AURETR112 Test and repair basic electrical circuits

AURETR112 Test and repair basic electrical circuits :

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 Link)							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 Link)							Yes / No
I have access to all required resources?							Yes / No
Cheating & Plagiarism Declaration
Student Declaration: In accordance with The RTO 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______

Assessment Results	Satisfactory			or	Not 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 Signature		Date	Assessor Signature			Date

Student Guide for Written Knowledge Assessment
Overview of Assessment	This is a written assessment task you will be assess on your knowledge of testing and repairing basic electrical circuits. The topics that will be covered in the assessment are: Prepare to test basic electrical circuit Test circuit Repair and check circuit 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 assessed	To complete this written assessment, you will need to answer the 70 questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowed	On average, the Assessment should take 4 – 6 hours to complete.
Location	This theory assessment will be completed in a classroom under the supervision of a trainer/assessor.
Decision making rules	To 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: – Methods to locate and interpret information required to test and repair basic electrical circuits, including:Technical information, including:Circuit typesCircuit diagrams Circuit symbolsManufacturer specifications and procedures or equivalent documentationWorkplace procedures required to test and repair basic electrical circuits, including:Establishing serviceability of tools and equipmentDocumentation proceduresHousekeeping procedures, including:Examination of tools and equipmentStorage of equipmentIdentification, tagging and isolation of faulty equipmentDisposal of excess materialsRecycling proceduresWorkplace health and safety (WHS) requirements relating to testing and repairing basic electrical circuits, including procedures for:Using specialised tools and equipmentSelecting and using personal protective equipment (PPE)Identifying hazards and controlling risks associated with wearing jewellery while working around electrical systemsEnvironmental procedures relating to testing and repairing basic electrical circuitsBasic theory and principles of automotive electrical systems, including:CurrentAlternating current (AC)Direct current (DC)VoltageResistance PowerOhm’s lawIdentification and operation of the following electrical circuits: Series circuitsParallel circuitsSeries parallel circuitsKey features of basic electrical circuit components, including:Cable types, including:Cable sizes Current carrying capacityCircuit protection devicesSwitchesRelaysAutomotive globesProcedures for using and operating electrical test equipment, including:Digital multimetersTest lights suitable for circuit testing, including resistive and light emitting diode (LED)Test probes suitable for testing circuit continuityFused test leadCommon types of faults, including:Open circuitsHigh resistance circuitsShort circuitsDamaged insulationFrayed wiresBurnt wiringWater and moisture ingressConnector damageTerminal damageTesting procedures for electrical systems, including:Accessing electrical terminals and using test probes without damaging connectors, fuse holders or wiringElectrical measuring and testing procedures, including:Electrical resistance checksOpen and short circuit testsVoltage drop testsCurrent flow testsVisual testing procedures, including:Component moisture ingressConnector damageRepair procedures for electrical circuits, including:Wire soldering proceduresTerminal crimping proceduresReplacing male and female terminals in a connector housingConnector removal and replacement proceduresBasic electrical components removal and replacement proceduresPost-repair testing procedures, including:Confirming that electrical system is operating to manufacturer specifications Confirming that no other problems are present as a result of the repair
Assessment conditions	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 basic electrical circuits they have tested and repaired, 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 workplaceWorkplace instructionsManufacturer electrical system specificationsVehicle or machinery with faults in the basic electrical circuits specified in the performance evidenceElectrical test equipment to test basic electrical circuits and componentsConsumable materials relevant to repairing basic electrical circuits and components, including connectors, terminals, wire, electrical tape and heat shrink sleevingElectrical repair tools, equipment and materials relating to basic electrical circuits and components. Assessors of this unit MUST satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards.
Resources required	Learning Resources available to students include: Automotive Technology (A System Approach) 7th Edition – Chapters 2, 5, 6, 7, 15, 16 & 20Websites – Ohm’s law calculator http://www.sengpielaudio.com/calculator-ohmslaw.htm Fluke 87 Multimeter http://media.fluke.com/documents/80v_____umeng0200.pdf Trainer Handouts
Results/Re-assessment	The 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 Adjustment	If the participant is unable to undertake the written assessment as designed, an interview (verbal questioning) may be used as an alternate approach.

Assessment 1 – Questioning

Written Assessment

1. 1.      What five [5] important items of personal safety equipment (PPE) are worn when testing and repairing electrical circuits?

Fill in the missing words

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

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

The _____metals__________ in most jewellery conducts_____electricity__________ very well and can easily cause a ______short_________, through your ________body _______ if this jewellery touches a ______bare_________ wire.

True False question. Select the correct answer

• You should NEVER connect a ‘self-powered’ test-lights to a circuit that is powered.

True

or

False

True False question. Select the correct answer

• The leads of an ammeter should NEVER be placed the across the battery or a load.

True

or

False

Multiple Choice question. Select the correct answer.

• The electrical principles of ‘Voltage’ is?

1. It is an electrical pressure measured as volts.
2. It is the electromotive force (EMF).
3. It causes the movement of the electrons within a wire/conductor.
4. All the above are correct.

• Describe electrical principles of ‘Current’?

True False question. Select the correct answer

• The key principle of ‘Resistance’ within an electrical circuit is that: resistance is the opposition to current flow. 

True

or

False

Multiple Choice question. Select the correct answer.

• The electrical principles of ‘Power’ is?

1. Power is the rate of doing electrical work and is expressed in watts.
2. A watt is equal to 1 volt multiplied by 1 amp.
3. Power is equal to the voltage time the amperes in an electrical circuit.
4. All the above are correct.

• What is a series circuit?

.

1. What is a parallel circuit?

1. What is a series parallel circuit?

1. Describe the difference between alternating and direct current.

Fill in the missing words

1. 13.   Define Ohm’s law?

Place the missing words to complete the following Ohm’s law statements.

Missing Words: current, electricity, known, resistance, Ohm’s, triangle, formula, relationship and found.

Ohm’s law defines the _______relationship ________ between current, voltage, and resistance.

Ohm’s law is the basic law of ________electricity_______.

It states that the amount of ________current_______ in an electric circuit is inversely proportional to the ______resistance_________ of the circuit and it is directly proportional to the ______Voltage_________ in the circuit.

Ohm’s law is a mathematical _______formula________ that shows how current, voltage and resistance work together to produce electricity.

If any two electrical values are _________known______, the third can be _________found______.

The mathematical formula for Ohm’s law is expressed in a ______triangle_________.

Fill out the following table with the correct information.

1. Outline the formula used to calculate each of the following electrical units

Fill out the following table with the correct answers.

1. Using Ohm’s law, work out the following basic formulas.

V = 2 Amps × 6 Ohms
I = 12V ÷ 6R
R = 12V ÷ 4I

In a clean, well-wired circuit, the fog lights will draw 2 amperes of current (below). What would happen if resistance in the circuit increases due to corroded or damaged wires or connections? If bad connections add 2 ohms of resistance to the circuit, the total resistance is? Using Ohm’s law, calculate with this total resistance what the current “I” would now be?
	I =   =

True False question. Select the correct answer

1. Stranded wire has more resistance than a solid copper wire and stranded wires are less flexible.

True

or

False

True False question. Select the correct answer

1. Wire size is determined by the diameter of the conductor.

True

or

False

True False question. Select the correct answer

1. In the AWG standard, the relationship between wire diameter and AWG wire size, states that the higher the AWG number means that the diameter of the wire conductor measured is larger.

True

or

False

Multiple Choice question. Select the correct answer.

• There are the major factors that determine the proper size of wire to be used.

1. Wire has a large enough diameter to carry the necessary current for the load components in the circuit.
2. The wire must be able to withstand any vibration within the vehicles electrical circuit.
3. The wire must be able to withstand the anticipated amount of heat exposure with the vehicle wiring.
4. All the above are correct.

• In most wiring colour codes, what do the first and second group of letters on the wiring diagram?

• What is the purpose of a circuit protection device?

Drop and Drag

• 23.   Name the different types of vehicle fuses in the table below?

Words: Blade, Ceramic, “F” type glass, Cartage, Maxi, Mini

(A)	(B)	(C)	(D)	(E)	(F)

True False question. Select the correct answer

• A switch controls the on/off operation of a circuit and it directs the current flow?

True

or

False

• In a single-pole, single-throw switch, what does the ‘pole’ and ‘throw’ refer to?

True False question. Select the correct answer

• A relay is an electrical switch that allows a small amount of current to control a high-current circuit.

True

or

False

• What is a relay?

• Why is a relay used in a circuit?

Drop and Drag

• Name the following automotive globes in the table below.

Words: Double filament, Festoon, HID, Instrument panel, LED, number plate, Quartz halogen, Single filament, Wedge or capless

• Name the three [3] main parts of the incandescent lamp below.

True False question. Select the correct answer

• The purpose of the Component Locator (Configuration Diagrams) is to provide help to find where an electrical component, harness and connectors are installed within the vehicle.

True

or

False

Drop and drag

• Name the following electrical symbols that you would find in a wiring diagram in the table below.

Words: Battery, Bulb, Capacitor, Circuit breaker, Coil winding, Coil with steel laminations, Connector, Diode, Dual-filament bulb, Female terminal, Fuse, Ground, Light emitting diode, Male terminal, Motor, Negative, Positive, Resistor, Splice, Variable resistor, Variable resistor potentiometer, Wires not electronically connected, Zener diode

Drop and drag

• Identify the following electrical components in the wiring diagram below.

Words: Fuse, Lamps, Switch & Grounds

• A standard or basic Digital Multimeter can measure what electrical vehicle systems.

• On the Digital Multimeter name each part in the table below.

12345678910    11   12 1314 1516171819202122

True False question. Select the correct answer

• When checking for voltage in an electrical circuit the digital multimeter must be connected in parallel to the circuit or component being measured.

True

or

False

True False question. Select the correct answer

• A digital multimeter displaying a ‘Zero Ohms’ mean there is no resistance between the test leads, this indicating continuity or a continuous path for the current to flow in a closed circuit.

True

or

False

True False question. Select the correct answer

• High-impedance test-lights are safe to use on computer circuits as do not affect the circuit current in the same way as conventional 12-volt test-lights when connected to a computer circuit

True

or

False

True False question. Select the correct answer

• A continuity test-light is like a normal test light but includes a battery for self-power and it illuminates whenever it is connected to both ends of a wire that has an open circuit or is broken.

True

or

False

True False question. Select the correct answer

• It is always recommended that a fuse be installed to test leads or jumper wire when testing an automotive circuit as the ammeter lead position results in zero ohms of resistance to current flow through the meter. The meter or the fuse inside the meter will be destroyed if the meter is connected to a battery.

True

or

False

Multiple Choice question. Select the correct answer.

• If the wiring insulation were damaged, frayed or burnt, what kind of fault could this cause?

1. Broken causing an open circuit.
2. Frayed wiring causing an intermittent fault.
3. Damaged insulation that exposes live wires causing possible short circuits.
4. All the above are correct.

• Describe each of the following common circuit faults:

Open:

Short:

Grounds:

Excessive resistance:

• What faults should you visually inspect for on wiring and connectors?

Wires:

Connectors:

Multiple Choice question. Select the correct answer.

• Testing electrical circuits requires the technician to use backprobing tools to probe a connector to allow a test lead to make contact a terminal inside the connector. This technique may cause the following to occur: 

1. Use of backprobing tools may cause damage to the connector and its seals.
2. Attempting to force a backprobe tool or meter lead into a female terminal can damage the terminal and expand its opening.
3. Can create an open or intermittent connection once the male and female connectors are both reattached.
4. All the above are correct.

• Describe the ways to carry out a ‘voltage test’.

• Describe the ways to carry out a ‘current flow test’.

True False question. Select the correct answer

• When soldering electrical wire together you must first wrap the two wires together, then place the tip of the soldering iron underneath the wires. When the wires become hot enough, melt the resin-core solder onto the top of the wires. Remove the soldering iron and let the solder cool down.

True

or

False

• What is heat shrink and why is heat shrink used to cover electrical wiring repairs?

• Explain how a crimpled connection is made, or a crimp terminal attached?

• When replacing basic electrical components such as headlight bulb, what care is needed?

True False question. Select the correct answer

• It is important to correctly fit the rear rubber cap of headlight bulb after its been replaced as it needs to be sealed to stop entry of dirt and water as this can damage the bulb and headlight reflector.

True

or

False

True False question. Select the correct answer

• You should never assume that your work solved the original problem. You must ensure the fault reported has been rectified and no other problems are present because of your repairs before returning the vehicle to the customer.

True

or

False

• According to the SDS for CIGWELD Comweld 965 Soldering Flux, what container should NOT be used to trap and store this flux during soft soldering activities?

Multiple Choice question. Select the correct answer.

62. Which source of information will give you the most detail about testing and repairing electrical circuits on the vehicle you are working on?

1. Workshop manual.
2. Owner’s manual.
3. Google.
4. Textbooks.

63. Why is it very important that the Job Card is completed correctly?

True and False

64. An automotive technician must adhere to workshop safety guidelines and procedures when using all tools and equipment.

True

or

False

True and False

• An automotive technician is required to document the work that was performed on a vehicle. Writing or typing in the description of the steps performed during the testing and repair of the vehicle should be worded as if the technician is talking to the customer.

True

or

False

True and False

66. Inspect your tools for cracks, broken parts, or other dangerous conditions before you use them. Never use broken or damaged tools.

True

or

False

True and False

• For best results and long tool life, each tool used must be cleaned and checked before placing it back into the toolbox.

True

or

False

Multiple Choice question. Select the correct answer.

68. Lockout/tagout practices and procedures are intended to reduce the risk of automotive technicians’ inadvertently using tools, equipment or materials that have been determined to?

1. Be unsafe or potentially unsafe.
2. That are in the process of being serviced.
3. Both “Be unsafe or potentially unsafe” and “That are in the process of being serviced”.
4. Neither “Be unsafe or potentially unsafe” and “That are in the process of being serviced”.

True and False

69. Most electrical system components such as wiring, and terminals can be recycled.

True

or

False

AURETR112 Test and repair basic electrical circuits

True and False

70. Electrical components such as blubs can be reused on other vehicles as long as they meet that vehicle specifications?

True

or

False

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