Common Plumbing Processes Mock 1

Common Plumbing Processes Mock 1

• Question 1: Job specifications, site plans, and water regulations are sources of information about responsibilities for cutting walls and floors for systems pipework.
• Question 2: Extension lights with unbreakable glass or wire cage protectors are typically required in bathrooms.
• Question 3: Dirt marks on a landing wall, brought up during pre-installation inspection, should be recorded, the issue brought to the supervisor, and a plan for addressing it made.
• Question 4: Moving a cast iron bath to the first floor of an occupied house requires a crate for lifting and covering the floor to avoid damage.
• Question 5: Homeowners on new estates will receive operating instructions of appliances, site plans of the houses indicating position on the site, material delivery notes, and work schedules for their house.
• Question 6: A delivery advice note is provided by the supplier to confirm material details, required quantity and the delivery address.
• Question 7: Quotation documents state the exact price plumbers' merchants charge for materials.
• Question 8: Delays caused by incorrect materials are found in the Bill of Quantities, Plumbing Installation Specification, or Work Programmes
• Question 9: Site stock records, and Bill of Quantities will show the quantities of available materials for construction sites.
• Question 10: Discolouration of wallpaper near gas flames, or dirt on the base of the hearth indicate incorrect installation or operation issues.
• Question 11: Overall length of a 15mm copper pipe with a 90-degree bend is 821mm.
• Question 12: The required distance between two equal tee fittings is 300mm; 15mm is the length from center of tee to end of pipe, thus overall length is 315mm.
• Question 13: Maximum depth of cut in a floor joist 180mm by 50mm is 38mm.
• Question 14: Maximum diameter of holes in timber floor joists during construction, as per building regulations, is 1/6 of the depth of the floor joist.
• Question 15: When bending copper pipe using the spring bending method, the pipe is opened slightly after initial bending to correct angle and remove ripples.
• Question 16: A new hacksaw blade should be installed under tension with teeth facing FORWARD for frame type hacksaws.
• Question 17: Vertical pipe fixings on a 15mm copper pipe are 1800mm apart, and horizontal ones are 1200mm.
• Question 18: Use clean dustsheets to protect furniture during boiler removal.
• Question 19: A clerk of works acts on behalf of the customer to ensure the contractor complies with the specification.
• Question 20: Quantity Surveyors take responsibility for company safety policy, measure materials, and deliver tools and equipment.
• Question 21: "Tracking" or "spiralling" when cutting copper tube occurs when the cutter is over-tightened, the pipe is the wrong temper, the tightening mechanism is damaged, or cutter wheel isn't aligned with the pipe.
• Question 22: Regular hydraulic oil level checks are essential on threading machines, pipe benders, pillar drills and electrical hacksaws.
• Question 23: Local Water Company must be notified when draining a domestic hot water system or disconnecting from drainage system.
• Question 24: Manufacturer's technical literature will list replacements parts of system and controls.
• Question 25: Maintenance schedules, detailed systems information, installation plans and lists of approved contractors are essential when dealing with commercial customers.
• Question 26: Liaison with a customer about cold water isolation in a shop should happen before the work begins.
• Question 27: Reinstallation of a bathtub, bidet or shower tray might be done on the same day of replacement.
• Question 28: Before servicing hot water tanks where plasterer is working, the plumbers need to ensure sufficient water supply is available, or make use of replacements.
• Question 29: Maintenance records should include water undertaker name, first aid box locations, and property information, along with fire safety procedures.
• Question 30: When connecting a new bathroom extension, the mains pipework should be connected as the last item of work, ensuring the supply is turned off during the duration of the work.

Subtopic: Dimensions and Measurements

• Figure 1: Diagram shows a copper pipe with a 90-degree bend, dimensions A and B, and calculated bend radius
• Question 11: Calculations demonstrate the overall length of the bent copper pipe.
• Question 12: Calculations of the length of piping required between two tee fittings.
• Question 13: Maximum depth of cut in 180x50mm joists.
• Question 17: Dimensions for vertical and horizontal pipe fixings on 15mm copper pipe are given; 1800mm vertical and 1200mm horizontal.