Consider the following statements regarding plumbing systems 1. Trap seals in plumbing systems prevent sewer gases from entering buildings. 2. Vent pipes in plumbing systems help maintain atmospheric pressure in drainage pipes. Which of the above statements is/are correct?
- A1 only
- B2 only
- CBoth 1 and 2Correct
- DNone of the above
Solution
Concept
Plumbing Traps and Ventilation Systems
Formula
N/A
Step-by-step solution
1. Analyze Statement 1 regarding trap seals and confirm that they prevent foul sewer gases from entering buildings by maintaining a water barrier. 2. Analyze Statement 2 regarding vent pipes and confirm that they maintain atmospheric pressure in drainage pipes to prevent siphonage. 3. Conclude that both statements 1 and 2 are correct and select Option C.
Explanation
Trap seals hold water to create a barrier that blocks foul sewer gases from entering the building. Vent pipes allow outside air into the drainage network to prevent siphonage and maintain atmospheric pressure, ensuring smooth wastewater flow. Therefore, both statements are correct.
Shortcut
To remember the key functions of Plumbing Traps and Vent Pipes, use the mnemonic "Traps Block, Vents Breathe": - Traps Block: Trap seals hold water to block foul sewer gases from entering buildings. - Vents Breathe: Vent pipes supply outside air to maintain atmospheric pressure and prevent siphonage.
Common mistake
A common mistake is selecting Option A by incorrectly assuming that vent pipes only serve to release foul odors, overlooking their crucial role in maintaining atmospheric pressure and preventing siphonage of the trap seal. Another frequent mistake is selecting Option B by believing that traps are optional or secondary, when in fact both components work together to ensure a safe and functioning drainage system.
Correct answer: C) Both 1 and 2