NCCER Pipefitting Level 2 Practice Test

These questions are part of the practice quiz. Start practicing

• What is an important consideration when running pipes through walls?
• What is a primary benefit of proper piping design in the construction of a plumbing system?
• What does "ANSI" stand for in reference to piping standards?
• What does the term “pipe alignment” refer to?
• In pipe fitting, what does "back-purge" refer to?
• What tools are necessary for threading pipe?
• Describe the term "pigging" in the context of pipe fitting.
• Which factor does NOT affect friction loss in piping?
• What principle does a gravity flow system depend on?
• What characteristic makes most pipes resistant to chemicals?
• What does "hydrostatic testing" primarily involve?
• Which characteristic is notable about PVC pipes?
• Which of the following materials is most likely to weaken under extreme temperatures?
• What type of information can typically be found in pipe specifications?
• What is a common application for iron alloy pipes?
• How many basic types of cast iron soil pipe are available?
• In which scenarios is "soldering" commonly used?
• When should you use a pipe bender?
• What is the main purpose of using insulation on pipes?
• What is a characteristic feature of threaded joints?
• What is the primary purpose of a valve in a piping system?
• What does the "hydraulic pressure test" assess in piping systems?
• What is a solvent cement used for in pipefitting?
• How much water is typically added per sack of cement for mixing mortar?
• Which of the following is a significant benefit of using plastic pipe in construction?
• The ability to resist breaking while being pulled or stretched is known as what?
• What influences the choice of pipe materials in a plumbing system?
• What is recommended to use in a threaded joint to prevent leaking?
• What type of valve is typically used to prevent backflow in a pipeline?
• What is the primary use of a lever tool in pipefitting?
• What does the term “diameters of concrete pipe” refer to?
• What is NOT a characteristic of HDPE pipe?
• What hazard is associated with working around high-pressure pipes?
• Why is training important in pipefitting?
• What is important to consider when storing pipes before installation?
• What is the strongest and most permanent type of joint in pipefitting?
• What kind of fittings are used to change the direction of pipe flow?
• What do larger class numbers of ductile iron pipe indicate?
• What is the function of a pipe hanger?
• What impact does fluid velocity have on pipe sizing?
• What role does an "oil tank" play concerning pipe fittings in a system?
• What is required when mechanically pulling polyethylene pipe?
• What auxiliary item is always placed between layers of stacked pipe?
• What is the primary concern when working with chemical piping systems?
• What is the purpose of using a pipe bender?
• Why are control valves critical in piping systems?
• What technique may be used alongside thrust blocks in piping systems?
• What does a "Tee fitting" accomplish in a piping system?
• Which of the following is essential for ensuring a leak-proof threaded joint?
• What type of information is typically found in piping catalog data?
• What characteristic of ductile iron pipe describes its ability to bend without breaking?
• What does the term “backflow” mean?
• What type of fittings would typically be used to connect two pipes at a right angle?
• What does the term “hydraulic” refer to in pipefitting?
• What material is commonly used for creating flexible hose connectors?
• What are the safety precautions when working with pressurized pipes?
• Which characteristic makes PVC piping a preferred choice for various applications?
• What might be a sign that a piping system needs maintenance?
• What is the function of tapered thread sealing in a piping system?
• What is the maximum torque that screw clamps should be tightened to for securing pipe joints?
• Define "fitting allowance."
• What is the primary advantage of using PVC pipes?
• What is the purpose of a pressure gauge in a piping system?
• What is a major characteristic of concrete pipes?
• What thread type cannot be used with ductile iron pipe because it may pull out?
• What does “CPVC” stand for?
• What is a union in pipefitting?
• What are the primary types of materials used in pipefitting?
• When lifting pipe, what tool helps connect multiple segments securely?
• What is a common method for sealing threaded piping joints?
• What does the term "vent piping" refer to?
• What is a blow-off valve used for?
• Which of the following is a common type of pipe joint?
• Why might one prefer copper piping over plastic piping?
• What kind of data might you expect to find in a piping catalog?
• What type of joint is commonly used to install cast iron and ductile iron pipes?
• What type of fittings would you use for applications requiring frequent disassembly?
• What is the purpose of using support brackets in a piping system?
• How is the radius of a fitting described?
• What is the primary job of a pipe fitter during a construction project?
• When performing a piping installation, why is it crucial to provide adequate clearance around the pipes?
• What is the standard schedule for most piping systems?
• In pipefitting, what does the term “Tee” refer to?
• Which type of pipe requires special solvent cement for installation?
• Why is it important to properly support and anchor pipes?
• What is a common advantage of using CPVC piping?
• What is the maximum temperature at which adhesives should not be heated?
• What phenomenon occurs when water flows upward into the bottom of a cut due to a high water table?
• Which type of concrete pipe is most commonly used?
• For what reason might copper pipes outperform plastic pipes in certain applications?
• What is the primary purpose of pipe fittings?
• What is a key reason for performing leakage testing?
• What is an essential component when piecing together a gasket?
• What is a common cause of pipe corrosion?
• What is the significance of using isometric drawings in pipe fitting?
• What is the main purpose of a shut-off valve in a piping system?
• What is a common use for flexible hose connectors in piping?
• What type of pipe construction contains trapped air within its walls?
• What shape does a 45-degree elbow fitting create?
• Which material is typically used to improve sound insulation in piping systems?
• What supports the load of the pipe once backfilling is completed?
• What is the primary function of a fitting in plumbing systems?
• How is the size of a pipe typically measured?
• What is a coupling in the context of pipefitting?
• Why is alignment crucial when assembling piping systems?
• What is a disadvantage of cast iron soil pipes?
• What does "CPVC" stand for in piping materials?
• What does the term "fitting" refer to in the context of pipe systems?
• Which types of systems might a pipe fitter be involved with?
• Why is it crucial to seal around openings when running pipes through walls?
• What type of coating is used to give ductile iron pipe a flat, black appearance?
• Which of the following are common types of pipe joints?
• What type of piping system is designed to allow flow without being pressurized?
• Which standard is commonly used for gas piping installation?
• What might excessive resistance during gasket installation indicate?
• What is the potential effect of improper pipe alignment?
• What is a notable advantage of trenchless pipelaying methods?
• In pipefitting, which of the following details may be included in piping design specifications?
• Which of the following is true regarding the installation of pipe in sandy soils?
• Which type of connection is generally considered the most secure for seamless water flow?
• What are two common methods of joining metal pipes?
• What type of pipe is reinforced with a steel cage inside?
• What does the term “schedule” refer to in pipe specifications?
• Which wall thickness is indicated by 'STD' in pipe schedules?
• What type of plumbing material often offers smooth flow due to its design?
• What are the main advantages of using stainless steel pipes?
• What is used to secure joints in plastic pipe?
• What is a characteristic advantage of non-metallic piping materials?
• How is service weight cast iron pipe marked?
• What is the first step in installing compression joints for ductile iron pipe?
• What is the significance of pipe insulation in a piping system?
• What property describes a material’s ability to withstand deformation under load?
• What type of testing is required before placing a piping system into operation?
• What does the term "torque" refer to in pipe fitting applications?
• In a piping system, what does a riser do?
• Which material is commonly used to manufacture ABS pipes and fittings?
• Why is it important to consider the viscosity of a fluid when designing a piping system?
• What determines the load that a pipe must support after backfilling?
• Why is it important to wear proper personal protective equipment (PPE) during pipe fitting?
• What is a recommended tool for cutting metal pipes?
• What does the term “PN” signify in pressure ratings?
• What is the common abbreviation for galvanized iron pipe?
• What is the purpose of a trap in plumbing systems?
• What is the ideal mixing ratio for mortar?
• Which method is essential for ensuring the stability of pipe fittings?
• Which type of fitting is typically used to make a straight pipe connection?
• What is a common feature of a "buttweld" fitting?
• What does the acronym NCCER stand for?
• What tool is considered best for cutting fiberglass pipe?
• What is a notable feature of bell and spigot pipe?
• What is the purpose of a valve actuator?
• How can vibration be reduced in piping systems?
• What type of pipe is most commonly used for residential water supply?
• How do you calculate the bend radius for a conduit?
• What does the term "flange" refer to in piping?
• What type of valve is commonly used to control flow in a piping system?
• What is the primary purpose of pipe insulation?
• What is a potential issue when using flanged joints in severe conditions?
• What type of cut is necessary for ensuring good joint integrity in plastic pipes?
• What can be a consequence of neglecting maintenance on piping systems?
• In which scenario would a blow-off valve be essential?
• What does a "schedule" refer to in pipefitting?
• What is the purpose of a valve in a piping system?
• What is the significance of "drainage pipe slope"?
• What are the two wall thickness options for bell and spigot cast iron pipe?
• What are expansion joints used for in piping systems?
• What type of joint is commonly used for joining metal pipes in pipefitting?
• How is the term "system pressure" used in context to pipe systems?
• What is a common method for joining metal pipes?
• What indicates inadequate application of cement around the socket edge?
• What does the term “wye” refer to in pipefitting?
• How does the material of the piping affect the choice of welding method?
• What type of bonding is achieved through the process involving epoxy resin and hardener?
• Why is matching the weights of fittings critical for bell and spigot cast iron soil pipe?
• What does "XXS" in pipe nomenclature refer to?
• What does “NPS” stand for?
• What type of joint is typically used for joining hubless cast iron pipes?
• Which tool is commonly used to cut pipes?
• What method is often used to replace aging plastic or clay pipes?
• What is the primary function of a "saddle" in pipe fitting?
• How is leak detection commonly achieved in piping systems?
• What is the function of a pipe hanger?
• Which type of pipe is mainly used for corrosive waste that permeates the entire thickness of the metal?
• What is the primary purpose of designing a piping system with expansion joints?
• Which tool is commonly used for measuring the diameter of pipes?
• How can leaks be identified in a pressurized pipe system?
• Why is it crucial to conduct regular maintenance on piping systems?
• What is the purpose of pipe insulation?
• What advantage do flanged fittings provide in a piping system?
• What type of pipe is typically used for commercial above-ground service systems?
• What is a common size range for ductile iron pipes?
• What is an essential characteristic of CPVC in plumbing?
• What is a critical consideration when designing thrust blocks?
• How is "friction loss" calculated in pipe fittings?
• What is a common method used for cutting pipe in the trench?
• What is a common effect of improper pipe fitting angles?
• What type of joint is most commonly used for joining pipe sections?
• Which type of joint is commonly used for connecting metal pipes?
• What kind of fitting is used to transition from a larger pipe to a smaller one?
• What is the main purpose of vent piping in plumbing systems?
• What safety equipment is recommended for cutting metal pipes?
• What type of pipe is commonly used in systems with no heat or pressure concerns?
• What is the correct procedure for setting a torque wrench?
• Which method is considered ineffective for pushing pipe home in certain soil types?
• What type of joints are not used in areas subject to excessive vibration?
• What tool consists of a large steel hook that is used to lift pipe from one end?
• What is a common application for dovetail gaskets?
• What is the purpose of excavating bell holes at each pipe joint?
• What is the importance of proper fitting angles?
• What is the term for the process of adjusting the length of a pipe to fit into a system?
• What is a common term used to describe the various wall thicknesses of plastic pipes?
• How are pipe fittings classified?
• What type of gasket is characterized as a flat gasket cast into place during manufacturing?
• What ensures the proper assembly of a belt in pipe fitting?
• Which type of cast-iron pipe is designed to be acid resistant?
• What is the purpose of a memory mark in pipe assembly?
• Which of the following materials can serve as a lubricant for gaskets?
• How does temperature affect the performance of piping systems?
• What can happen if cast iron soil pipes are mishandled?
• What describes the term "non-metallic pipe systems"?
• What is the primary purpose of a pipe hanger?
• What factors affect the selection of piping materials for a project?
• What occurs when epoxy resin is mixed with a hardener?
• What type of tools are critical for the process of installing bell and spigot cast iron pipe?
• Which application would likely require the use of bronze fittings?
• What term describes the methods of burying pipelines that do not require digging trenches?
• In pipe fitting, what does "P.I.P.E." stand for?
• What does the acronym "NPT" stand for in piping systems?
• What element is commonly assessed when calculating friction loss?
• How should pipe be stored to keep the bottom layer off the ground?
• Which tool is primarily used to measure the diameter of a pipe?
• How should a gasket be placed on the plane during installation?
• What should a pipefitter consider when selecting materials for a project?
• What is the function of a valve in a piping system?
• What does the acronym “MSDS” stand for in handling hazardous materials?
• What type of pipe is primarily used in drainage systems?
• What characteristic of traps is essential for their function in plumbing?
• Why is it critical to follow the correct thread engagement in pipe fittings?
• What is the difference between a relief valve and a pressure regulator?
• What documentation is critical during pipe fitting projects?
• Which of the following statements is true regarding hydrostatic testing?
• How is wall thickness determined in carbon steel pipe?
• What process is used to create a leak-tight seal in threaded metal pipes?
• Which type of joint is often used for temporary pipe runs?
• What does the term "piping design" encompass?