AURTTJ011 Balance Wheels and Tyres: Written Assessment and Safety Precautions

This written assessment covers the knowledge of balancing wheels and tyres, including safety precautions, pre-balance checks, and types of wheel balancers used in automotive workplaces. The assessment includes 31 questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions. The assessment must be conducted in a safe environment and assessed in compliance with relevant policies, procedures, processes and operational manuals directly related to the industry sector for which it is being assessed.

AURTTJ011 Balance wheels and tyres
Student Assessment Agreement
Make sure you read through the assessments in this booklet before you fill out and sign the agreement below.
If there is anything that you are unsure of, consult your assessor prior to signing this agreement.
Have you read the assessment requirements for this unit?  Yes  No
Do you understand the requirements of the assessments for this unit?  Yes  No
Do you agree to the way in which you are being assessed?  Yes  No
Do you have any specific needs that should be considered?  Yes  No
If so, explain these in the space below.
Do you understand your rights to re-assessment?  Yes  No
Do you understand your right to appeal the decisions made in an assessment?  Yes  No
Qualification Code and
Title AUR30616: Certificate III in Light Vehicle Mechanical Technology
Unit Code and Title AURTTJ011 Balance wheels and tyres
Assessment Task Cover Sheet
Student Declaration
To be filled out and submitted with assessment responses
 I declare that this task is all my own work and I have not cheated or plagiarised the work or colluded with any
other student(s).
 I understand that if I If I am found to have plagiarised, cheated or colluded, action will be taken against me
according to the process explained to me.
 I have correctly referenced all resources and reference texts throughout these assessment tasks.

AURTTJ011 Balance wheels and tyres
Student name
Student ID number
Student signature
Date
Assessor declaration
 I hereby certify that this student has been assessed by me and that the assessment has been carried out
according to the required assessment procedures.
Assessor name
Assessor signature
Date
Assessment outcome S NS DNS Resubmission Y N
Feedback
Student result response
 My performance in this assessment task has been discussed and explained to me.
 I would like to appeal this assessment decision.
Student signature
Date
A copy of this page must be supplied to the office and kept in the student’s file with the evidence
Assessment 1 – Questioning – Written Assessment

AURTTJ011 Balance wheels and tyres
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 Procedure on 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 balancing wheels
and tyres.
The topics that will be covered in the assessment are:
1. Prepare to balance wheels and tyres
2. Conduct wheels and tyres pre-balance inspection
3. Carry out balancing procedures

AURTTJ011 Balance wheels and tyres
4. 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 31 questions comprising
of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowed On average, the Assessment should take 2 – 4 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: -
 Key policies and procedures for balancing wheels and tyres, including:
o How to locate and interpret manufacturers specifications or equivalent
information and workplace procedures for balancing wheels and tyres
o The following workplace health and safety requirements and procedures
relating to balancing wheels and tyres:
 Lifting and supporting vehicles and wheels
 Working with balancing machines, including rotating components
and flying objects
o Environmental requirements relating to balancing wheels and tyres
o Procedures for pre-balance inspection of wheels and tyres
o Workplace housekeeping and documentation procedures
 Wheel balancing machinery, including:
o Off vehicle balancers
o On vehicle balancers
 Wheel balancing equipment and concepts, including:
o Tyre and wheel run-out
o Static and dynamic balance
 The following out of balance effects on wheels:
o Wheel hop or tramp
o Wheel shimmy
o Vibration
o Tread wear
o Types and applications of wheel weights.
Assessment
conditions
The assessment MUST:
 Include access to:
o An automotive repair workplace or simulated workplace that reflects
workplace conditions - where simulation is used, it MUST reflect real
working conditions by modelling industry operating conditions and
contingencies, as well as, using suitable facilities, equipment and resources
o Repair orders and workplace instructions relating to balancing wheels and

AURTTJ011 Balance wheels and tyres
tyres activity
o Workplace procedures relating to balancing wheels and tyres activity
o Manufacturer wheel balancing specifications or equivalent documentation
o Four [4] different wheels and tyres for balancing
o Wheel balancing machinery
o Two [2] different vehicles or machinery requiring wheel/tyre balancing
o Tools, equipment and materials appropriate for balancing wheels and tyres
 Be demonstrated in the workplace or in a simulated environment that reflects
workplace conditions
 Be conducted in a safe environment
 Be assessed in compliance with relevant policies, procedures, processes and
operational manuals directly related to the industry sector for which it is being
assessed
 Confirm consistent performance can be applied in a range of relevant workplace
circumstances.
Assessor
Requirements
Assessors of this unit MUST:
 Satisfy the assessor requirements in applicable vocational education and training
legislation, frameworks and/or standards
Resources required Learning Resources available to students include:
 Automotive Technology (A System Approach) 6th Edition – Chapters 5, 6, 7, & 45
 Websites –
 https://en.wikipedia.org/wiki/Tire_balance
 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 incorrect
 Feedback will be provided on either result
 Where 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 document
 Where 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.

AURTTJ011 Balance wheels and tyres
Assessment 1 – Questioning
Written Assessment
1. Identify five (5) important items of personal safety when balancing wheels and tyres?
1 Durable clothing
2 Ear protection
3 Safety glasses
4 Steel toed shoes
5 Wearing mechanics gloves
2. List three (3) precautions when jacking a vehicle on the floor.
1 Utilizing the jack only to obtain vehicle off the ground and never holding it in place.
2 Placing jack under the part of vehicle that it should contact when raised, in case of jack stands place
them near jack.
3 Jacking should be done only after blocking the wheels to keep it from rolling.
3. Why should safety stands be placed under a raised vehicle?
Utilizing safety stands can assist in providing stability to the vehicle when it in raised position. It keeps a vehicle
propped up after having sued a floor jack like a hydraulic jack to lift a vehicle.
4. What five (5) precautions should be observed if a vehicle is to be raised on a hoist?
1 Do not rely on a single lift arm to bear all the weight of vehicle.
2 Keeping your hoist in top working order
3 Reading manual of owner before you start proceeding
4 Having proper concern that it is not lifted upper than the maximum limit of lifting.
5 Before working checking a particular lifting points of the vehicle.
Multiple choice. Circle the correct answer
5. When lifting heavy objects, you should?
A. Twist at the waist to change direction.

AURTTJ011 Balance wheels and tyres
B. Turns his whole body using his feet.
C. Both A and B.
D. Neither A nor B.
6. What seven (7) steps should you follow to prevent an injury when lifting heavy objects?
1 Bend at the knees
2 Pay larger concentration
3 In order to prevent from injuries via incorrect techniques required to maintain a strong form of lifting.
4 Stop and have though about lifting
5 Be aware of balance for having stability
6 Achieve the proper hold on the heavy object
7 Do not overload yourself
7. At what height should heavy objects be stored?
Heavy objects should be placed on the shelves between shoulder and mid thigh height ideally at at height. In
order t o decline the risk of breakage avoiding glass container on the ground where possible. Heavy items
stored above shoulder can lead to incline of risk where developing musculoskeletal.
8. Indicate some of the precautions that are needed when using a wheel balancer?
 Body positioning
 Determining the wheel closely
 Match tires to rim correctly
 Use a protective equipment
 Never forcing the issues when mounting
 Do not loosen beads before the tire has been fully deflated and remove to hood on wheel balancer. .
9. What pre-balance checks should be made to wheels prior to carrying out a wheel balance?
In order to pre balance check it can be concentrically seated by determining the distance the molded rim flange.
In prior stage the tire must be deflated and reseated in the distance is higher.

AURTTJ011 Balance wheels and tyres
10. What pre-balance checks should be made to tyres prior to carrying out a wheel balance?
In the case of tyres it can be assured that it must be concentrically seated prior to carrying out it in balancing
positioning. Dynamic balance is more sophisticated and accurate compared to static balance.
11. Name the two (2) types of wheel balancers used today in automotive workplaces and indicate briefly how
each type operates?
There are two types of tire balancer sued in used today in automotive workplace includes static and dynamic
balance. These both the methods are completely distinct from each other as the operates distinctly.
Static balance is carried out using one of the set of wheel eights mounted in the centers of wheel. It is
balancing refers to the balance point of an object around its axis of rotations.
Dynamic balancing on the other hand utilizes two sets of weights. It is the method through which balance is
conducted by moving parts of a machine. It has the ability of an object to balance whilst in motion when
switching between position.
12. Why do wheels and tyres need to be balanced?
Balancing is important as wheels & tyres with over the time losses their balances which makes essential to give
emphasis on factors concerning balance of wheel. In order to ensure that these acn properly work it becomes
important to give focus on road condition, weight distribution of vehicle, uneven tread wear, etc are properly
managed.
Multiple choice. Circle the correct answer
13. A tyre-and-wheel assembly that is out-of-round is said to have?
A. Radial runout.
B. Lateral runout.

AURTTJ011 Balance wheels and tyres
C. Excessive runout.
D. General runout.
14. How can tyre and wheel runout be checked?
It can be checked by using roller wheel placed against the tire traded combined with gauge bar. If there is
individual low and high spot sliders and magnified measurement readout that quickly shows the run out
present. With help of these actions the tyre and wheel run out can be checked.
Multiple choice. Circle the correct answer
15. What is the maximum lateral tyre runout?
A. 1mm.
B. 2mm.
C. 3mm.
D. 4mm.
16. What is meant by static balance?
Static balance occurs when centre of gravity of an object is on the axis of rotations. This is balancing of forces
due to action of gravity.
17. Explain static wheel imbalance and describe the results of static imbalance?
It is the condition where its principle axe is displaced parallel to its rotational axis. Its definition refers to
imbalance of the object to its balance and result can be heavy stop will tend to wards the bottom.
18. What is meant by dynamic balance?
Dynamic balance is ability of an object to balance while in motion or switching between position. It is the
proper way to balance out machines by rotating parts which are measured quickly and then measuring
imbalance using electronic equipment. It is basically a rotating mass is said to be dynamically balanced when
it does not vibrate in its running state.

AURTTJ011 Balance wheels and tyres
Multiple choice. Circle the correct answer
19. Dynamic wheel unbalance may result in?
A. Increased steering effort.
B. Normal tyre tread life.
C. Lateral wheel shimmy.
D. Tyre and wheel tramp.
20. What are some of the effects of a wheel that is out of balance?
Th some effects of wheel can be poor fuel economy, uneven & faster tread wear, vibration in steering wheel,
stress on shocks, bearings, increased cost of the fuel , etc.
Multiple choice. Circle the correct answer
21. A tyre that wobbles from side to side is said to have.
A. Radial runout.
B. Lateral runout.
C. Eccentric runout.
D. None of these answers are correct.
22. Name the different types of wheel weights below.
Adhesive wheel weights

AURTTJ011 Balance wheels and tyres
Zinc wheel weights
Leads wheel weights
23. How are wheel weights fitted?
Wheel assemblies are checked on spin balancer that contribute in assessing the angle and the amount of of
unbalances. Balance weights are then fitted to the inner & outer flanges of wheel.
24. Work out the following wheel weight sizes from metric to imperial.
5 grams: 0.1765
10 grams: 0.353
15 grams: 0.5295
20 grams: 0.70
45 grams: 1.5885
60 grams: 2.118
Multiple choice. Circle the correct answer
25. Looking at the wheel balancer machine display below, how much wheel weight is required for this wheel?
A. 0 grams.
B. 0.98 grams.
C. 0.60 grams.
D. 15.0 grams.

AURTTJ011 Balance wheels and tyres
26. Indicate the sequence for tightening wheel nuts?
It can be done by following the sequence step such as first tighten the top one, next bottom one, third the left
and in last right and so forth. These mentioned course of action can help in tightening wheel nuts.
Multiple choice. Circle the correct answer
27. Which source of information will give you the most detail about wheels and tyres on the vehicle you are
working on?
A. Workshop manual.
B. Owner’s manual.
C. Google.
D. Textbooks.
True or False question
28. Wear indicator bars on tyre appear as ½ inch wide bands when the tyre tread depth wears to 1/16 inch
[1.58mm].
☐ True or ☐ False
29. Why is it very important that the Job Card is completed correctly?
It is important that the job card is completed correctly as it ensures that technician working on the technician
working vehicle which ensures that every job is completed professionally and vehicles receives the technicians
whole application and concentration.
True or False question
30. The floor of your work area and bench tops should be kept clean, dry and orderly.
☐ True or ☐ False
Multiple choice. Circle the correct answer
31. When balancing wheels and tyres, what parts can be recycled?
A. Tyre.
B. Steel wheels.
C. Wheel weights.

AURTTJ011 Balance wheels and tyres
D. All these answers are correct.