Which of the following components of a storage tank is used to clean the tank periodically?

The opening at the top of the intercepting trap is called as _______

____________ is used to measure flows to domestic buildings.

Partially ventilated single stack system is the modified form of ______

Inferential meters can be used for both low and high flows.

Which of the following statements regarding systems of plumbing for drainage of buildings is not correct?

The length of the bathtubs generally varies from _______

The flushing cistern in the Indian type water closet is normally kept ____ above the closet.