Above-Ground Drainage (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
How do grease and oils behave in a grease trap?
How do grease and oils behave in a grease trap?
They rise to the surface
What diameter is the main stack in a two-pipe drainage system?
What diameter is the main stack in a two-pipe drainage system?
100mm
What is the maximum permitted length of branch pipes in a two-pipe system?
What is the maximum permitted length of branch pipes in a two-pipe system?
1.7m
Which drainage system is more commonly used in modern installations?
Which drainage system is more commonly used in modern installations?
Single-stack system
What diameter are wastewater branch discharge pipes in a single-stack system?
What diameter are wastewater branch discharge pipes in a single-stack system?
40mm
What is the maximum length for soil water branch discharge pipes?
What is the maximum length for soil water branch discharge pipes?
6m
What size is the offset zone at ground floor level in the main stack?
What size is the offset zone at ground floor level in the main stack?
200mm
If a stack terminates within 3m of a window, how high must it extend above it?
If a stack terminates within 3m of a window, how high must it extend above it?
900mm
What depth does the water seal in traps typically maintain?
What depth does the water seal in traps typically maintain?
75mm
Which is NOT one of the three main mechanisms that compromise trap water seals?
Which is NOT one of the three main mechanisms that compromise trap water seals?
Grease accumulation