List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions. |
1. | Plan and prepare. | 1.1. | Job requirements are obtained, confirmed with relevant personnel, and applied to planning. |
| 1.2. | Work site is inspected, and conditions and hazards are identified and reported as required. |
| 1.3. | Health and safety requirements for levelling operations at the work site are confirmed and applied to planning. |
| | 1.4. | Levelling tools and equipment required for job are selected and checked for serviceability, and faults are rectified or reported before starting work. |
| | 1.5. | Team roles and verbal and non-verbal communication signals are confirmed, as required. |
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2. | Carry out levelling procedures using rise and fall method. | 2.1. | Instrument is accurately set up and tested for operation before commencing levelling activities. |
| 2.2. | Datum point is set up or located. |
| 2.3. | Readings are taken from the datum and at nominated or selected stations according to project specifications. |
| | 2.4. | Backsights, intermediate sights and foresights are identified and levels are booked. |
| | 2.5. | Instrument is transferred to another location, process is repeated, and change station is recorded in field book. |
| | 2.6. | Reduced levels for all stations are calculated using rise and fall method of calculation, and accuracy of field book recordings is checked using the three check method. |
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3. | Carry out levelling procedures using height of collimation method. | 3.1. | Instrument is accurately set up and operation and tolerances are checked. |
| 3.2 | Datum point is set up or located. |
| 3.3. | Level readingsare taken to datum, and the height of collimation is established. |
| | 3.4. | Readings are taken at nominated or selected stations according to project specifications. |
| | 3.5. | Instrument is transferred to another location, new height of collimation is established, and change station is recorded in field book. |
| | 3.6. | Reduced levels are calculated using height of instrument method. |
| | 3.7. | Reduced levels for all stations are identified from calculations and heights and levels are recorded. |
| | 3.8. | Accuracy of readings is established using height of collimation method of calculation and three check method. |
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4. | Calculate distances using stadia lines. | 4.1. | Distances are calculated from instrument to stations using staff, stadia lines, and identified factor of levelling instrument. |
4.2. | Readings and distances are recorded. |
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5. | Clean up. | 5.1. | Tools and equipment are cleaned, checked and stored. |
| 5.2. | Levelling devices are maintained and stored according to manufacturer recommendations and standard work practices. |
A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. The person must also transfer levels and record differences in height, undertaking at least one open traverse and one closed traverse using both the rise and fall method and the height of collimation method, on three of the following types of levelling operations:
establishing approximate distances and transfer of reduced levels
locating power, water, gas and telecommunications services
measuring and recording ground levels at respective critical set-out points
measuring and recording heights or levels for installing joinery
measuring and recording heights or levels of ceilings and floors
measuring and recording or checking levels in drainage
measuring and recording slab or pad levels for placement of steel columns or masonry piers
positioning offsets and recovery pegs for construction projects or for use in determining quantity from calculations.
shooting levels for concrete slabs
shooting levels for excavation or footings
transferring levels or heights for formwork.
calculating rise and fall and height from collimation.
In doing the above work, the person must:
locate, interpret and apply information, including standards and specifications that apply to specific levelling tasks
comply with site safety plan, health and safety regulations, and state and territory legislation applicable to workplace operations
comply with organisational policies and procedures, including quality requirements
safely and effectively use tools and equipment
communicate and work effectively and safely with others, including using agreed communication signals
set up and test levelling equipment
confirm accuracy of the readings taken
accurately record results of each levelling procedure according to organisational requirements
calculate distances using an optical levelling instrument and levelling staff.
A person demonstrating competency in this unit must demonstrate knowledge of:
reasons for making measurements of line, level and plumb in construction projects
basic construction and levelling processes relevant to levelling tasks specified in the performance evidence
construction plans, symbols and construction terminology relevant to levelling procedures
contents of and terms used in job safety analyses (JSA) and safe work method statements (SWMS) for tasks
characteristics, technical capabilities and limitations of different types of levelling devices
levelling techniques commonly used in construction work
processes for interpreting engineering drawings and sketches
processes for setting out construction tasks relating to levelling operations
project quality requirements relevant to levelling work
site and equipment safety requirements relevant to levelling work
site isolation and traffic control responsibilities and authorities.