NZ Certificate in Collision Repair (Level 4) Theory Assessment

Under New Zealand HSWA 2015, what must a collision repair PCBU provide before spray painting begins?

• AAdequate ventilation, respiratory protection where required, and documented safe-work pro…
• BOpen all workshop doors and rely on natural breeze only
• CSpray only when customers are present to witness safety controls
• DUse any dust mask regardless of filter rating for all paint products

When sanding existing paint in a New Zealand collision repair shop, what PPE combination is typically required at minimum?

• AP2 or P3 particulate respirator, eye protection, and hearing protection if noise exceeds…
• BCotton gloves only to protect hands from dust
• CNo PPE if the vehicle is outside the spray booth
• DSafety glasses alone because paint dust is non-toxic

How must waste solvent and contaminated rags be managed under New Zealand environmental and HSWA requirements?

• AStore in labelled closed containers, segregate from general waste, and dispose through li…
• BPour into the workshop floor drain after each job
• CBurn in an open drum to reduce landfill volume
• DMix with general rubbish for weekly council collection

Before welding on a vehicle with an undeployed SRS airbag system, what is the correct first step?

• ADisable the SRS per manufacturer procedure, wait the specified de-energisation time, and…
• BBegin welding immediately if the airbags did not deploy in the collision
• CRemove the steering wheel only and leave other modules connected
• DSpray water on airbag modules to prevent ignition

What is the primary purpose of a spray booth interlocked exhaust system in a collision repair facility?

• ATo maintain negative pressure and capture overspray, reducing worker and environmental ex…
• BTo heat the booth above 60 °C for faster flash-off only
• CTo allow painting without a respirator in all situations
• DTo recycle all solvent vapours back into the booth air supply untreated

A Level 4 collision repair technician notices an apprentice entering a booth while the gun is spraying. What is the correct action?

• AStop spraying, remove the apprentice from the booth, and reinforce booth entry and RPE pr…
• BContinue spraying because brief exposure is acceptable
• CAsk the apprentice to hold a torch for visibility inside the booth
• DTurn off extraction to reduce noise while explaining the hazard

When must a New Zealand collision repair workshop review its risk assessment for a new EV repair task?

• ABefore introducing HV battery handling, welding near high-voltage components, or modified…
• BOnly after a serious harm event is reported to WorkSafe
• CEvery ten years regardless of process changes
• DOnly when requested by an insurer in writing

What does an SDS (Safety Data Sheet) provide for a two-pack clearcoat used in refinishing?

• AHazard classification, PPE requirements, first aid, spill response, and storage guidance…
• BOnly the colour formula and mixing ratio
• CVehicle repair procedures and panel alignment tolerances
• DInsurance claim coding information

Why must oxy-acetylene cylinders be stored upright and secured in a New Zealand workshop?

• ATo prevent valve damage, leaks, and uncontrolled release of pressurised gas that could ca…
• BTo keep cylinder labels hidden from inspectors
• CBecause horizontal storage improves gas flow to the torch
• DTo allow cylinders to roll freely for quick relocation during welding

What is the correct response to a spill of mixed two-pack paint containing isocyanates on the workshop floor?

• AContain the spill, ventilate the area, use compatible absorbent, dispose as hazardous was…
• BMop into the stormwater drain with hot water
• CCover with sawdust and leave until the end of the week
• DAllow the spill to dry naturally without ventilation

Under NZ fire safety practice, where should freshly solvent-soaked rags be placed after use?

• AIn a closed metal rag disposal bin designed to prevent spontaneous combustion
• BIn a plastic open bin near the spray booth
• CStacked on the vehicle bonnet to air dry overnight
• DMixed with paper recycling at the end of shift

What is a PCBU's duty regarding worker consultation on health and safety in a collision repair business?

• AEngage workers in identifying hazards, selecting controls, and reviewing procedures that…
• BConsult workers only after WorkSafe issues an improvement notice
• CLimit consultation to management and insurer representatives
• DAvoid documenting worker feedback to reduce liability

What type of damage is best described as a shallow dent with intact paint on an outer body panel?

• AA crease-free shallow dent suitable for paintless dent repair (PDR) if access and panel g…
• BStructural frame damage requiring a bench pull
• CA stress crack in a cast aluminium suspension member
• DA shattered laminated windscreen impact point

When using a stud welder for dent pulling on a zinc-coated steel panel, what must be verified first?

• AManufacturer approval for the panel area, coating thickness, and that weld studs will not…
• BThat the panel is fully painted before stud welding
• CThat the stud welder is set to maximum amperage for all panels
• DThat all airbags remain connected for grounding

What is the purpose of "metal finishing" after initial panel straightening?

• ATo remove highs and lows with hand tools and sanding so filler thickness remains within m…
• BTo apply primer surfacer before any straightening is complete
• CTo stretch the panel beyond OEM dimensions for easier alignment
• DTo replace all straightened panels with aftermarket copies

Which hammer and dolly technique shrinks stretched metal in a shallow dent?

• AOff-dolly work: hammer strikes off the dolly to compress stretched areas
• BOn-dolly work: hammer and dolly contact simultaneously to move metal toward the hammer bl…
• CUsing a rubber mallet only on the outer surface without backing
• DHeating the panel red-hot before hammering without a plan

When is panel replacement preferred over repair for a damaged outer skin?

• AWhen damage exceeds OEM repair limits, heat-affected zone is extensive, or repeated strai…
• BWhenever any dent is deeper than 5 mm regardless of location
• COnly when the customer requests new parts for cosmetic preference alone
• DWhen the panel is plastic and has a minor scuff

What is the function of a slide hammer with various attachments in panel beating?

• ATo apply controlled pulling force on studs, hooks, or clamps for dent removal without dir…
• BTo measure panel gap uniformity around doors
• CTo mix two-pack filler components at correct ratio
• DTo calibrate ADAS radar sensors after bumper repair

Why should high-strength steel (HSS) outer panels be repaired with controlled heat only when OEM procedures allow?

• AExcessive heat alters metallurgy and can reduce crash energy management properties of HSS…
• BHSS panels cannot be welded under any circumstances
• CHeat always makes HSS panels softer and easier to hammer indefinitely
• DHSS panels must be replaced if touched by any hand tool

What is the correct sequence when repairing a creased door outer skin with access from the inner frame?

• ARelease the crease from the edges inward, align panel gaps, metal finish, then apply fill…
• BFill the crease with polyester filler before any metal movement
• CReplace the door shell without checking hinge alignment
• DApply basecoat colour before straightening to protect the panel

When fitting a new outer guard (fender), what should be checked before final bolt tightening?

• AGap and flush alignment to adjacent panels, headlamp fit, and hood closure clearance per…
• BOnly that all bolts are finger-tight with no alignment check
• CThat the guard is painted before any trial fit
• DThat the engine is running to check panel vibration

What adhesive bonding technique is commonly specified for certain bonnet (hood) and roof panel repairs on modern vehicles?

• APanel bonding with OEM-approved structural or semi-structural adhesives at specified bead…
• BSuperglue applied to painted surfaces without surface prep
• CSilicone sealant only, with no clamping during cure
• DDuct tape until primer is applied

When repairing plastic bumper covers, why is identifying the plastic type (PP, TPO, ABS) important?

• AAdhesion promoters, fillers, and welding rods must match the substrate for a durable repa…
• BAll plastics use the same polyester filler without identification
• CPlastic type only affects colour matching, not repair method
• DIdentification is unnecessary if the cover is replaced

What tool is used to check whether a panel has acceptable surface flatness before primer surfacer?

• AA long sanding block or straightedge with backlighting to reveal low and high areas
• BA tyre pressure gauge
• CA timing light
• DA refrigerant leak detector

What is the typical maximum polyester filler thickness recommended by most OEM refinish guidelines on outer panels?

• AGenerally 3–6 mm total after proper metal finishing, unless OEM specifies otherwise
• BUnlimited thickness if sanded smooth
• CExactly 25 mm for all crease repairs
• DZero filler is always required on any repair

When removing a spot-welded panel, what practice preserves adjacent panel integrity?

• AUse dedicated spot-weld cutters or drill bits sized to the weld nugget and follow OEM sec…
• BPry the panel off with a large crowbar without cutting welds
• CCut 200 mm outside every weld with an angle grinder arbitrarily
• DHeat the entire panel red-hot before removal

What is the purpose of a shrinking disc or heat shrinking on limited areas of panel steel?

• ATo relieve stretched metal and raise low areas without adding filler
• BTo remove all paint from the entire vehicle in one pass
• CTo anneal UHSS B-pillars to soft mild steel
• DTo cure two-pack clearcoat without a booth

Why must seam sealer be restored after replacing a welded quarter panel?

• ATo prevent moisture intrusion, corrosion, and NVH issues at panel joints per OEM specific…
• BSeam sealer is cosmetic only and may be omitted on hidden joints
• CAny household silicone is equivalent to OEM seam sealer
• DSeam sealer replaces all structural welds

When blending a repair area on an adjacent factory panel, what is the correct approach?

• AFeatheredge the repair boundary with graduated abrasives while preserving OEM corrosion p…
• BPaint the entire vehicle whenever any panel is repaired
• CApply colour only to the filled area without featheredging
• DMask a hard line 2 mm from the repair and apply full film build immediately

What symptom indicates a kinked door hem after a side impact?

• AMisaligned door gap along the lower edge and possible water leak at the hem seam
• BEngine misfire on cold start
• CABS warning lamp with no wheel speed fault
• DOverfilled engine oil on dipstick

What is the primary reason for using dedicated trim removal tools on clip-on mouldings?

• ATo prevent damage to painted panels and fragile clip anchors during disassembly
• BTo speed up grinding on structural rails
• CTo measure frame dimensions on a bench
• DTo mix isocyanate hardener safely

When repairing an aluminium outer panel, what consideration differs from conventional steel repair?

• AAluminium work hardens when hammered; heat and tools must follow OEM aluminium repair pro…
• BAluminium panels may be repaired with any steel filler without special prep
• CAluminium does not require isolation from steel dust during sanding
• DAluminium panels cannot be replaced, only filled

What document should be consulted first to determine whether a panel area is a prohibited weld zone?

• AOEM body repair manual or collision repair guidelines for the specific vehicle model
• BA generic social media tutorial regardless of model
• CThe tyre placard inside the fuel flap
• DThe vehicle audio system manual

After straightening a bonnet, what check confirms latch engagement and panel alignment?

• AVerify secondary latch catch, uniform gaps to fenders, and flush height with adjacent pan…
• BOnly check colour match in the booth
• CConfirm bonnet opens if lifted manually once
• DMeasure battery voltage at idle

What is the purpose of a three-dimensional measuring system on a structural repair bench?

• ATo compare current suspension and mounting point locations to OEM dimensions and identify…
• BTo measure paint film thickness only
• CTo program keyless entry remotes
• DTo test alternator output under load

When anchoring a unibody vehicle to a bench for structural pulls, what must be verified?

• AAnchoring clamps engage designated structural points without crushing thin sections and a…
• BAny convenient floor pan hole may be used regardless of thickness
• COnly cosmetic bumper brackets should carry pull loads
• DAnchoring is optional if damage appears minor

What does a negative toe reading on the rear axle after a rear-end collision suggest?

• APossible rear suspension or structural misalignment requiring measurement before panel re…
• BNormal condition requiring no further checks
• CLow engine oil level
• DIncorrect tyre brand fitted

Why are crush zones in modern unibody design important to collision repair theory?

• AThey manage crash energy and predetermined deformation; improper repair can alter crash p…
• BThey exist only to reduce manufacturing cost with no safety role
• CThey must always be filled with structural filler instead of replaced
• DThey are cosmetic features unrelated to occupant protection

What is the correct action if a structural rail shows kinking beyond OEM allowable limits?

• AReplace the affected section or assembly at OEM-specified sectioning points
• BHammer the kink flat and apply thick filler
• CHeat the rail cherry-red and stretch until straight by eye
• DIgnore the kink if outer panels fit

What pulling method applies force gradually while monitoring multiple reference points?

• AControlled multi-point pulling with repeated measure-check cycles
• BSingle maximum-force pull until metal tears
• CHydraulic ram attachment without any measurement
• DTowing the vehicle on a rope until straight

When sectioning a B-pillar, what must the technician locate in the OEM manual?

• AApproved sectioning joints, weld type, number of welds, and prohibited zones near airbag…
• BOnly the exterior paint code
• CRecommended engine oil viscosity
• DTyre rotation interval

What is the function of a datum plane in structural measuring?

• AA reference plane from which height, width, and length dimensions are compared to OEM spe…
• BA paint colour reference card
• CA tyre inflation chart
• DA refrigerant pressure scale

Why should structural repairs be completed before final wheel alignment in many collision jobs?

• AAlignment adjusts angles relative to mounting points; shifted structure makes alignment m…
• BAlignment must always be done before any welding
• CWheel alignment replaces the need for measuring systems
• DAlignment is unrelated to structural repair sequencing

What type of weld is commonly specified for MAG plug welds replacing factory spot welds?

• APlug weld through a drilled or punched hole at specified pitch and diameter per OEM
• BTIG brazing only on all exterior cosmetic panels without holes
• COxy-acetylene flame brazing on UHSS pillars without procedure
• DNo welds; only pop rivets in all structural joints

A vehicle with measurable diagonal length discrepancy after a frontal impact indicates:

• AStructural twist or shift requiring bench measurement and correction
• BNormal manufacturing tolerance only
• CIncorrect wheel balance weights
• DLow coolant level

What is the risk of welding on a vehicle still connected to a battery charger during structural repair?

• ASpurious electrical signals, weld quality issues, and SRS/ECU damage; disconnect and foll…
• BImproved weld penetration due to extra voltage
• CRequired practice for all MAG welding
• DNo effect if charger is 12 V

When replacing a welded-on strut tower apron, what verification confirms repair success?

• ADimensional check of strut mounting points, upper rail alignment, and suspension geometry…
• BOnly visual gloss of adjacent paint
• CRadio preset retention
• DWindscreen wiper sweep pattern