Plumbers NZ is New Zealand's largest online plumbing, gas and drainage resource. Plumbing exam help, plumbing news, directory and free quotes.
-
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
-
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