Question

which of the following fixtures does not require a trap?
toilets
basins
bathtubs
showers
bidets
question 7
pressure balancing valves
protect against scalding at showers
prevent cross connections
are backflow preventers
are used with pressure regulators
are not permitted in many areas

Explanation:

Toilets are designed with an integral trap - shaped part in their structure to prevent sewer gases from entering the living space. Basins, bathtubs, showers, and bidets typically require a separate trap to be installed in their drainage systems for the same purpose. Pressure - balancing valves in showers are designed to maintain a consistent water temperature and protect against scalding by adjusting the hot and cold water mix when there are changes in water pressure.

Answer:

1. toilets
2. protect against scalding at showers