Drainage Systems Trap Quiz

Preventing the entry of foul gases into the atmosphere

Seal

Glazed earthenware, vitreous, porcelain, cast iron, PVC, or hi-density polyethylene

<p>Greater depth of water seal makes it more effective</p> Signup and view all the answers

<p>At least 150 mm</p> Signup and view all the answers

<p>Provide sufficient retention time, stable hydraulic conditions, adequate storage for sludge and scum, and ensure no blockages and adequate ventilation of gases.</p> Signup and view all the answers

<p>They are environmentally friendly when properly maintained, require less infrastructure than city sewers, use less energy, and rarely rely on chemicals.</p> Signup and view all the answers

<p>Responsible for the cost of installation and maintenance of the septic system.</p> Signup and view all the answers

<p>Retention, partial treatment, and discharge for further treatment of sewage.</p> Signup and view all the answers

<p>It is an important tool to conserve the local water supply.</p> Signup and view all the answers

<p>Sufficient retention time, stable hydraulic conditions, large enough storage, adequate ventilation</p> Signup and view all the answers

<p>They are environmentally friendly when properly maintained</p> Signup and view all the answers

<p>The homeowner is responsible for the cost to install and maintain a septic system, while a sewer directs wastewater to a centralized treatment plant funded by fees and taxes</p> Signup and view all the answers

<p>To provide access to sewer or drain, and allow entry for maintenance</p> Signup and view all the answers

<p>They are important tools to conserve the local water supply</p> Signup and view all the answers