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Use material from Unit Two, and Chapter 8, Auto
Fundamentals - Stockel, Stockel
and Johanson, to complete the following questions.
1. What is the maximum voltage that some modern ignition systems can produce?
a. 20,000
b. 50,000
c. 60,000
d. 100,000
2. What is the primary job of the ignition coil?
a. convert low voltage to high voltage
b. convert high voltage to low voltage
c. reduce primary voltage
d. reduce secondary voltage
3. What causes the electronic module to stop the flow of primary current?
a. a signal from the contact points
b. a signal from the triggering device
c. coil self-induction
d. coil over-voltage
4. Dwell is controlled by the ________
a. vacuum advance
b. centrifugal advance
c. distributor cap
d. none of the above
5. Where is the Power Transistor located?
a. pickup coil assembly
b. ignition module
c. coil
d. ignition switch
6. Triggering devices are operated by rotation of the ______
a. distributor shaft
b. crankshaft
c. camshaft
d. all of the above, depending on the design
7. If the spark plug heat range is too cold, what could happen?
a. fouling
b. preignition
c. detonation
d. weak spark
8. A spark plug gap of .025" (.635 mm) would be found on
a. the newest vehicles
b. vehicles with electronic ignition
c. older vehicles
d. both A and B
9. The most common spark plug gaps used today are about ______
a. .025"(.635 mm) to .045"(1.1 mm)
b. .045"(1.1 mm) to .065"(1.65 mm)
c. .065"(1.65 mm) to .095"(2.413 mm)
d. .095"(2.413 mm) to .120"(3.04 mm)
10. Using a resistor spark plug reduces what undesirable condition?
a. static
b. radio interference
c. electrode overheating
d. both A and B
11. A six cylinder engine with direct ignition has how many ignition coils?
a. 1
b. 2
c. 3
d. 6
12. In a centrifugal advance mechanism the spark advance responds to
a. engine load
b. calibrated weight springs
c. engine speed
d. distributor breaker points
13. In Solid State ignition systems
a. no coil is used
b. no breaker points are used
c. breaker points carry low current
d. secondary voltage is lower that point type
14. Technician A says that the contact points and condenser
are part of the secondary
circuit. Technician
B says that all components in the distributor are part of the
secondary circuit.
Who is right?
a. A only
b. B only
c. both A and B
d. neither A nor B
15. Dwell is defined as
a. point gap in thousandths of an inch
b. the voltage in the primary circuit
c. the length of time in degrees of rotation the points are open
d. the length of time in degrees of rotation the points are closed
16. What component is used to open and close the primary circuit
on an electronic
ignition system?
a. transistor
b. condenser
c. diode
d. points
17. Technician A says that when the coil fires on a DIS system,
it actually fires two spark
plugs at the same time.
Technician B says that when the DIS system fires, both cylinders
are on the compression
stroke at the same time. Who is right?
a. A only
b. B only
c. both A and B
d. neither A nor B
18. Technician A says that a DIS system uses one coil for each
spark plug. Technician B
says that some systems
use one coil for every two spark plugs. Who is correct?
a. A only
b. B only
c. both A and B
d. neither A nor B
19. Technician A says that the coil fires when the points open.
Technician B says that the
coil fires when the points
close. Who is right?
a. A only
b. B only
c. both A and B
d. neither A nor B
20. An ohmmeter is connected from the coil + terminal to the
coil secondary tower. Technician
A says that this will
test the coil primary resistance. Technician B says that this will
check
secondary resistance.
Who is right?
a. A only
b. B only
c. both A and B
d. neither A nor B
21. Technician A says that ignition systems usually put out
in excess of 40KV. Technician B
says that the system
will only put out enough voltage to jump the gap at the spark
plug. Who is right?
a. A only
b. B only
c. both A and B
d. neither A nor B
22. A distributor pickup coil (pulse generator) produces electricity and sends it to the
a. starter relay
b. coil
c. distributor
d. ignition module
23. Which components are connected in parallel?
a. ignition switch and primary circuit
b. coil primary and resistor
c. points and condenser
d. module and coil primary
24. Spark plug wires have resistance to prevent
a. plug fouling
b. miss under load
c. radio interference
d. none of the above
25. Vacuum and centrifugal advance mechanisms can be found
on engines equipped
with ____________
ignition systems.
a. direct
b. electronic
c. compression
d. distributorless