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100+ Free High Risk Work Licence — Slewing Mobile Crane C0 (over 100t) Practice Questions
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2026 Statistics
Key Facts: High Risk Work Licence — Slewing Mobile Crane C0 (over 100t) Exam
100
Practice Questions
OpenExamPrep
TLILIC0020
Unit of Competency
training.gov.au
>100 t
Maximum Rated Capacity class
WHS Regulations / TLILIC0020
5 yrs
Licence Validity
WHS Regulators
The Australia HRWL C0 (slewing mobile crane over 100 t) assessment is based on TLILIC0020 and the mandated NAI. Candidates must pass closed-book theory and 100% accurate load-chart, outrigger, and multi-crane calculations, then a practical assessment. C0 is the open/highest slewing class. This prep includes 100 practice questions.
Sample High Risk Work Licence — Slewing Mobile Crane C0 (over 100t) Practice Questions
Try these sample questions to test your High Risk Work Licence — Slewing Mobile Crane C0 (over 100t) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1What is the current national unit of competency for a C0 High Risk Work Licence to operate a slewing mobile crane over 100 tonnes?
A.TLILIC0020 Licence to operate a slewing mobile crane (over 100 tonnes)
B.TLILIC0021 Licence to operate a slewing mobile crane (up to 100 tonnes)
C.TLILIC0023 Licence to operate a slewing mobile crane (up to 60 tonnes)
D.TLILIC0022 Licence to operate a slewing mobile crane (up to 20 tonnes)
Explanation: training.gov.au lists TLILIC0020 as the unit specifying skills and knowledge to safely operate a slewing mobile crane with a Maximum Rated Capacity (MRC) over 100 tonnes. That unit underpins the C0 HRWL class (class code C0 with a zero, not the letter O).
2What is the Maximum Rated Capacity (MRC) threshold for the C0 slewing mobile crane licence class?
A.Over 100 tonnes
B.Up to 100 tonnes
C.Up to 60 tonnes
D.Up to 20 tonnes
Explanation: Class C0 covers slewing mobile cranes with an MRC over 100 tonnes. C1 is up to 100 t, C6 up to 60 t, and C2 up to 20 t.
3Under the published Australian mobile crane High Risk Work hierarchy, which lower slewing classes does a C0 licence encompass?
A.C1, C6 and C2 slewing mobile crane classes
B.Only C1 — C6 and C2 require separate tickets
C.Tower crane (CT) and bridge and gantry (CB) only
D.Personnel and materials hoist (HP) only
Explanation: WHS regulator hierarchy tables (e.g. SafeWork NSW) show C0 as the highest slewing mobile crane class, encompassing the lower slewing classes C1, C6 and C2. Candidates should confirm current rules for non-slewing classes such as CN/CV with their state regulator.
4How is the C0 licence class code correctly written?
A.C0 using the digit zero (not the letter O)
B.CO using the letter O only
C.C-zero spelled out with no numeral
D.C100 as an abbreviation for over 100 tonnes
Explanation: The High Risk Work class for slewing mobile cranes over 100 tonnes is C0 with a zero. Some marketing materials write “CO”, but the official class uses the digit 0, matching related classes C1, C2 and C6.
5A slewing mobile crane is best defined as a mobile crane that:
A.Incorporates a boom or jib capable of being slewed (rotated about a vertical axis)
B.Can only travel with a load and cannot rotate the superstructure
C.Is always mounted permanently on a building portal frame
D.Is limited to earthmoving plant configured as a crane
Explanation: TLILIC0020 and WHS guidance define a slewing mobile crane as a mobile crane incorporating a boom or jib that can be slewed. Earthmoving plant configured for crane work is generally excluded from this definition for licensing purposes.
6According to TLILIC0020 performance expectations, who must move the loads during competent crane operation assessment?
A.A person holding a High Risk Work Licence class DG (dogging)
B.Any site labourer who has watched a toolbox talk
C.The crane operator alone without a dogger when the load is in sight
D.Only a rigger with an RA advanced rigging licence
Explanation: Unit delivery guidance requires loads to be moved by a licensed HRW DG class dogger. The C0 operator works with the dogger for communication, load path, and attachment of lifting gear as required.
7What Australian Standard series is commonly referenced for safe use of mobile cranes, including multi-crane lifts?
A.AS 2550 (Cranes, hoists and winches — Safe use), including AS 2550.1 and AS 2550.5
B.AS 3000 wiring rules only
C.ISO 9001 quality management only
D.AS 1428 disability access only
Explanation: AS 2550.1 covers general safe use of cranes (including multi-crane lifting principles) and AS 2550.5 addresses mobile cranes. Regulators and industry guidance frequently reference this series alongside WHS laws.
8Before working near overhead powerlines with a mobile crane, what is the preferred control hierarchy action where reasonably practicable?
A.Have the lines de-energised or re-routed so the work can proceed outside electrical risk
B.Ignore voltage and always use a 1-metre clearance
C.Touch the lines briefly with an insulated tag line to confirm they are live
D.Rely only on the crane computer without a site risk assessment
Explanation: WHS guidance on work near electric lines prioritises eliminating the hazard by de-energising or re-routing lines where reasonably practicable. If that is not practicable, maintain mandated exclusion zones and other controls from a risk assessment and the electrical entity’s requirements.
9If the voltage of overhead lines cannot be confirmed before a C0 lift, what is the safer planning approach?
A.Assume a higher-voltage clearance requirement until the electrical asset owner confirms the voltage
B.Use the smallest published clearance to maximise reach
C.Proceed without exclusion zones if the dogger says it looks safe
D.Slew under the lines with the boom fully retracted only
Explanation: When voltage is uncertain, treat the lines as higher voltage and maintain the larger applicable clearance until the electrical entity confirms otherwise.
10Which document typically records hazards, controls and the lift method for a high-capacity C0 lift on a construction site?
A.A Safe Work Method Statement (SWMS) and/or documented lift plan appropriate to the task risk
B.Only a verbal agreement between operators over morning tea
C.A vehicle registration certificate for the carrier
D.A purchase order for diesel fuel
Explanation: High-risk construction work involving mobile cranes requires planning documentation such as a SWMS. Complex or multi-crane C0 lifts also need a documented lift plan prepared by a competent person.
About the High Risk Work Licence — Slewing Mobile Crane C0 (over 100t) Practice Questions
Verified exam format metadata for Australia High Risk Work Licence — Slewing Mobile Crane over 100 Tonnes (C0) Assessment is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.