Test Your Knowledge On Plumbing Quiz

25 Questions | By C2x_op26 | Last updated: Jul 6, 2017

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Plumbing is any system in one's house, building or street that conveys fluids for a wide range of applications – such as sinks, dishwashers, showers, toilets and washing machines. Test your knowledge on plumbing with this quiz!

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Questions and Answers

1.

When water comes out as soon as the fire sprinkler is activated, the system is
- A.
  
  Wetpipe
- B.
  
  Pre-action
- C.
  
  Deluge
- D.
  
  Drypipe
2.

When there is a low pressure from the water main, what will you use to supply higher levels?

Discuss
- A.
  
  Booster pump
- B.
  
  Sump pump
- C.
  
  Pneumatic pump
- D.
  
  Jet pump
3.

What type of material used for the base of a septic tank
- A.
  
  Mass Concrete
- B.
  
  Reinforced concrete
- C.
  
  Light weight concrete
- D.
  
  Earth base
4.

What is the typical slope of a waste pipe
- A.
  
  1%
- B.
  
  2%
- C.
  
  3%
- D.
  
  4%
5.

Water enters through rim punchings and jets placed in an up-leg of the rear trap, filling the trapway and creating an instant siphon action without rise of water level. The result is quick water withdrawal. Large water surface provides an efficient and clean operation. With quiet flushing and moderate cost, this is the most popular residential model.

Discuss
- A.
  
  REVERSE-TRAP
- B.
  
  SIPHON-VORTEX
- C.
  
  SIPHON-JET
- D.
  
  WASH-DOWN
6.

Water enters through diagonal punching around the rim of the bowl, creating a vortex that draws the water down into the rear trap with a swirling action that scours the walls of the bowl. Water strikes two parallel ridges and folds over forming a jet, producing siphonic action. Large water surface provides a very efficient and clean process, and the flushing is extremely quiet. This model is mostly of one-piece construction with a low profile. Expensive.

Discuss
- A.
  
  SIPHON-VORTEX
- B.
  
  SIPHON-JET
- C.
  
  REVERSE-TRAP
- D.
  
  WASH-DOWN
7.

Water enters through an open rim, as though a bucket of water were dumped into the bowl, filling the front trapway and creating siphon action. This model provides quick removal of water with minimum water rise. Small water surface makes the model more vulnerable to soiling and clogging. This is the least efficient and most noisy type but lowest in cost.

Discuss
- A.
  
  WASH-DOWN
- B.
  
  SIPHON-JET
- C.
  
  REVERSE-TRAP
- D.
  
  SIPHON-VORTEX
8.

Used to connect the two ends of two pipes, neither of which can be turned

Discuss
- A.
  
  COUPLING
- B.
  
  CAULKING
- C.
  
  NIPPLE
- D.
  
  TREAD
9.

This material is used to threaded pipe connections to prevent leakage
- A.
  
  Teflon tape
- B.
  
  Solvent
- C.
  
  Fitting
- D.
  
  Plumbing tape
10.

The standard water pressure from nawasa, maynilad, manila water etc.
- A.
  
  20 psi
- B.
  
  40 psi
- C.
  
  60 psi
- D.
  
  80 psi
11.

The principal artery of the venting system to which vent branches may be connected
- A.
  
  MAIN VENT
- B.
  
  LOOP or CIRCUIT VENT
- C.
  
  LOCAL VENT
- D.
  
  GROUP VENT
12.

The length along the center of the pipe and fitting
- A.
  
  EMBEDMENT LENGTH
- B.
  
  DEVELOPMENT LENGTH
- C.
  
  DEVELOPED LENGTH
- D.
  
  SPAN
13.

The extension of a soil or waste stack above the highest horizontal drain connected to the stack horizontal drain, the uppermost end above the roof
- A.
  
  UNIT VENT
- B.
  
  STACK VENT
- C.
  
  RELIEF VENT
- D.
  
  DRY VENT
14.

Strong flushing action is created by a jet of water directed into the rim and jet. The force of the jet draws the bowl contents into the rear trap. It doesn't use siphonic action but relies on the driving force of jet action. At flush valve 25 psi is needed with 1.5-in. inlet spud. Large water surface and large trapway size make this model efficient and suitable for commercial use. Flushing is very noisy. Expensive.
- A.
  
  REVERSE-TRAP
- B.
  
  PRESSURE/TANKLESS
- C.
  
  PRESSURE/TANK
- D.
  
  SIPHON-VORTEX
15.

Refers to any group of two or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch
- A.
  
  CIRCUIT OF FIXTURE
- B.
  
  GROUP OF FIXTURE
- C.
  
  BATTERY OF FIXTURE
16.

Water enters through rim punchings and through a jet that fills the rear trapway completely, creating a siphon action and resulting in quick withdrawal of water from the bowl. A water jet is located at the inlet of the trapway. Most of the bowl surface is covered with water. This model is efficient but moderately noisy. Its cost is reasonably low.
- A.
  
  WASH-DOWN
- B.
  
  REVERSE-TRAP
- C.
  
  SIPHON-JET
- D.
  
  SIPHON-VORTEX
17.

Plumbing permit shall be invalid if works not commenced after a period of
- A.
  
  120 days
- B.
  
  1 year
- C.
  
  2 years
- D.
  
  3 years
18.

It is added to water to reduce salinity

Discuss
- A.
  
  Disinfectant
- B.
  
  Solvent
- C.
  
  Electrolysis
- D.
  
  Salt prurifier
19.

Is the lowest portion of the inside of any pipe or conduit that is not vertical
- A.
  
  INVERT
- B.
  
  UNDER
- C.
  
  BASED
20.

Is the flow of water or other liquids, mixtures or substances into the distributing pipes of a supply of water from any source other than its intended source
- A.
  
  BACK SIPHONAGE
- B.
  
  BACKFLOW
- C.
  
  BACK PRESSURE
- D.
  
  BEHIND FLOW
21.

Is the extended portion of a pipe that is closed at one end to which no connections are made on the extended portion
- A.
  
  LAST LINE
- B.
  
  DEAD END
- C.
  
  FINAL PIPE
22.

Is the backflow of used, contaminated or polluted water from a plumbing fixture due to negative pressure
- A.
  
  BACK SIPHONAGE
- B.
  
  BEHIND FLOW
- C.
  
  BACK PRESSURE
23.

Is a pipe on the fixture side of the trap through which vapor or foul air is removed from a room fixture
- A.
  
  BRANCH VENT
- B.
  
  LOCAL VENT
- C.
  
  LOOP or CIRCUIT VENT
- D.
  
  GROUP VENT
24.

Is a pipe connecting several fixtures
- A.
  
  FIXTURE BRANCH
- B.
  
  FIXTURE PIPE
- C.
  
  FIXTURE LINE
25.

Is a device located at the bottom of the tank for the purpose of flushing water closets and and similar fixture

Discuss
- A.
  
  FLOOD LINE
- B.
  
  FLOOD LEVEL
- C.
  
  FLOOD MEASURED

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