NGA 29/30 Repairing a Distribution Pipe Practice Test

These questions are part of the practice quiz. Start practicing

• Why is it important to use primers when solvent welding PVC?
• What does MAOP stand for in pipeline terminology?
• True or False: The color on a coated steel pipe can vary based on the type of coating applied.
• What is the significance of pipe insulation?
• How can scratches or gouges in a pipe affect repair methods?
• What must all repaired welds undergo?
• When inspecting steel pipe for damage, what should you specifically look for?
• What function does a main shut-off valve serve?
• What process is involved in backfilling an excavation site?
• What is the main function of a pipe locator tool?
• What considerations should be taken into account before installing band type clamps?
• What does the term "pipe fitting" refer to?
• What is the main consequence of corrosion on pipelines?
• What is the first action to take if you find discrepancies in pipe information compared to company records?
• What should be checked regularly after a split sleeve is installed?
• What is a notable feature of pipe wrap in relation to repairs?
• When are bolted couplings typically used in pipeline repairs?
• What should be followed when locating the facilities in the field?
• What precaution should be taken before excavating buried distribution pipes for repair?
• According to the installation process, what must be done before centering the sleeve on a damaged pipe?
• What is the best method for repairing a cracked PVC pipe?
• Why is it crucial to check for leaks after repairing a distribution pipe?
• What can be a consequence of corroded pipes in a distribution system?
• True or False: Bare steel is less commonly found than coated steel.
• What are some common signs of a leaking distribution pipe?
• How often should distribution pipes be inspected?
• What characteristic defines a service saddle during installation?
• What is the best practice for sealing joints in a piping system?
• If you suspect a gas line leak near a water distribution pipe, what should be your immediate action?
• Which fitting is known for its wrap-around design preventing movement on the pipe?
• What should be done to the surface of the steel pipe before installing a bolted coupling?
• What is the main advantage of using PVC for distribution pipes?
• When inspecting plastic pipe for damage, which of the following should be checked?
• In the process of installing a split sleeve, what is step two?
• How does coating contribute to pipeline maintenance?
• Which of the following materials should be removed from the surface of the pipe before installation?
• What is the typical pressure recommended for pressure testing repaired pipes?
• What does the term 'solvent welding' refer to in pipe repair?
• What is a primary characteristic that differentiates coated pipes from bare pipes?
• True or False: Most applications of pipe wrap involve the use of approved epoxy coated tape systems.
• What is an important safety measure when working with pipe repairs?
• What is an important step when installing a repair clamp onto a section of steel pipe?
• Which method is effective for repairing small holes in metal pipes?
• Art Burns must be repaired or removed if the pipe has hoop stress of what percentage or more?
• Which change occurs in cast iron pipes under graphitization?
• What visual defect might indicate a problem with a coating on a gas pipe?
• What does cathodic protection aim to control?
• What is the correct procedure for cleaning a pipe joint before applying a repair?
• When should a pipe clamp be utilized during maintenance?
• What does an actuator respond to in pipe systems?
• How can one determine if a pipe is beyond repair?
• What does the term graphitization refer to in materials?
• True or False: Polyethylene pipe is commonly used today in distribution systems due to its corrosion resistance.
• What is encapsulation most effective for in pipe repair?
• What role does manufacturer guidance play in split sleeve installation?
• Gas will not flow from a point of lower pressure to which condition?
• Before repairing a section of steel pipe, which of the following should you know?
• When joining cast-iron and coated steel pipes, what is the recommended method?
• Pounding out is not considered an acceptable form of what in repairing steel pipes?
• What is a possible consequence of ignoring leaks after a pipe repair?
• What is meant by corrosion in materials?
• What is the purpose of properly installing a split sleeve?
• What should be done if the coupling is not free of dirt during installation?
• Excessive static electricity can lead to what hazardous condition?
• When can a pipe repair epoxy tape system be used to fix a leak?
• What can occur if water accumulation is not properly managed during repairs?
• What is a common hazard when a pipe has been leaking for an extended period?
• What does a bell joint leak clamp consist of?
• What should be avoided to ensure worker safety when repairing pipes?
• Which type of pipe is outdated and typically not installed in modern gas distribution systems?
• What is a holiday in the context of pipeline coatings?
• What is the primary cause of static electricity in most situations?
• What is the primary purpose of repairing a distribution pipe?
• What is the initial step involved in the installation of a split sleeve?
• Which fitting uses a stainless steel band and gasket to help stop leaks?
• What type of damage can backfill material cause to a pipe?
• What is typically responsible for generating static electricity in gas systems?
• During the installation of a bolted coupling, what is done after stabbing the coupling to the mark?
• In what scenario would you use a saddle clamp?
• What action is necessary when working with older pipelines made of diverse materials?
• Which step comes immediately after the clamp has been centered over the leak area?
• What is essential to verify during the installation of pipeline joints?
• What is a kink in a pipeline?
• What is a common cause of pressure loss in a distribution system?
• Which of the following is a sign of damage when inspecting steel pipes?
• What could be a consequence of neglecting to mark utility lines before excavation?
• What requirement is associated with scratches in a pipe?
• Why is it important to identify the type of pipe material before repairs?
• How should repaired pipes be monitored after installation?
• What precautions should be taken when using clamps for temporary repairs on plastic pipe?
• True or False: The minimum pressure rating of a fitting must be equal to or greater than the maximum allowable operating pressure of the system.
• In what pattern should bolts on a bell joint leak clamp be tightened?
• Which of the following defines an acceptable mechanical fitting?
• What is a fundamental aspect of cathodic protection?
• What are examples of coating defects in pipelines?
• When should you use a tee fitting in pipe repairs?
• What is a trenchless repair method?
• What type of defects should be noted during an inspection of steel pipes?
• What is typically required for a bolted coupling?
• What is water hammer in distribution systems?
• Are full encirclement type band clamps approved for repairs in cases where the pipe maintains its structural integrity?
• Which of the following is an example of a coating defect?
• What should be minimized to ensure a proper repair on cast-iron pipe?
• Have band type clamps been effectively used for temporary repairs on plastic pipes?
• How can freezing temperatures affect distribution pipes?
• Which of the following would be an important consideration regarding pipeline installation?
• What is a repair clamp?
• What factors should you consider when deciding whether to repair or replace a section of damaged pipe?
• What is a common reason for the obsolescence of cast iron pipes?
• What type of fitting is characterized by a stainless steel band and gasket that can be used to fix leaks?
• Why is proper drainage important in a pipe repair area?
• What should be checked inside the coupling before installation?
• Which method is most effective for preventing leaks at joints in a pipe?
• True or False: A pipe that has been leaking for a long time can dry out the surrounding soil, increasing the risk of static ignition.
• What does the term 'minimum pressure rating' refer to in pipelines?
• What effect does graphitization have on a cast iron pipe?
• What is a common visual signal that indicates a distribution pipe may be corroded?
• Which cast-iron repair method utilizes an injection gun for sealing?
• What tool is used to tighten the bolts on the repair clamp?
• Which step follows the centering of the sleeve during split sleeve installation?
• What does encapsulation involve in pipeline repair?
• What is one reason water could accumulate in a pipe repair area?
• Which of the following is commonly used as a material for distribution pipes?
• What is the role of a coupling in pipe repairs?
• How can you efficiently locate a leak in a distribution pipe?
• Which of the following is a recognized repair method for cast-iron pipes?
• Which tool is best suited for cutting PVC pipes?
• A weld must be removed if it has a crack of more than what percentage of its weld length?
• Which type of pipe material allows for flexibility in distribution systems?
• What can happen if a distribution pipe is not adequately supported?
• What is the main purpose of a blow-off valve?
• What is a disadvantage of undersized piping in a distribution system?
• What does the term "sizing" refer to in regards to distribution pipes?
• What is the purpose of using a mechanical leak clamp?
• What impact does inadequate sealing have on pipeline integrity?
• Which could indicate that a distribution pipe has failed?
• Why are expansion loops necessary in long runs of piping?
• How does the use of couplings benefit pipe repairs?
• Which of the following is NOT a method to prevent static discharge?
• What is the recommended procedure to follow when performing a pressure test?
• How does soil type affect the installation and repair of underground distribution pipes?
• What is the purpose of the soap test after installing a repair clamp?
• What is the first step you should take before replacing a section of damage pipe on a live main?
• What advantage does a split sleeve offer when installed on a steel pipe?
• What is a "flow control valve" used for in piping systems?
• What is the guideline concerning the acceptability of gouges in a pipe?
• True or False: You need a fitting to repair a steel pipe, which can be determined by finding the diameter of the main.
• Maps and records provide important information about:
• Why is it necessary to check for corrosion during the inspection of steel pipes?
• Why is it important to lubricate the gaskets and grip rings during coupler installation?
• What is a suitable action for controlling a small leak in a pipe?
• Which safety equipment is suggested when repairing distribution pipes?
• What is the consequence of not removing rust from pipes before repairs?
• What is the likely result of excessive gas turbulence in a pipeline?
• Mechanical leak repair clamps installed after what date may not be used as a permanent repair method for plastic pipes?
• What type of fitting includes a grip ring, gasket, middle ring, and bolt and nut?
• Which type of pipe is typically found in older gas distribution systems that is no longer installed?
• What aspect of pipe systems does an actuator primarily adjust?
• What describes a threaded connection in plumbing?
• What is the first step in installing a bolted coupling on a steel pipe?
• What is a recommended practice after making a temporary repair on a plastic pipe?
• What is critical to ensure when verifying location for repair?
• During a visual inspection, what might indicate the need for further examination of a pipe?
• What maintenance practice ensures the integrity of distribution pipes over time?
• What aspect should be prioritized when repairing a pipeline?
• Which type of pipe is typically yellow or black in color?
• Which action is performed after marking the end of the pipe during bolted coupling installation?
• Is it preferable to replace a damaged section of a plastic pipe rather than making permanent repairs like fixing a leaking joint?
• What is the most common method to verify the field location of a pipe before repair?
• What does SMYS stand for in pipeline terminology?
• Which repair method involves enclosing the original piping system?
• What factor should be considered during the pressure testing of pipes?
• What does "flushing" a system entail after repairs?
• What should you do during the second step of installing a repair clamp on steel pipe?
• How can one verify that the correct segment of pipe is being repaired?
• Which of the following methods is NOT effective in stopping leaks in distribution systems?
• What is anaerobic sealing in the context of pipeline repair?
• Which of the following is a component of a successful repair on a live main?
• What aspect of equipment operation is critical to prevent pipe damage?
• What type of environment does anaerobic sealing require for its process?
• What should be done if the pipe surface is heavily rusted before repairs?
• What is the final step in the installation of a split sleeve?
• Which material is recommended to replace a section of cast-iron pipe?
• When using mechanical fittings for pipe replacement, what must be ensured?
• What should be done with damaged sections of a pipeline?
• What should be performed regularly to ensure the integrity of distribution pipes?
• What type of fitting is commonly used to connect pipes at an angle?
• What is the first step when installing a repair clamp on a steel pipe?
• What is the primary function of an actuator in pipe systems?
• When is the appropriate time to apply a protective coating during the repair process?
• What happens if there are cuts in a pipeline?
• What may be required to stop the flow of gas during repairs?
• What is a potential safety risk when repairing pipes without proper drainage?
• What is a critical step after installing a repair clamp on a steel pipe?
• What is the primary purpose of backfill in excavation work?
• What is the implication of using improper glue on PVC repairs?
• What is the purpose of applying a soap solution when installing a repair clamp?
• If a plastic pipeline segment has a gouge or scratch deeper than what percentage of the pipe wall, it must be repaired?
• What advantages does PEX provide for distribution pipes?
• What does "thermal expansion" in the context of pipe repairs signify?
• Why is it important to follow local codes and regulations when repairing distribution pipes?
• Which of the following is NOT a potential cause of pipe damage?
• What should be done before performing a soap test on a newly installed split sleeve?
• Which of the following tools can contribute to pipe damage?
• What is a saddle fitting used for?
• What is a key consideration to keep in mind when repairing cast-iron pipes?
• What does "pressure testing" involve in pipe repairs?
• What is the primary purpose of a pipe joint compound?
• Which of the following indicates a likely need for repair in distribution pipes?
• What is a key factor about cast iron pipe in modern usage?
• What is the most common method for inspecting the exterior of a pipe for damage?
• What tool is used for tightening pipe fittings?
• Which of the following best describes the role of anaerobic sealing?
• What is the function of an expansion joint?
• True or False: Cast-iron pipe does not require any supplemental support during repair work.