cameroon gce A level electrical and electronic system 1

cameroon gce A level electrical and electronic system 1

cameroon gce A level electrical and electronic system 1

The function of the zener diode in the electronic control unit of an alternator is to act as a
A Current amplifier
B Voltage amplifier
C Voltage switch
D Current switch
_____________________________________________
2. The starter component tested with a growler is the:
A field coils
B armatures
C commutator
D solenoid
_____________________________________________
3. A bulb rated 12V 36W will consume:
A 1/3 amps
B 3 amps
C 14 amps
D 48 amps
_____________________________________________
4. Before taking the battery off charge, which one of the following actions should be taken?
A The battery charger should be switch off
B A hydrometer reading of each cell should be taken
C The terminals should be checked
D The cell stoppers should be refitted
_____________________________________________
5. Identify the test name below

A Stator to frame insolation test
B Stator winding resistance test
C Rotor winding resistance test
D Rotor to frame insolation test
_____________________________________________
6. The wattage of a stop light bulb is normally
A 5W
B 6W
C 12W
D 21W
_____________________________________________
7. A Darlington transistor switch:
A higher current
B higher voltage
C higher resistance
D higher interest
_____________________________________________
8. The fuel injector solenoid is energized by the:
A ignition switch
B computer
C airflow sensor
D ignition module
9. The total resistance of two resistors of 60 ohms and 40 ohms connected in parallel
A 16 Ohms
B 100 Ohms
C 24 Ohms
D 20 Ohms
_____________________________________________
10. Deep cycling means:
A Overcharging the battery
B Overfilling or under-filling the battery with water
C The battery is fully discharged and then recharged
D The battery is overfilled with acid
_____________________________________________
11. Star and Delta are types of
A Rotor windings
B Stator windings
C Field windings
D Regulator winding
_____________________________________________
12. Units of Metric wire size are measured in.
A meters
B cubic centimeters
C square millimeters
D cubic millimeters
_____________________________________________
13. The sum of the voltage drops in a series circuit equals the:
A Individual voltages
B Source voltage
C
D
_____________________________________________
14. The approximate electric current used by a 12 volts wiper motor when it is in proper working condition is
A 1.5-4A
B 15-40A
C 0.15-0.4A
D 6A
_____________________________________________
15. Headlamp circuit relay is to:
A take the load off the control switch
B add the load of the control switch
C maintain circuit voltage
D reduce circuit voltage
_____________________________________________
16. Which of the following will not affect the resistance of a conductor?
A Type of material
B Length of conductor
C Physical condition of conductor