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Offline LisaS

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Question 7
« on: April 20, 2009, 02:32:31 PM »
QUESTION 7
Answer the following questions as they relate to storm water intakes and/or outfalls.
(a)  State the purpose of a wing wall for a storm water intake or outfall.
(2 marks)
(b)  Describe TWO different situations where wing walls may be installed.
 1
 2
(2 marks)
(c) State TWO purposes of the baffles on the outlet side of a wing wall.
 1
 2
(2 marks)
(d)  A grate is often installed to prevent large items entering into a wing wall.
 (i)  State where the grate should be installed.
 
(1 mark)
 (ii)  State the angle at which the grate should be installed.
(1 mark)
 (iii)  Explain the importance of the angle in (ii).
(1 mark)
Total 9 marks

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Offline plumbin

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Re: Question 7
« Reply #1 on: April 11, 2010, 05:40:35 PM »
where do we find information in regards to wing walls
thanks

Offline Plumber

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Re: Question 7
« Reply #2 on: April 11, 2010, 09:47:06 PM »
Wing walls are specified by either engineers, councils or manufacturers. They are manufactured to NZS 3109:1997 and 3114:1987. For more info I would recommend getting a spec from your council. Will help with study! see attached file Good luck
Please note that the advice I am giving is only my opinion and not necessarily a fact.  Please refer to our terms and conditions.


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