJECTIVE 7 Label the parts of an ignition coil indicated on an illustration.

4

22. Which of the followingignition coil parts is indicated bythe number 6 on the illustration?

A. coil capB. coil caseC. primary windingD. secondary winding

23. Which of the followingignition coil parts is indicated bythe number 2 on the illustration?

A. coil capB. high-voltage terminalC. primary terminalsD. sealing nipple

May be photocopied for student use.

otu»:TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 31

OBJECTIVE 8

24. Which of the following ignition coil parts is Jvdicated bythe number 5 on the illustration? 01'''00;

A. glass insulationB. laminattonsC. primary terminalsD. primary winding

25. Which of the following ignition coil parts is indicated bythe number 8 on the illustration?

A. coil capB. coil caseC. glass insulationD. lamination

Label the parts of a distributor indicated on an illustration.

2

3

4

26. Which of the following distributor parts is indicated bythe number 2 on the illustration?

A. condenserB. distributor capC. coverD. housingE. rotor

May be photocopied for student.use.~.. :::- r

TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 32

OBJECTIVE 9

27. Which of the followingdistributor parts is indicated bythti~mber 3 on the illustration?

A. distributor capB. coilC. coverD. housingE. rotor

28. Which of the followingdistributor parts is indicated bythe number 6 on the illustration?

A. distributor capB. contact pointsC. coverD. housingE. rotor

Label the parts of a spark plug indicated on an illustration.

6 7

29. Which of the followingspark plug parts is indicated bythe number 1 on the illustration?

A. center electrodeB. insulator tipC. side electrodeD. terminal

May be photocopied for student use.entu..

TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 33

,,'

i!

OBJECTIVE 10

30. Which of the followingspark plug parts is indicated bythe number 4 on the illustration?

A. air gapB. center electrodeC. insulator tipD. side electrode

31. Which of the followingspark plug parts is indicated bythe number 8 on the illustration?

A. gasket or sealB. insulator ribsC. shellD. side electrode

32. Which of the followingspark plug parts is indicated bythe number 6 on the illustration?

A. air gapB. center electrodec. gasket or sealD. side electrode

Match the names of types of -spark plugs to descriptions oftheir design characteristics.

33. Which of the following types of spark plugs hasmultiple electrodes requiring a wide jump from thecenter electrode to the side electrodes?

A. hot spark plugB. multiple-electrode spark plugC. resistor spark plugD. wide-gap spark plug

34. Which of the followingtypes of spark plugs has a shortinsulator tip and a cooler operating temperature,preventing overheating and preignition in engines thatoperate at higher speeds?

A. cold spark plugB. narrow gap spark plugC. single-electrode spark plugD. resistor spark plug

May be photocopied for student use.'-", ;.;:-~ .,'. c-.

TEACHER MATERIALS - Engine Performance SpecialistWRITTEN TEST - CIMC - 7 - 34