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Automotive > Ase test > Flashcards

Ase test Flashcards

1
Q

i,v,r stands for what?

A

Amps, Volts, Resistance (ohms)

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2
Q

How to connect an Ammeter

A

Put it in circuit

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3
Q

How to connect a Voltmeter

A

Provide power and ground.

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4
Q

How to connect an Ohmmeter (3 steps)

A

Press the leads together, make sure what your ohming out is out of the circuit. Test the ends on the power and ground of what your testing.

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5
Q

Parts of a Transistor

A

Emitter, Base, Collector

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6
Q

5 Parts of a circuit

A

Power, load, circuit protection, control, conductor

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7
Q

100 mV

A

0.1 Volts

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8
Q

120 mA

A

.120 Amps

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9
Q

what is MV and mV

A

M is Mega, m is milli

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10
Q

A circuit has 5 different resistors with all different resistances (5 ohm, 14 ohms, 25 ohms ect…) What is the resistance of the circut?

A

Less then the least resistor.

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11
Q

Which post on a battery is bigger?

A

Positive

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12
Q

What does CCA stand for?

A

Cold Cranking Amps

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13
Q

Does it matter which side you test for amps on a circuit? Why?

A

No. Amps stay the same throughout the whole circuit.

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14
Q

When load testing a battery how many Amps do you test it with?

A

half the number of the batteries CCA

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15
Q

When load testing how long do you hold it until reading?

A

15 seconds.

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16
Q

What is the lowest the battery is allowed to drop?

A

9.6 volts or more

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17
Q

How charged must the battery be when load testing?

A

75% soc or 12.4v

18
Q

When charging a battery what number of volts is to not be exceeded?

A

16 volts.

19
Q

What are electrolytes composed of

A

Sulfuric acid and water.

20
Q

What side of the battery do you amm test when doing a drain or draw test

A

Ground

21
Q

Parasitic draw test protocol

A

Take the key out of the ignition, break the circuit, and test on the ground cable to see if there is an excessive draw.

22
Q

how long should a battery last

A

3-5 years

23
Q

The starter can either be connected to what two gears?

A

Flywheel or Flex plate

24
Q

What is a pinion gear?

A

The pinion gear is the small gear that is pushed out to turn the fly wheel or flex plate to turn it when trying to start the engine

25
Q

What keeps the starter turning?

A

Magnets.

26
Q

What is a solenoid?

A

a big electro magnet

27
Q

How many wires are on the starter?

A

Three. Battery,key, and ground to itself.

28
Q

Where is the starter solenoid located?

A

On top of the starter

29
Q

When testing a starter under the no crank condition make sure of what two things?

A

No sound comes from the starter, and the battery is at 75%.

30
Q

What would cause a slow crank no start condition?

A

The Starter isn’t getting enough power

31
Q

How do you test a starter?

A

you connect one test lead of the multimeter to the ground side of the batt and the other to the power cable on the starter coming from the battery.

32
Q

What are the major parts of an alternator?

A

Rotor, Stator, rectifier bridge.

33
Q

What is rectification

A

Turns ac into dc

34
Q

What is a diode?

A

A one-way valve (electricity can only flow one way when a diode is there)

35
Q

What is a normal charging system voltage

A

13.5 v - 15v

36
Q

What is a sense wire in reference to an alternator?

A

It tells the alternator when to push more volts into the battery.

37
Q

With what do you test the charging system? How do you test it?

A

connect the VAT 40 to the positive and negative on the battery then connect the inductor wire to the power wire that goes back to the battery.

38
Q

Can you volt-test the alternator? If you can how many volts are you allowed to lose?

A

You can. you are allowed to lose anything under 0.05 volts.

39
Q

What to what must be connected when testing voltage drop?

A

Positive to positive or negative to negative.

40
Q

How do you know if the alternator is undercharging?

A

It must read within 10% of the alternator rating.

41
Q

Engine off key on, engine on key on, or key off when voltage testing an alternator

A

The engine on key on

42
Q

What is full fielding?

A

Putting a load on the alternator to see if it can handle it.

Automotive (1 decks)

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