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Question 4

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LisaS

April 20, 2009, 03:58:58 PM
QUESTION 4
A drainlayer has been asked to inspect a branch drain down a 3 metre deep manhole.
List THREE primary safety precautions the drainlayer should take before entering the manhole.
1
2
3
Total 3 marks

Linkback: https://forum.plumbers.nz/drainlaying-exam-november-2007/25/question-4/234/
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mrchop

#1
May 23, 2010, 05:13:27 PM
QUESTION 4
A drainlayer has been asked to inspect a branch drain down a 3 metre deep manhole.
List THREE primary safety precautions the drainlayer should take before entering the manhole.
1 tested for oxygen depleted and inriched enviroments
2 tested for toxic containments
3 tested for for flamablilty
Total 3 marks
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fixing christchurch city one pipe at a time.
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