PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free High Risk Work Licence — Concrete Placing Boom (PB) Practice Questions

Pass your Australia High Risk Work Licence — Concrete Placing Boom (PB) Assessment exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More Australia High Risk Work Licensing

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Australia High Risk Work Licence — Reach Stacker (RS)

Practice Questions

Australia High Risk Work Licence — Advanced Boiler (BA)

Practice Questions

Australia High Risk Work Licence — Advanced Rigging (RA)

Practice Questions

Australia High Risk Work Licence — Advanced Scaffolding (SA)

Practice Questions

Australia High Risk Work Licence — Basic Rigging (RB)

Practice Questions

Australia High Risk Work Licence — Basic Scaffolding (SB)

Practice Questions
2026 Statistics

Key Facts: High Risk Work Licence — Concrete Placing Boom (PB) Exam

100

Practice Questions

OpenExamPrep

NAI

Closed / unpublished

Safe Work / regulators

Must-pass

Calculations & Safety

RTO/assessor practice

5 yrs

Licence Validity

WHS Regulators

The Australia HRWL Concrete Placing Boom (PB) pathway uses a closed-book NAI knowledge and calculation assessment plus practical for CPCCLBM3001. Critical calculations and safety items are commonly treated as must-pass. This prep includes 100 practice questions.

Sample High Risk Work Licence — Concrete Placing Boom (PB) Practice Questions

Try these sample questions to test your High Risk Work Licence — Concrete Placing Boom (PB) 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 primary purpose of a Safe Work Method Statement (SWMS) in concrete placing boom operations?
A.To serve as a training manual for apprentice operators
B.To outline the step-by-step procedure and risk control measures for high-risk construction work
C.To record the concrete mix design and slump test results on site
D.To provide a log of daily machinery run-times and maintenance records
Explanation: A Safe Work Method Statement (SWMS) is a legal document required for high-risk construction work (HRCW) in Australia. It outlines the specific steps of the task, identifies hazards, and details the control measures implemented to manage safety risks. Operating a concrete placing boom is classified as high-risk construction work, making a SWMS mandatory.
2Under Australian Work Health and Safety (WHS) legislation, who holds the primary duty of care to ensure the safety of workers on a construction site?
A.The health and safety representative (HSR)
B.The concrete placing boom operator
C.The Person Conducting a Business or Undertaking (PCBU)
D.The concrete batch plant manager
Explanation: Under the model WHS Act, the Person Conducting a Business or Undertaking (PCBU)—typically the principal contractor or employer—holds the primary duty of care. They must ensure, so far as is reasonably practicable, the health and safety of workers and others at the workplace. While workers (including boom operators) have duties to take reasonable care, the primary legal responsibility rests with the PCBU.
3According to the hierarchy of control, which hazard control measure is considered the most effective?
A.Administrative controls, such as scheduling work at night
B.Engineering controls, such as fitting safety guards
C.Personal Protective Equipment (PPE), such as wearing a hard hat
D.Elimination, such as removing the hazard entirely
Explanation: The hierarchy of control ranks risk control measures from the highest level of protection and reliability to the lowest. Elimination (completely removing the hazard) is the most effective control. If elimination is not possible, the hierarchy progresses through substitution, isolation, engineering, administration, and finally, PPE as a last resort.
4When planning the placement of a mobile concrete placing boom, which of the following represents the most critical hazard to locate and assess?
A.The distance to the nearest worker lunchroom
B.Overhead electrical power lines
C.The color of the delivery truck cabin
D.The site concrete waste disposal bin location
Explanation: Overhead electrical power lines pose an immediate, fatal risk of electrocution if contacted by the placing boom or delivery line. Identifying and maintaining safe clearance zones from power lines is a primary requirement during site inspection and planning. Operators must always assume power lines are live unless confirmed otherwise by the electrical authority.
5In most Australian jurisdictions, what is the minimum standard clearance distance that must be maintained when operating near overhead powerlines on poles (up to 132kV) without a close-approach permit?
A.1.5 metres
B.3.0 metres
C.6.0 metres
D.10.0 metres
Explanation: The standard minimum safety clearance distance for operating plant near overhead powerlines on wooden poles (up to 132kV) is 3.0 metres. For higher voltage transmission lines on steel towers, this distance increases (typically to 6.0 metres). Operators must consult local state regulator guidelines (e.g., SafeWork NSW, WorkSafe Victoria) as specific regulatory limits can vary or require a spotter.
6What immediate action should a concrete placing boom operator take if they notice a worker entering the boom's discharge hazard zone without high-visibility clothing or eye protection?
A.Continue pumping but slow down the boom speed
B.Stop pumping immediately and alert the worker to exit the zone
C.Wait for the site foreman to notice and address the worker
D.Slew the boom away from the worker while continuing to discharge concrete
Explanation: The operator has a duty of care to ensure the safety of others in the vicinity of their plant. If anyone enters a hazard zone without proper PPE or clearance, the operator must stop pumping operations immediately. Work must only resume once the hazard has been resolved and the area is clear.
7Before operating a concrete placing boom at the start of a shift, what is the first check you should perform regarding the machine's logbook?
A.Check the operator's lunch break schedule
B.Verify the logbook is signed by the main contractor's safety officer
C.Ensure the logbook is present, current, and all previous defects have been signed off as repaired
D.Read the logbook entries from six months ago to check fluid brands
Explanation: The machine logbook is a critical document that tracks maintenance, repairs, inspections, and defects. The operator must check that the logbook is on the machine, up to date, and that any previously reported faults or defects have been corrected and signed off by a competent person before starting operation.
8What does a red 'DANGER - DO NOT OPERATE' tag attached to the main isolation switch of a concrete placing boom signify?
A.The machine is operating at maximum capacity
B.The operator is currently on a lunch break and will return shortly
C.The machine has a known defect, is unsafe to operate, and must remain isolated
D.The concrete delivery truck is backing into position
Explanation: A danger tag (red tag) is placed on equipment to isolate it and warn others that the machine has a fault or is undergoing maintenance and is unsafe to operate. Operating tagged-out machinery is a severe safety breach. The tag must only be removed by the authorized person who placed it or a qualified supervisor after the fault is repaired.
9What visual check must be performed on the concrete delivery pipeline couplings during the pre-start inspection?
A.Ensure they are painted in safety yellow
B.Check that they are clean, dry, and free of any concrete residue
C.Verify they are fully closed, double-bolted or pinned with safety clips, and have no cracks or wear
D.Ensure they are wrapped in electrical tape to prevent heat transfer
Explanation: Delivery line couplings are subject to high pressure during pumping. They must be inspected to ensure they are structurally sound (no cracks or excessive wear), properly sealed, and locked with safety pins or clips to prevent them from opening under pressure, which can cause a blowout.
10Why is it essential to check that the outrigger locking pins are fully engaged during setup?
A.To prevent the outriggers from sliding back or collapsing under the weight of the boom
B.To reduce the overall weight of the truck-mounted unit
C.To allow the truck tires to maintain contact with the ground
D.To permit the boom to slew faster during operation
Explanation: Outrigger locking pins secure the outrigger beams in their extended positions. If the pins are not fully engaged, the outriggers could retract or slide under load, causing the machine to tip over. This is a critical stability check that must be verified prior to deploying the placing boom.

About the High Risk Work Licence — Concrete Placing Boom (PB) Exam

The High Risk Work Licence for Concrete Placing Boom (PB class) is required in Australia to operate a concrete placing boom that is a mobile, truck-mounted, or tower-mounted boom. Assessment is based on the national unit of competency CPCCLBM3001 — Licence to operate a concrete placing boom. It covers planning the task, hazard identification, pre-start checks, boom stability and outrigger setup, ground bearing capacity and pressures, concrete pumping operations, pump blockage clearances, emergency procedures, and WHS/OHS regulations.

Assessment

Closed-book National Assessment Instrument (NAI) knowledge and calculations assessment, plus a practical concrete placing boom operation assessment, administered by an accredited high-risk work assessor through a Registered Training Organisation (RTO).

Time Limit

Varies by RTO / assessor (closed-book knowledge and calculations, then practical)

Passing Score

Competency-based overall. Candidates are commonly required to answer stability calculations and safety-critical theory correctly and must demonstrate competent practical operation; exact marking rules sit in the closed NAI.

Exam Fee

RTO training and assessment fees commonly fall roughly in the $1,500–$2,500 AUD range depending on provider and duration, plus a separate regulator HRWL application fee (e.g. SafeWork NSW 2026–27: $95 per class for a new licence; renewal and other states/territories differ—check your regulator). (State and Territory Work Health and Safety (WHS) regulators (e.g., SafeWork NSW, WorkSafe Victoria, WorkSafe Queensland).)

High Risk Work Licence — Concrete Placing Boom (PB) Exam Content Outline

25%

Plan Work & Hazard Identification

Task planning from work orders, site inspection, WHS duties, hierarchy of control, SWMS/risk assessment, overhead powerlines and underground services, weather, hazard identification, and communication.

25%

Pre-Start Inspection & Preparation

Data plate and logbook checks, structural inspection, safety-device checks, outrigger system check, fluid/oil checks, identifying defects, tagging out, and site setup.

20%

Stability & Calculations

Ground bearing capacity, outrigger pressure calculations, cribbing/soleplates setup, boom configurations, wind speeds, dynamic loading, and keeping the unit stable.

30%

Operate & Shut Down

Safe boom deployment, concrete pumping operations, line blockage clearing, remote control operations, pipeline setup, clean up, wash out, emergency procedures, emergency stops, parking, and post-operational isolation.

How to Pass the High Risk Work Licence — Concrete Placing Boom (PB) Exam

What You Need to Know

  • Passing score: Competency-based overall. Candidates are commonly required to answer stability calculations and safety-critical theory correctly and must demonstrate competent practical operation; exact marking rules sit in the closed NAI.
  • Assessment: Closed-book National Assessment Instrument (NAI) knowledge and calculations assessment, plus a practical concrete placing boom operation assessment, administered by an accredited high-risk work assessor through a Registered Training Organisation (RTO).
  • Time limit: Varies by RTO / assessor (closed-book knowledge and calculations, then practical)
  • Exam fee: RTO training and assessment fees commonly fall roughly in the $1,500–$2,500 AUD range depending on provider and duration, plus a separate regulator HRWL application fee (e.g. SafeWork NSW 2026–27: $95 per class for a new licence; renewal and other states/territories differ—check your regulator).

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

High Risk Work Licence — Concrete Placing Boom (PB) Study Tips from Top Performers

1Understand ground pressure calculations: Total load (machine weight + concrete weight) distributed over the outrigger pad area. Always ensure soleplates/timbers are large enough to reduce ground pressure below ground bearing capacity.
2Memorise electrical safety clearance distances: In Australia, general clearance zones for overhead powerlines depend on voltage (commonly 3 metres for up to 132kV, and 6 metres above, but always check state-specific WHS codes).
3Always inspect the delivery pipe thickness: Check pipes and elbows for wear. Thin pipes can burst under pressure, posing severe hazards.
4Know the emergency washout procedure: Keep the boom clear of personnel, use blowout balls carefully, and never use compressed air to blow out lines unless specific procedures are approved, as this can create a projectile hazard.

Frequently Asked Questions

What is covered by a Concrete Placing Boom (PB) licence?

The PB licence class covers the operation of a concrete placing boom that is a mobile or tower-mounted boom. It does not cover line pumps (which don't have a placing boom) or other high risk work classes, although general concrete pumping operations follow similar safety guidelines.

How long is a PB High Risk Work Licence valid?

Like all Australian HRWLs, a PB licence is valid for 5 years and is nationally recognised. You must renew it through your state or territory WHS regulator (such as SafeWork NSW, WorkSafe Victoria) before it expires.

What are the pre-requisites for CPCCLBM3001?

Candidates must be at least 18 years of age. RTOs typically require basic English literacy and numeracy to handle calculations. Many sites also require a General Construction Induction Card (White Card) to work on site.

What is the procedure for clearing a concrete line blockage?

Clearing blockages must be performed with extreme care due to stored pressure. It involves reversing the pump direction to relieve line pressure, locating the blockage, wearing proper PPE (especially eye protection), and carefully splitting the pipeline coupling only after pressure is confirmed fully relieved.