What you have to do
For this assessment, read the questions below and answer.
How you will be assessed
The questions in this assessment cover a number of areas within the unit of competency
You will need to show that you are competent across all the areas contained in this assessment.
1. Levelling on building sites is usually carried out using:
• Laser level or
• Automatic level
For both of these instruments, outline in point form, the setup procedure to level the instruments ready for use.
Detail how you would determine and record the levels using these instruments. Comment on the accuracy of these instruments.
2. Outline the procedure to carry out the two peg test prior to using an automatic level.
Use simple sketches to help explain the procedure.
3. The attached diagram depicts a level run. From the attached diagram of the Level Run, book the readings and reduce the levels to determine the RL of Point B. Carry out all checks to confirm the accuracy of the run. (30 marks)
BS IS FS Rise Fall Reduced
Is this within the acceptable error?
Remember, acceptable error = ±[5 + √(no. of change points)] mm
4. List possible hazards/risks encountered on site while conducting site survey and set out tasks.