Final Answer:
The statement is A. True. A normal roof drain typically consists of three basic components: a domed strainer, a flashing ring, and a drain body or sump.
Step-by-step explanation:
A normal roof drain is designed to effectively remove rainwater or other precipitation from the roof surface to prevent water accumulation and potential damage. The three essential components mentioned in the statement are accurate.
The domed strainer is positioned on top to prevent debris from clogging the drain, the flashing ring creates a watertight seal between the drain and the roof membrane, and the drain body or sump facilitates the drainage of water from the roof. These components work together to ensure proper drainage and prevent water-related issues.
Option A is the answer.