Auto Motive

AURETR032 Diagnose and repair automotive electrical systems

18 June 2023 08:55 AM | UPDATED 11 months ago

AURETR032 Diagnose and repair automotive electrical systems :

AURETR032 Diagnose and repair automotive electrical systems
AURETR032 Diagnose and repair automotive electrical systems
Assessment 1 – Questioning – Written Assessment
Student Name Student ID Number 
Unit Start Date Unit End Date 
Assessment Due Date Date Submitted 
This cover sheet is to be completed by the student and assessor and used as a record to determine student competency in this assessment task
The assessment process and tasks were fully explained.Yes / No
I am aware of which evidence will be collected and how.Yes / No
I am aware of my right to appeal an assessment decision.Yes / No
I am aware that I can locate the RTO Complaints and Appeals Policy and Procedureon their website at (insert website address)Yes / No
I have discussed any additional educational support or reasonable adjustments I require in order to undertake this assessment with the Student Support Services Officer and Trainer / Assessor, (if applicable). e.g. Student Handbook and Access and Equity Policy (insert website address)Yes / No
I have access to all required resources?Yes / No
Cheating & Plagiarism Declaration
Student Declaration: In accordance with the RTO’s Plagiarism Policy, I hereby acknowledge by signing this declaration that I have not cheated or plagiarised any work regarding the assessment tasks undertaken in this unit of competency except where the work has been correctly acknowledged. NOTE: Student must sign this prior to submitting their assessments to the assessor
Signature Date:______ / ______ / 20______
AURETR032 Diagnosing and repair automotive electrical systems

Assessment ResultsSatisfactoryorNot Yet Satisfactory
(Please circle the assessment result for this task)
Feedback to Student – Please provide general feedback on the Student’s performance
 
 
Student Declaration: – I verify that the work completed is my own and that I was adequately informed of the assessment process prior to commencing this assessment task.Assessor Declaration: – I verify that I have adequately explained and negotiated the assessment tasks with the student prior to commencing assessment.
Student Name:Assessor’s Name:
Student SignatureDateAssessor SignatureDate
AURETR032 Diagnosing and repair automotive electrical systems

Student Guide for Written Knowledge Assessment
Overview of AssessmentThis is a written assessment task you will be assess on your knowledge of diagnosing and repairing automotive electrical systems. The topics that will be covered in the assessment are: Prepare to diagnose and repair electrical systems Diagnose electrical system Repair electrical system Complete work processes This assessment will ensure that the elements, performance criteria, performance evidence and knowledge evidence required, and conditions are adhered to demonstrate competency in this unit assessment task. Read the assessment carefully before commencing.Your Assessor will use the assessment criteria in this document and will provide feedback / comment. You MUST answer all the questions in the assessment tasks in your own words and own handwriting. This is an “Open Book” assessment, and students can use the resources listed in the “Resources Required” section below.
Task/s to be assessedTo complete this written assessment, you will need to answer the 96 questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowedOn average, the Assessment should take 4 – 6 hours to complete.
LocationThis theory assessment will be completed in a classroom under the supervision of a trainer/assessor.
Decision making rulesTo receive a ‘satisfactory’ outcome for this assessment students MUST successfully answer all questions. If a student achieves less than 100%, they can reattempt the assessment after further study has taken place. Students who cannot achieve a minimum of 100% you will not have satisfactorily completed this assessment Your assessor will be looking for the following in this assessment task: – Work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing automotive electrical systems, including procedures for:Using specialised tools and equipmentUsing appropriate personal protective equipment (PPE)Identifying hazards and controlling risks associated with:Working on high voltage ignition systemsWearing jewellery while working around high current wiring systemsOperating principles of automotive electrical systems and associated components, including:Current, voltage, resistance and powerSeries circuitsParallel circuitsSeries and parallel circuitsOhm’s lawFaraday’s lawKirchhoff’s lawMagnetism and direct current (DC) motor operationElectromagnetic interference and radiationCable types and sizes and current carrying capacityCircuit protection devicesApplication, purpose and operation of automotive electrical systems and components, including:Wiper motorsElectric windowsElectric door locksFan motorsHornsLightingRadio aerialsDiagnostic testing procedures for automotive electrical systems, including:Visual, aural and functional assessments of electrical system components, including:Component damage and wearComponent or connector corrosionComponent water or moisture ingressCommon faults in electrical circuits, including:Open circuitsHigh resistance circuitsShort circuitsDamaged insulationFrayed wiresBurnt wiringWater and moisture ingressConnector damageTerminal damageUsing diagnostic flow chartsTesting electrical systems, including procedures for:Accessing electrical terminals and using test probes without damaging connectors, fuse holders or wiringChecking resistance, current flow and voltage drop of system circuitsProcedures for using:Digital multimetersTest lights and probesOscilloscopesRepair procedures for automotive electrical systems, including:Selecting and soldering wiresSelecting and crimping terminalsRemoving and replacing connectorsRemoving and replacing electrical systems and their componentsPost-repair testing procedures for automotive electrical systems, including:Checking for electrical connector matingChecking circuit current flowStatic and dynamic performance tests of automotive electrical systems.
Assessment conditionsAssessors MUST satisfy NVR/AQTF assessor requirements.  Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.  Assessment MUST include direct observation of tasks.  Where assessment of competency includes third-party evidence, individuals MUST provide evidence that links them to the automotive electrical systems that they have worked on, e.g. repair orders.  Assessors MUST verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.  The following resources MUST be made available:  Automotive repair workplace or simulated workplace Workplace instructionsManufacturer automotive electrical system specifications Three different vehicles or machinery with electrical system faultsDiagnostic equipment for electrical systems, including multimeterTools, equipment and materials appropriate for repairing automotive electrical systems, including:Automotive wiringHeat shrinkSoldering iron. 
Resources requiredLearning Resources available to students include: Automotive Technology (A System Approach) 7th Edition – Chapters 2, 5, 6, 7, 16, 20, 23 & 27Trainer Handouts
Results/Re-assessmentThe Assessor will grade the assessment and record the result on the front page of this document (S) – Satisfactory if all observable behaviours are correct and (NS) not satisfactory if any areas are left incorrectFeedback will be provided on either resultWhere a student receives a ‘NS – Not Satisfactory’ result, the assessor will discuss the area of the non-compliant observable behaviour and an opportunity given for re-assessment. This may be through direct observation or a different method of assessment e.g. verbal/oral questioning, problem solving exercise. If the outcome is again not satisfactory the student result will be deemed (NYC) not yet competent. Additional feedback will be given, and a time agreed upon for further assessment after additional training and skills practice has taken place, this information will be recorded, dated and signed in the re-assessment area on the last page of this documentWhere all the assessment tasks have been graded (S) Satisfactory, the student will be deemed C – Competent for the practical component and the result recorded and signed in the area indicated on the last page of this document
Reasonable AdjustmentIf the participant is unable to undertake the written assessment as designed, an interview (verbal questioning) may be used as an alternate approach.
AURETR032 Diagnosing and repair automotive electrical systems

Assessment 1 – Questioning
Written Assessment
AURETR032 Diagnosing and repair automotive electrical systems

  1. 1.      What four [4] important items of personal safety equipment (PPE) are worn when diagnosing and repairing automotive electrical systems?

True or False question. Select the correct answer

  • You should NEVER connect a ‘self-powered’ test-lights to an electrical circuit that is powered.
☐ Trueor☐ False
AURETR032 Diagnosing and repair automotive electrical systems

True or False question. Select the correct answer

  • The leads of an ammeter should NEVER be placed the across the battery or a electrical circuit load.
☐ Trueor☐ False

Multiple Choice question. Selected the correct answer.

  • Improper setup and use of the multimeters, meaning ________ can cause personal injury and damage to the meter.

Selecting the wrong mode.

Placing the leads into the wrong jacks.

Connecting the meter incorrectly to a circuit.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • There is a risk of scan tool and oscilloscope explosion when ________?

Exposed to rain, snow, or wet conditions.

Battery gases or acid contact tester housing.

Test leads are NOT connected as instructed before proceeding with a test.

All these answers are correct.

  • To prevent personal injury or damage to the vehicle, you should always take the necessary precautions before working on or around a vehicle’s electrical system. You should disconnect the battery before disconnecting any electrical wire or component. Why?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Fill in the missing words

  • Place the missing words to complete the statement about the reasons why rings, necklaces, bracelets, and watches should not be worn while working around vehicle ignition or electrical systems.

Missing Words: metal, short, bare, body electricity.

The _____________ in most jewellery conducts_____________ very well and can easily cause a ______________, through your _______________ if this jewellery touches a _____________ wire.

Multiple Choice question. Selected the correct answer.

  • The ignition system produces exceedingly high voltages, and these can be________?

Safe.

Dangerous.

Nothing, as I have safety shoes on.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • ________ can be defined as an electrical pressure and is the electromotive force (EMF) that causes the movement of the electrons in a conductor.

Voltage.

Current.

Resistance.

Power.

Multiple Choice question. Selected the correct answer.

  1. ________ is a measurement of the electrons passing any given point in the circuit in one second.

Voltage.

Current.

Resistance.

Power.

Multiple Choice question. Selected the correct answer.

  1. ________ is the opposition to Voltage flow.

Voltage.

Current.

Resistance.

Power.

Multiple Choice question. Selected the correct answer.

  1. ________ is the rate of doing electrical work. Power is expressed in watts. A watt is equal to 5 volt multiplied by 1 ampere.

Voltage.

Current.

Resistance.

Power.

True or False question

  1. A series circuit consists of one or more resistors (load) connected to a voltage source with only one path for electron flow.
☐ Trueor☐ False
AURETR032 Diagnosing and repair automotive electrical systems

  1. What is a parallel circuit?
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question. Selected the correct answer.

  1. What is a series parallel circuit?

Has one or more resistors (load) connected to a voltage source with only one path for electron flow.

Has two or more different paths for the current to flow through.

Has some loads that are in series with each other and some that are in parallel.

All these answers are correct.

Fill in the missing words

  1. Place the missing words to complete the statement about Ohm’s law.

Missing Words: circuit, current, law, voltage, work

Ohm’s law defines the relationship between current, _____________, and resistance. Ohm’s law is the basic law of electricity. It states that the amount of _____________ in an electric circuit is inversely proportional to the resistance of the circuit and it is directly proportional to the voltage in the _______________. Ohm’s law is a mathematical formula that shows how current, voltage and resistance ____________ together to produce electricity. If any two electrical values are known, the third can be found. The mathematical formula for Ohm’s _______________ is expressed in a triangle.

  1. Describe the principle of “Faraday’s Law”?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question. Selected the correct answer.

  1. Kirchhoff ’s “voltage law” basically states that.

The sum of the voltage drops in a closed circuit equals the voltage applied to that circuit.

Directly describes the behaviour of a series circuit.

Describes the characteristics of more complex circuits in which there are positive and negative voltages.

All these answers are correct.

True or False question

  1. Kirchhoff ’s “current law” explains the behaviour of current in a parallel circuit. This law can be safely stated as: “At any junction point in a circuit, the current arriving to that point is equal to the current leaving.”.
☐ Trueor☐ False
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question. Selected the correct answer.

  • Which of the following states that the sum of the voltage drops in a closed circuit equals the voltage applied to the circuit?

Ohm’s law.

Watt’s law.

Kirchhoff’s law.

Power law.

Multiple Choice question. Selected the correct answer.

  • Magnetism is produced by the controlled movement of ________. Magnetism is used to generate electricity in many automotive systems.

Ohm’s.

Electrons.

Resistance.

Power.

Multiple Choice question. Selected the correct answer.

  • In ________, the electrons flow in one direction only.

Direct current [DC].

Alternating current [AC].

Fixed rate current.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • Electromagnetic interference and radiation (EMI) can cause problems with the vehicle’s ________. EMI is produced when electromagnetic radio waves of sufficient amplitude escape from a wire or conductor.

Transmissions.

Engines.

Computers.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • When a circuit protection device (fuse, circuit breaker) ________ due to higher than normal current, a short is the likely cause.

Opens.

Closes.

Partly closed.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • Why are stranded copper wires used, instead of solid copper wire?

Stranded wire has more resistance for given diameter and they are more flexible.

Stranded wire has less resistance for given diameter and they are more flexible.

Both “Stranded wire has more resistance for given diameter and they are more flexible” and “Stranded wire has less resistance for given diameter and they are more flexible”.

Nether “Stranded wire has more resistance for given diameter and they are more flexible” and “Stranded wire has less resistance for given diameter and they are more flexible”.

  • How is wire size determined?
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question

  • In the AWG standard, what is the relationship between wire diameter and AWG size?

The higher the AWG number the smaller the diameter of the wire conductor.

The lower the AWG number the larger the diameter of the wire conductor.

Both “The higher the AWG number the smaller the diameter of the wire conductor” and “The lower the AWG number the larger the diameter of the wire conductor”.

Nether “The higher the AWG number the smaller the diameter of the wire conductor” and “The lower the AWG number the larger the diameter of the wire conductor”.

  • There are three [3] major factors that determine the proper size of wire to be used. What are they?

Multiple Choice question. Selected the correct answer.

  • The protection device is designed to ________ the system that it protects. This is done by creating an open to prevent a complete circuit.

Turn On.

Turn Off.

Power.

All these answers are correct.

  • Name the five [5] components of the wiper/washer assembly below.
Diagram, schematic

Description automatically generated   
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question. Selected the correct answer.

  • Intermittent wiper delay interval on late model vehicles is controlled by the ________.

TCM.

PCM.

BCM.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • After the wipers are turned off, the ______ switch provides power to the wiper motor until the wiper’s blades reach the bottom of the windshield.

Interval.

Rest.

Overrun.

Park.

Multiple Choice question. Selected the correct answer.

  • The speed of a two-speed electromagnetic field type wiper motor is controlled by ______.

A stepped resistor between the wiper switch and the motor power terminal.

Additional brushes that increase the strength of the magnetic field in the armature.

Series and shunt field windings that increase the strength of the magnetic field.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • What do the two-speed permanent magnet type wiper motors generally use to achieve the two speeds?

Cam.

Reduction gears.

Brushes.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • The Park switch for a windscreen wiper system is located ______.

On the driver’s side wiper arm.

Inside the wiper motor.

Inside the BCM.

Inside the wiper control relay.

  • Obviously, the purpose of any power window system is to?
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question. Selected the correct answer.

  • Power window systems use ______.

Electric motors.

Permanent magnet motors.

Reversible motors.

All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • The master control switch for a power window provides ______.

Electrical power for the window motor.

The ground for the window motor.

Both “Electrical power for the window motor” and “The ground for the window motor”.

Neither “Electrical power for the window motor” and “The ground for the window motor”.

True or False question

  • Typically, a permanent magnet motor operates each power window. Each motor raises or lowers the glass when voltage is applied to it. The direction the motor moves the glass is determined by the polarity of the supply voltage to the motor.
☐ Trueor☐ False
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question. Selected the correct answer.

  • Most driver and front passenger doors have a motor with its own module. Each of the modules is controlled by the ______.

PCM.

TCM.

BCM.

All these answers are incorrect.

Multiple Choice question. Selected the correct answer.

  • The actuators for power door locks are ______.

Solenoids.

Reversible DC electric motors.

Thermo-electric expansion capsules.

All these answers are incorrect.

  • Today, most power door lock systems place the motor in the door latch assembly and are controlled by the BCM. Why?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • Explain how the power door lock system operates?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems
  • Some vehicles have an Auto-lock or automatic door lock system. How does this system work?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • Name the five [5] components of the blower fan [heater fan] assembly below.
Diagram

Description automatically generated   
AURETR032 Diagnosing and repair automotive electrical systems

  • Explain the function of the of the blower fan [heater fan] in the vehicle?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • Explain how the blower fan [heater fan] multi-position switch direct electricity to power the fan?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Fill in the missing words

  • Place the missing words to complete the statement about how electrical horns in vehicles operate.

Missing Words: diaphragm, flex, horn, open, noise, static

When turned on, a diaphragm in the horn vibrates and emits a ______________. The diaphragm is a thin, flexible, circular plate mounted to an electromagnet. This _______________ is only solidly attached to the outside of the horn assembly. This mounting allows the centre of the diaphragm to ____________. The electromagnet is moved by the magnetic field set up in the field windings. The circuit to the field windings is ____________ when the electromagnet moves. After the electromagnet moves back to its _______________ position, current is again sent to the field winding. This process continues several times per second as long as the ______________ button is depressed.

  • Name the seven [7] components of the horn assembly below.
Diagram, schematic

Description automatically generated
  
  
  
  
 
AURETR032 Diagnosing and repair automotive electrical systems
  • The lighting system provides power to both exterior and interior lights. What does the exterior lights systems consist of? Name eight [8].
     
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question. Selected the correct answer.

  • The interior lighting system consist of______.

Courtesy lights.

Dome/map lights.

Instrument illumination or dash lights.

All these answers are incorrect.

Multiple Choice question. Selected the correct answer.

  • Which of the following are NOT usually controlled by the main light switch assembly?

Headlights.

Parking lights.

Taillights.

Reverse [Backup] light.

Multiple Choice question

  • The rear light assembly typically includes the ______.

Rear turn signals.

Taillights.

Brake lamps.

All the answers are correct.

Multiple Choice question

  • The stoplight switch is normally mounted on the ______.

Instrument panel.

Transmission.

Brake pedal arm.

All the answers are incorrect.

Multiple Choice question

  • Which of the following is NOT a basic type of headlight used in today’s vehicles?

Sealed beam.

Acetylene.

Composite.

High-intensity discharge.

Multiple Choice question

  • The multifunction switch is normally mounted on the ______.

Instrument panel.

Brake pedal arm.

Steering column.

All the answers are correct.

Multiple Choice question

  • The halogen element that is used in most halogen lightbulbs is ______.

Chlorine.

Fluorine.

Iodine.

Bromine.

Multiple Choice question

  • Which statement concerning HID headlights is NOT true?

The light beam made by HID headlights is brighter and more consistent than halogen-type headlights.

HID headlights are smaller and lighter than halogen headlights.

HID headlights run hotter than halogen headlights.

HID headlights use less electrical power than halogen headlights.

  • What are adaptive brake lights?
 
 
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • List three [3] common locations of courtesy lights.
  • Describe adaptive headlights.
 
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • Describe how daytime running light’s function.
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question

  • An antenna collects radio waves for both ________ stations. Radio stations’ broadcast towers transmit electromagnetic energy through the air and induce an AC voltage in the antenna. This AC signal is then converted, by the radio receiver unit, to an audio output.

AM.

FM.

UHF.

Both “AM” and “FM” are correct.

True or False question

  • All vehicles incorporate the antenna into the rear window defogger grid.
☐ Trueor☐ False
AURETR032 Diagnosing and repair automotive electrical systems

Multiple Choice question

  • When the radio is turned on, a ______ signal is sent to the defogger/antenna module?

5-volts.

6-volts.

12-volts.

24-volts.

True or False question

  • A coaxial cable from the module provides the radio with the radio waves.
☐ Trueor☐ False
AURETR032 Diagnose and repair automotive electrical systems

Fill in the missing words

  • Place the missing words to complete the statement about visually inspect wiring and connectors for the faults.

Missing Words: corroded, broken, damaged, moisture

Wires:

Loose or ______________ terminals, frayed, ______________ or oil-soaked wires.

Connectors:

Nearly all connectors have pushdown release-type locks. Make sure these are not _____________. Many connectors have covers over them to protect them from dirt and ______________. Make sure these are properly installed to provide for that protection.

Multiple Choice question

  • The best method for testing wires, electrical terminals and electrical connectors connections is ______.

Ohmmeter test.

Voltage drop test.

Inductive ammeter.

Infrared pyrometer.

Multiple Choice question

  • The most common cause of high resistance in electrical wiring and connectors is ______.

Flat battery.

Broken wire or connector.

Corrosion in the connector.

All these answers are correct.

  • What are the three [3] classifications of electrical problems?

Multiple Choice question

  • A ______ can find excessive resistance in a circuit that may not be detected using an ohmmeter.

Voltage drop test.

Current test.

Duty cycle test.

All these answers are correct.

Multiple Choice question

  • A technician is testing a connector in a circuit with a voltmeter. With the power on in the circuit, the meter reads 12 volts when the leads are placed on each side of the connector. This indicates that the connector _____.
  1. Is shorted to ground.
  2. Is open.
  3. Is good.
  4. Has current flowing through it.

Multiple Choice question

  • A technician is checking a circuit with excessive resistance. The current flow through the circuit should be 10 amps, but a check with an ammeter measures only 6 amps. The technician measures a voltage drop of 1.0 volts across the switch terminals when the circuit is turned on. What is the resistance of the switch?

1/60 ohms.

1/6 ohm.

6 ohms.

60 ohms.

Multiple Choice question

  • A technician is diagnosing the cause of an insufficient heat problem. He notices the fan is working but not providing much air flow. He disconnects the fan power feed wire and connects the fan to the battery using a fused jumper wire. The specification for the fan motor is 16 amps. His ammeter shows 26 amps when the fan is jumped directly to the battery. What could be the problem?

Bad fan motor ground.

High resistance in the fan motor wiring.

Shorted wiring in the fan motor.

All these answers are correct.

  • Explain how you would bench test a relay [the relay is removed from the vehicle].
 
 
 
 
AURETR032 Diagnose and repair automotive electrical systems

Multiple Choice question

  • To check a switch, disconnect the connector at the switch. Check for continuity between the terminals of the switch with the switch in the on and off positions. While in the off position, there should be ________ between the terminals. With the switch on, there should be good continuity between the terminals?

Continuity.

No continuity.

Partial continuity.

All these answers are correct.

Multiple Choice question

  • A wire’s insulation should be in good condition. ________ insulation can cause shorts. These conditions can also create a safety hazard.

Broken.

Frayed.

Damaged.

All these answers are correct.

True or False question

  • Check the wiring for signs of burned insulation and melted conductors. Low current due to the short will cause this.
☐ Trueor☐ False
AURETR032 Diagnose and repair automotive electrical systems

Multiple Choice question

  • Check all connectors for _____, and _____, and _____. Nearly all connectors have pushdown release-type locks. Make sure these are not damaged. Many connectors have covers over them to protect them from dirt and moisture. Make sure these are properly installed to provide for that protection.

Corrosion.

Dirt and moisture.

Looseness.

All these answers are correct.

Multiple Choice question

  • When working with connectors, _____ on the wires to separate the connectors. This can create an intermittent contact and an intermittent problem that can be very difficult to find later.

Never pull.

Always pull.

Use a screwdriver.

All these answers are correct.

Multiple Choice question

  • _____ diagnostic charts focus on a definition of the problem and offer a list of possible causes of the problem.

Flow chart.

Symptom-based.

Google.

All these answers are correct.

Multiple Choice question

  • Diagnostic aids include _____.

Decision trees.

Symptom-based diagnostics.

A combination of “Decision trees” and “Symptom-based diagnostics”.

All these answers are correct.

True or False question

  • A wiring diagram show the actual position of parts on a vehicle when diagnosing faults.
☐ Trueor☐ False
AURETR032 Diagnose and repair automotive electrical systems

Multiple Choice question

  • You should use _____ to trace the flow of current through all the switches, wires, connectors, circuit protection devices, and grounds related to the problem before he begins testing.

Electrical schematic diagram.

Component schematic diagram.

Mechanical schematic diagram.

All these answers are correct.

Multiple Choice question

  • Taking electrical measurements from the external wire terminal ends on the outside of a plugged-in electrical connector is called?

Front probing.

Side probing.

Back probing.

All these answers are correct.

Multiple Choice question

  • When using an inductive current probe adapter on a DMM, _____.

The DMM is set for DC amps.

The arrow on the clamp faces toward the battery [source voltage].

The thumb wheel on the probe is adjusted to zero on the DMM.

All these answers are correct.

Multiple Choice question

  • All types of circuit protection devices can be checked with an _____.

Ohmmeter (DMM).

Test light.

Both “Ohmmeter (DMM)” or “Test light”.

Neither “Ohmmeter (DMM)” or “Test light”.

Multiple Choice question

  • When setting up a lab scope (Oscilloscopes) to measure a waveform that ranges from 0 to 15 volts; if there are eight vertical divisions, what must the voltage level be set at to display the entire waveform?
  1. 100 millivolts.
  2. 500 millivolts.
  3. 1 volt.
  4. 2 volts.

Multiple Choice question

  • What is the best tool to use to find the cause of an intermittent problem in a low-voltage DC circuit?

Graphing multimeter [GMM].

Digital storage oscilloscope.

Digital voltmeter.

Test light.

  • What is the procedure for soldiering electrical wire together?
   
 
 
AURETR032 Diagnose and repair automotive electrical systems

  • Why should we use heat shrink on all wiring repairs?
.  
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • Explain how a crimpled connection is made, or a crimp terminal attached?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • How do you remove and replace the male and female terminals in a multipin connector?
 
 
 
 
AURETR032 Diagnose and repair automotive electrical systems

  • When replacing basic electrical components such as headlight bulb, what care is needed?
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • After the removing the door trim to replace the power window motor assembly. Referring to the Automotive Technology textbook, what are the five [5] steps to replace the power window motor assembly?
 
 
 
 
 
 
 
AURETR032 Diagnosing and repair automotive electrical systems

  • Why is it important to verify that the vehicle you have repaired is operating correctly?
 
 
 
AURETR032 Diagnose and repair automotive electrical systems

Visit:https://auspali.info/

Also visit:https://www.notesnepal.com/archives/767