Batteries, Starting And Charging System
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Chapter 38
- 1._____________ is/are fundamental to the automobile.
- A.
A 12-volt storage battery
- B.
An engine starting system
- C.
A charging system
- D.
All of the above
- 2.The traditional automobile battery type is the:
- A.
Lead acid.
- B.
Ion.
- C.
Helium.
- D.
Nitrogen.
- 3.The nominal voltage of each cell of a battery is _____________ volts.
- A.
1.9
- B.
2.0
- C.
2.1
- D.
2.2
- 4.The following battery has removable cell covers.
- A.
Sealed
- B.
Maintenance free
- C.
Lead acid flooded cell
- D.
None of the above
- 5.A technician must always wear ______________ when working on a battery.
- A.
Designer clothes
- B.
Earrings
- C.
Tennis shoes
- D.
Safety glasses
- 6.Tech A says that batteries should be disposed of in landfills. Tech B says that batteries must be recycled. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 7.Tech A says that the starter converts mechanical energy to electrical energy. Tech B says that the starter converts electrical energy to mechanical energy. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 8.Tech A says that the alternator converts electrical energy into mechanical energy. Tech B says that the alternator converts mechanical energy into electrical energy. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 9.The _____________ monitors battery voltage and varies current flow through the rotor field circuit.
- A.
Slip rings
- B.
Rotor
- C.
Voltage regulator
- D.
Armature
- 10.The process of converting alternating current (AC) into direct current (DC) is called:
- A.
Rectification.
- B.
Electromotive force (EMF).
- C.
Counter-electromotive force (CEMF).
- D.
Recertification.
- 11.The ______________ allows current to flow one way in the rectifier assembly.
- A.
Diode
- B.
Thyroid
- C.
Electromotive force (EMF)
- D.
Counter-electromotive force (CEMF)
- 12.Tech A says that to do a quick test on an alternator charging system is to remove one of the cables off the battery posts, and if the engine continues to run, then the charging system is good. Tech B says that the practice of removing a battery cable connection can damage the electronics on the vehicle. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 13.On modern vehicles, what replaced the voltage regulator?
- A.
Power train control module (PCM) or body control module (BCM)
- B.
Electronic control module (ECM)
- C.
Electromotive force (EMF)
- D.
Counter-electromotive force (CEMF)
- 14.Tech A says that the standard 12-volt car battery has 3 cells with 4.2 volts in each cell. Tech B says that the standard 12-volt car battery has 4 cells with 3.3 volts each. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 15.Tech A says that failure of a battery hold down can cause battery plate damage. Tech B says that a bungee cord is a suitable battery hold down. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 16.Tech A says you can measure up to 100 amps directly through the meter. Tech B says when checking high volts, you need to use a volt clamp so you don't damage the digital volt-ohmmeter (DVOM). Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 17.Tech A says when checking resistance in a circuit, you need to have power connected to the component. Tech B says ideally, you should have a component disconnected. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 18.Tech A says Ohm's law will show how many amps are needed in a circuit with 110 ohm resistor and a 12-volt power supply. The amps needed are:
- A.
12 amps.
- B.
1.2 amps.
- C.
0.12 amps.
- D.
0.012 amps.
- 19.What materials make a good insulator?
- A.
Copper and aluminum
- B.
Ceramic and plastic
- C.
Both A and B
- D.
None of the above
- 20.Tech A says high resistance causes an increase in current flow. Tech B says a voltage drop is another name for high resistance. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
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