fajardo 11 plumbing ventilation
Quiz
•
Professional Development
•
1st Grade
•
Medium
dream mayang
Used 6+ times
FREE Resource
43 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
____ of a plumbing system, is that portion of the drainage pipe installation, designed to maintain a balance atmospheric pressure inside the system to prevent problems like:
1. Trap seal loss
2. Retardation of flow
3. Deterioration of the materials
Ventilation
Pressure valve
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Among the most common and serious problem being
encountered in a drainage system is the ____.
_____ can be attributed to inadequate ventilation
of the trap and the subsequent minus and plus pressures
inside the system.
Trap Seal Loss
back pressure
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
_____ is the result of minus pressure in the drainage system. If the trap of a common seal is open and exposed to the atmosphere, both the inlet and the outlet orifices will be under balance atmospheric pressure. As such, the tendency of water seal to move is remote.
Siphonage
Back pressure
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the water seal escape from
the P-trap, it is called ____
Trap Seal Loss.
Self Siphoning
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
_____ occur in unventilated traps ,which serves as oval bottom fixtures like lavatories or slop sink. Self siphonage is created when a rapid flow of water passing through the pipe siphon down the water seal inside the traps with no vent provision.
Direct or Self Siphoning
Indirect or Momentum Siphoning
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
____ is the result of a minus pressure in the pipe created by heavy discharge of water from a fixture installed on a line serving another fixture at a lower floor.
Indirect or Momentum Siphoning
Self siphonage
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
_____ is caused by plus pressure. When large
amount of water flow drops downward rapidly forming a
slug like, the air inside the pipe will be compressed
downward.
Back Pressure
Indirect or Momentum Siphoning
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