Wastewater Treatment (Leaving Cert Construction Studies): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the two critical purposes of individual wastewater treatment systems?
What are the two critical purposes of individual wastewater treatment systems?
Prevent contamination & protect public health
What is the minimum capacity required for a septic tank in Ireland?
What is the minimum capacity required for a septic tank in Ireland?
2,725 litres
What must the length of a septic tank be in relation to its width?
What must the length of a septic tank be in relation to its width?
Three times the width
What is the minimum distance required from a dwelling to its septic tank?
What is the minimum distance required from a dwelling to its septic tank?
7m
What type of bacteria breaks down solid waste in the first chamber of a septic tank?
What type of bacteria breaks down solid waste in the first chamber of a septic tank?
Anaerobic bacteria
What are the specifications for perforation holes in percolation pipes?
What are the specifications for perforation holes in percolation pipes?
8mm diameter at 75mm centres
What is the required depth for percolation trenches?
What is the required depth for percolation trenches?
800mm
How many percolation pipes must the distribution box channel wastewater to at minimum?
How many percolation pipes must the distribution box channel wastewater to at minimum?
Four pipes
What type of bacteria is used in mechanical aeration systems?
What type of bacteria is used in mechanical aeration systems?
Aerobic bacteria
How long must smoke be pumped through a drainage system during a smoke test?
How long must smoke be pumped through a drainage system during a smoke test?
Five minutes