# Question 3. What sorts of hazards do you need to plan for? - PowerPoint PPT Presentation

Question 3. What sorts of hazards do you need to plan for?

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Question 3. What sorts of hazards do you need to plan for?

## Question 3. What sorts of hazards do you need to plan for?

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##### Presentation Transcript

1. Question 3. What sorts of hazards do you need to plan for? Click for answer marker Radio interference Slinging hazards Tripping hazards Ground stability Wind, lightning or rain

2. Question 24. What personal protective equipment (PPE) must a dogger wear? Click for answer marker Safety glasses to protect your eyes Safety shoes/boots Safety helmet to protect your head Hi-vis vests

3. Question 27. You will use a two-legged Grade T (80) chain in a choke hitch on a square load at an angle of 60 degrees. The weight of the load is 1750kg. What’s the smallest diameter slings you need to use? Click for answer First, calculate the WLL. WLL = load ÷ angle factor ÷ reeve factor WLL = 1750 ÷ 1.73 x 0.75 WLL = 1348.7kg Now we can work out the diameter of the chain sling. Use the reverse “rule of thumb” formula for Grade T (80). Diameter = √(WLL ÷ 32) D = √(1348.7 ÷ 32) D = √42.14 D = 6.49mm (round up) D = 7mm marker

4. Question 37. When choosing the lifting/slinging points, what do you need to think about? Click for answer Reeve and angles Load balance and centre of load distribution marker Strength and security of the slings

5. Question 49. What should you do with hazard controls when the job is finished? Click for answer marker Take down safety nets Put away safety barriers and witches hats Take down signs