Common Plumbing Processes Practice Test

These questions are part of the practice quiz. Start practicing

• What steps should be taken to locate and protect existing underground utilities before trenching?
• Which phase includes sanitary ware, bathroom suites, hot water vessel, boiler and radiators, kitchen utilities, and sink unit?
• What are common indicators that a drainage system requires venting or additional venting?
• Which safety rule is correct when using wood chisels?
• How does a drain-waste-vent system ensure trap seals remain functional during flush cycles?
• Which jointing method is commonly used for joining polyethylene pipes?
• In drainage system design, what does a fixture unit represent?
• Which statement is true about pipe grips and wrenches?
• What is a cross-connection, and why must it be avoided?
• For what type of fitting would the application of solder wire during the jointing process be required?
• What is the difference between a trap adapter and a trap primer?
• Copper tube is specified in three tables; the most common table used for hot and cold water supplies would be:
• What is the primary purpose of using corrosion-resistant screws in plumbing fixings?
• What must be done before beginning work to replace a bathroom suite?
• In moisture-prone indoor environments, which screw material is commonly used?
• During post-rough-in testing, what is the recommended approach to testing and documenting results?
• When using a power saw, keep guard in place.
• Why is the internal nominal bore deducted from the measurement when planning a bend length?
• Which guideline emphasizes using the right tool for the job?
• In PVC solvent-welding prep, what step comes immediately after cleaning both surfaces with cleaner?
• Why is it important to call before you dig and locate buried utilities before trenching for underground pipes?
• If you are self-employed and a job cannot be done to specification, what should you do?
• Push-fit joints with an O-ring are restricted to which piping applications according to the material options?
• In low carbon steel pipe bending, which fault is commonly caused by incorrect marking out?
• How should trap arms be vented, and what is meant by the maximum trap-to-vent distance?
• Which practice is correct when using a hacksaw?
• Which item is listed among typical measuring and marking out tools?
• What is the typical trap seal depth in common traps?
• Which of the following is a safety precaution when using any power tools?
• When creating access in a boarded floor, which approach helps ensure the cut aligns with joists?
• What are the two main materials used for fittings to joint low carbon steel (LCS)?
• Proper drainage slope for floor drains helps prevent which condition in wet areas?
• What fixing would be used on plasterboard stud partitions?
• What describes the methods used for bending copper and low carbon steel tubes?
• Blue polythene water supply pipe must not convey anything other than wholesome drinking water.
• Which tool is specifically used for soldering joints in the jointing section?
• Which tool is used for fixing and making good?
• In the general tool checklist, which action is specifically recommended for maintaining files and rasps?
• Which springs are available to protect tube integrity during bending?
• Which color indicates Cold Water Service Pipes?
• Where can guidance on drilling of timber floor joists to accommodate water systems pipework be found?
• Which service-condition factor must be considered in pipework design?
• What is the maximum distance from a wall that the above joist can be notched?
• PAT tests are maintenance records used to ensure that all portable electrical appliances are in good, safe working order.
• How is a PEX pipe properly installed using crimp fittings?
• Which statement defines First Fix?
• Which of the following is an advantage of bending pipe instead of using fittings?
• What is the primary function of a vent stack in a building's drainage system?
• What is the final sequence of operations after completing a rough-in installation, before finishing walls?
• Which is a safety precaution when using any power tools?
• Which statement about a P-trap is true?
• In drainage design, fixture units are used to determine which two aspects of the system?
• What is the recommended sequence for locating and protecting underground utilities before trenching?
• Which statement is true about Type L copper tubing relative to Type M?
• Which cordless drill kit is listed in the material?
• Which document confirms that a quotation has been accepted?
• Which action reflects proper attention to supporting pipework?
• What are the two main types of clips used to fix pipework?
• Which statement is true about hammers?
• Which of the following is an example of a push-fit fitting?
• In cutting a trap in a boarded floor, which method is used to cut through tongue and groove?
• Hand tube benders can be used to bend copper tube with diameters between
• What mechanism causes solder to spread around a solder ring fitting when heated?
• Permeation refers to what in the context of water supply piping?
• For offsets, if the pipework isn't set up level in the machine, what will the offset be?
• Which safety measure helps protect surrounding materials when soldering copper piping with a torch?
• Due to elasticity of the metal, what adjustment is described when bending copper to 90 degrees?
• Which temperature considerations must be taken into account when selecting materials for domestic plumbing systems?
• Compared to elbow fittings, bending pipe produces bends with what characteristic?
• Which factors influence vent diameter requirements for a multi-story building?
• What is the correct sequence for prepping PVC pipe joints before solvent welding?
• Ageing, fatigue, durability and other mechanical factors are considerations when evaluating what aspect?
• Which of the following is NOT listed as a common plumbing fixing?
• What best describes the rough-in stage in plumbing installation?
• Which maintenance action is recommended for pipe cutters?
• Why is insulation important for hot water supply lines and cold lines in unheated spaces?
• Which statement is a direct consideration about water quality when selecting plumbing materials?
• Under Job Specifications, which item is included?
• Which procedure best describes how to test a newly installed toilet for leaks and proper operation?
• What material is commonly used for vent piping in residential systems?
• Compare solvent welding to mechanical joining for plastic piping.
• What safety precautions are essential when soldering copper pipe?
• When crimping PEX with fittings, what is the goal of the crimping action?
• Which of the following is NOT a measuring and marking out tool?
• What color are Domestic Central Heating Pipes?
• End feed fittings differ from solder ring fittings because:
• Which statement best reflects the required slope for drainage in DWV systems?
• Second Fix includes which item?
• Which step should be performed after cutting the threads on an LCS tube for a threaded elbow?
• Which color is not used for underground pipework colour coding described?
• Why would an expansion tank be installed on a closed hot water heating system?
• What is the primary purpose of proper shower pan slope and drain alignment?
• What action helps prevent rust after cleaning tools?
• Which factor determines the allowable material for underground water service lines?
• During bending, why is a line marked on the pipe at a distance from the fixed point where the center line of the finished bend will be required?
• Which of the following is a preparatory step mentioned for achieving a 90-degree bend in LCS?
• What is the function of a Wye (Y) fitting in drainage?
• After cutting the threads in the tube when joining to an elbow, what is typically done next?
• Which tool is used for cutting?
• For offset copper, what is the first step in the process?
• Which mechanical factor should be considered in pipework design?
• Which color indicates Domestic Natural Gas?
• Which statement best describes selecting a fixing device?
• Which guideline addresses oiling frequency?
• How are screws specified in standard practice?
• What determines the required pipe size in drainage systems?
• Which step is part of filling and purging air from a new hot water heater installation?
• Which tool is used for fabrication?
• What is the purpose of a toilet wax ring?
• Which term refers to a plastic piping material commonly used in domestic plumbing?
• What is the function of a pressure-reducing valve on a domestic water supply?
• Steel countersunk screws would be used to fix which component to a concrete block wall?
• According to the general maintenance checklist, which item should be done regularly?
• What is the purpose of a P-trap in a sink or basin?
• Three main materials used for new domestic plumbing installations are:
• How is the fixture unit count used in sizing a drainage system?
• Which action should be taken when pipe wrench teeth wear?
• Chrome plated pipe is most likely used in which scenario?
• In estimating a one-off installation, how many stages are typically required?
• What is a trap primer and why is it typically required?
• Which of the following is NOT a reason to insulating hot water and cold lines in unheated spaces?
• What is the purpose of de-burring and chamfering the end of an LCS tube before threading?
• Outline the steps for soldering a copper pipe joint.
• When cutting a trap in a boarded floor, which cut should be made to align with joists where possible?
• Which statement is true about cold chisels?
• Where should cleanouts be accessible and what is their typical location?
• What testing method is commonly used to verify DWV installations after installation?
• Which document confirms that payment has been made?
• How is drainage pipe size generally determined from fixture units?
• How does proper venting affect multi-fixture bathroom drainage performance?
• Before leaving, what should you ensure the customer has received or understood?
• What color are Domestic Hot pipes?
• Which statement best describes the two main types of compression fittings used for joining pipes?
• If a bathroom cannot be installed as per the client's original specification, what should a plumber do?
• Which practice is described by working as part of a team and giving notice when your work may affect others?
• Vent sizing for a multi-story building is influenced by several factors. Which of the following best reflects those factors?
• Common types of fixings used in plumbing installations include which of the following?
• Which is a key safety practice when using a torch on copper piping?
• Which description correctly contrasts a sanitary tee with a combo fitting?
• Compare Type L and Type M copper tubing.
• What considerations should guide the selection of tools and materials during a rough-in?
• Which statement best describes the function of the temperature and pressure relief valve on a water heater?
• Which statement best describes screwdrivers for slotted screws?
• Which statement best describes a solder ring fitting used in copper tube jointing?
• When selecting materials for domestic plumbing systems, which factor is particularly important?
• Which organization provides guidance on drilling timber floor joists for pipework?
• What is the maximum tube diameter that bending springs can protect during bending?
• Estimating on one-off new installations will be carried out in how many stages?
• What is the purpose of a backflow prevention device?
• Which of the following is a fixing type listed for plasterboard installations?
• Which component connects a trap to the drain?
• What type of machine is needed to bend low carbon steel tube?
• Which two national plumbing codes are most commonly referenced for residential plumbing, alongside local amendments?
• When preparing to joint a length of LCS tube to an elbow without a powered threading machine, which step should be done first?
• Which problem is prevented by proper venting in a multi-fixture bathroom?
• What is the primary difference between a sanitary tee and a combo fitting in drainage work?
• What materials are commonly used for vent piping in residential systems?
• What is the minimum distance from a wall that the above joist can be notched?
• Which item is used to create holes in materials during drilling operations?
• Why are sanitary cross fittings discouraged in drainage systems, and what should be used instead?
• Why are sanitary cross fittings discouraged in drainage systems, and what fittings are preferred?
• Which joint method is commonly used to join PVC-U pipes?
• What is true about Second Fix relative to First Fix?
• Hard bending machines can be used to bend copper tubes with diameters of up to how many millimeters?
• Which of the following is a type of drill mentioned for drilling holes?
• What step is essential for pipework fabrication before bending?
• Which item is included in electrical safety considerations during preparation?
• On a push fit fitting, the O ring is made from neoprene. True or false?
• Which statement is true about screwdrivers?
• What information should be left with the customer after installation of a new boiler?
• What document confirms the number and type of items delivered with materials?
• Where must non-wholesome piping be distinguished?
• Which method is appropriate for joining PVC DWV piping?
• What is used to support the tube walls during the bend to protect their integrity?
• What slope is required for proper drainage in most DWV systems?
• Which document should be left with the customer after installation of a boiler?
• Which tool is categorized under Power Saws?
• Which statement best describes the testing method most commonly used to verify DWV installations after installation?
• What type of fixing would be used on plasterboard stud partitions?
• Why is proper drainage slope critical for floor drains in wet areas?
• Which statement best describes a consideration to ensure future maintenance during rough-in?
• When threading an LCS tube for a threaded elbow, how many threads should extend beyond the end of the fitting?
• On a large work site, progress of other trades can be checked by referring to the
• If a job cannot be done to specification and you are employed, what should you do?
• Which statement is true when replacing pipe cutter wheels?
• What is a water hammer arrestor and when is it needed?
• Why is a cleanout required in a drainage system and where is it typically located?
• Which safety precaution is important when using a power saw?
• What is the recommended process for performing a post-rough-in leak or pressure test on a water system?
• In drainage design, fixture unit count determines which of the following?
• Which fixing is suitable for plasterboard stud partitioning?
• Define a push-fit fitting and give an example.