The following are forms of heat transfer EXCEPT

7. Man holes are constructed on the drainage system to
Manholes provide access to the drainage system for maintenance.

• C. Allow inspection and cleaning

8. The pipe that supplies cold water to the storage is.
The rising main carries water from the main supply to an elevated storage tank.

• B. Rising main

9. A 25mm diameter cold water pipe is equivalent to
To convert millimeters to inches, we use the conversion factor $1 \text{ inch} = 25.4 \text{ mm}$.

$$25 \text{ mm} \times \frac{1 \text{ inch}}{25.4 \text{ mm}} \approx 0.984 \text{ inches}$$

This is approximately 1 inch.

• C. 1"

10. The following are forms of heat transfer EXCEPT
The three primary forms of heat transfer are conduction, convection, and radiation. Evaporation is a phase change process that involves heat transfer, but it is not a fundamental form of heat transfer in the same category as the other three.

• B. Evaporation

11. The part of the service pipe from the main up to boundary stop cock is called
The communication pipe is the section of the service pipe that connects the water main to the consumer's boundary stopcock.

• A. Communication pipe

12. The process of hydrological cycle consists of
The hydrological cycle, also known as the water cycle, involves the continuous movement of water on, above, and below the surface of the Earth. Key processes include evaporation, condensation, precipitation, and transpiration.

• B. Transpiration, evaporation, condensation.