CCQ Plumber Qualification Exam Free Practice Test
Questions and Answers.

• It is subject to the Code, because the plumbing installation now extends to the property boundaries.
• It falls under municipal civil engineering, so the Plumbing Code never applies to it, regardless of distance.
• It is subject to the Code on the first metre outside the building's foundation wall, and no further.
• It is subject to the Code if the building sewer serves more than one dwelling unit or a commercial building, and otherwise not.

Why: Article 3.02 applies the Code to work located in a building or outside it, within the property boundaries. Water service pipes and building sewers are therefore subject to it (type of piping, slope, protection, venting).

• 3 ladders
• 2 ladders
• 4 ladders
• 1 ladder

Why: A ladder is required for every 15 linear metres of trench or fraction thereof: 40 m includes two full 15 m portions and a fraction, so 3 ladders. Each one rests on the bottom and extends at least 1 m above the ground.

• 450 mm in length (in the direction of the outlet pipe) by 300 mm in width.
• 600 mm in length (in the direction of the outlet pipe) by 450 mm in width.
• 600 mm in length (in the direction of the outlet pipe) by 600 mm in width.
• 900 mm in length (in the direction of the outlet pipe) by 600 mm in width.

Why: Article 2.4.3.7. requires a one-piece basin, watertight and smooth on the inside, at least 600 mm in length (in the direction of the outlet pipe) by 450 mm in width; a circular basin is at least 560 mm in diameter.

• To the left of the sanitary drain, looking toward the street, as seen from the building.
• To the right of the sanitary drain, looking toward the street, as seen from the building.
• Above the sanitary drain, in the same trench and within 300 mm.
• At the same level as the sanitary drain, on the other side of the service entrance.

Why: Québec adds a layout rule to Article 2.4.7.1.: in a separate system, the storm drain is located to the left of the sanitary drain, looking toward the street, as seen from the building.

• A temperature above 60 °C, a pressure above 550 kPa and copper pipes.
• A temperature between 20 and 50 °C, stagnant water and poor sanitary condition of the systems.
• A temperature below 4 °C, a velocity above 3 m/s and galvanized steel pipes.
• A lead content above 0.2%, an acidic pH and the presence of chlorine in the water.

Why: Legionella is transmitted mainly by inhaling water vapour or mist. It proliferates between 20 and 50 °C, in the presence of stagnation or poor sanitary condition.