NCCER Pipeline Corrosion Control Practice Test

These questions are part of the practice quiz. Start practicing

• Which of the following is not true of hazardous gas?
• What is the most likely cause if all of the flange bolts in an insulated flange show high resistance?
• Before installing bonds to eliminate stray current interference, individuals must have knowledge comparable to which certification level?
• What is the preferred type of test station mounting?
• What is the primary purpose of conducting regular pipeline inspections?
• To determine when an installed bond has been properly adjusted, a technician should use which of the following?
• Signs should be located directly over the pipeline if possible but offset __________.
• Markers must be maintained and are routinely inspected for damage, displacement, vandalism, and _______.
• Outdated maps, survey records, and drawings are likely to provide what?
• Galvanic anode banks help ensure the electrical potential of the pipeline is what in relation to the surrounding earth?
• Internal shunts are used to measure values up to ______.
• If there is AC input but no DC output when attempting to obtain a reading from a rectifier, the appropriate response is to ________.
• If the difference in the structure to soil potential for the structures being tested is 100mV or higher, what does this indicate?
• What may happen if pipeline signs are inaccurately marked?
• What type of safety device is critical for preventing hazardous gas release?
• When a power outage occurs, the appropriate pipeline personnel should contact _______.
• What is the required length/tang width for applying a bolt pad over a bolt?
• The reading on the instrument measures what?
• All signs need to have a _______.
• Positive response is a communication with the excavator prior to excavation to ensure that ________.
• What is the number of wires that are typically inserted into the ground in a common test setup?
• A terminal block should have solid brass studs with a minimum of what diameter?
• What is the first action to take when an unexpected hazardous leak is detected?
• By definition, an AOC is a condition that may exceed _________.
• What is the first step in verifying test lead continuity?
• Before excavators begin work, what must they have in terms of pipeline location?
• What are the two major components of an electromagnetic locator?
• Which group is responsible for the placement of temporary markers on pipeline sites?
• Which device is used to provide both lightning and surge protection for pipeline fittings?
• Which factor can affect the quality of a weld?
• One characteristic of a typical rectifier unit is that it _________.
• When measuring structure to soil potential it is important to review the readings as they are taken to ensure that they are...
• When dealing with hazardous materials, proper labeling is important because it ________.
• The task of obtaining voltage and current output readings from a rectifier begins with __________.
• Which device is used to connect a reference electrode to the structure?
• Temporary marker selection may depend on existing and expected conditions such as weather, traffic, construction and ________.
• What is one acceptable means of attaching test leads and bond cables when installing a resistance bond?
• What must be present for an impressed current system to work effectively?
• If a high current density is flowing from a well-coated line through the soil and onto a bare foreign line, what could result?
• The final step in any procedure for conducting a close interval survey is to ___________.
• What is the acceptable range of resistance for properly installed grounding cells?
• A pipeline's maximum allowable operating pressure is critical for ensuring what?
• Which of the following is true with regard to rectifiers?
• Burn through the pipe wall during thermic welding may cause...
• Fire extinguishing equipment can be used on an incipient fire - true or false?
• What purpose does a voltage meter serve in corrosion control?
• Permanent markers are installed to indicate _______.
• Prior to adding the weld charge to the graphic mold, _______.
• The federal agency that regulates pipeline maintenance is ___________.
• New test leads must be installed where?
• What type of work requirements must personnel know when excavating to replace a damaged test lead?
• To determine the cause of a short on an insulated flange, an insulation tester can be used to check the resistance between ________.
• It is an offense to deface or destroy a pipeline marker punishable by fines up to _________.
• A type of close interval survey that measures the potential between a structure and the ground surface after the cathodic protection system current has been turned off and the structure to soil potential has stabilized is called a(n) __________.
• Compliance with which regulation is essential for pipeline maintenance?
• What is the typical purpose of cathodic protection systems?
• The most common type of electrode in a pipeline CP system is the _____________.
• When a foreign structure is located near a pipeline that is protected by CP, the structure might:
• A CP system turns the pipeline surface into a _____________.
• Pressure relief systems, tank level alarms, and mainline pressure shut down alarms are examples of __________.
• When a power interruption occurs, personnel may keep the pipeline operating by adjusting the ________.
• What type of detector would you rely on to identify temperature changes in a hazardous environment?
• Which of the following is a reason that personnel should not rely on their sense of smell to detect hazardous gas release?
• What should be the immediate response after noticing a persistent hazardous gas leak?
• If a shunt has a millivolt rating of 50mV and an amperage rating of 30A, what is the shunt factor?
• What does the normal gauge of a general test wire depend on?
• What type of alert might indicate an issue during a conductivity test?
• When making an exothermic weld, no sleeve is required for wires _______.
• What is the primary purpose of pipeline documentation?
• What does MAOP stand for in pipeline operations?
• If personnel communication tools fail, personnel should first _________.
• What is a sign that continuity does not exist when testing leads?
• What is the purpose of pressure relief systems in pipeline operations?
• One of the AOCs that a pipeline technician might encounter during a bond test is ________.
• The selection of temporary markers should align with which key aspect?
• What measures can be taken to minimize the risk of pipeline corrosion?
• When interference is found during interference testing, the AC current mitigation process should begin with ________.
• Stray current corrosion damage to an underground structure caused by a cathodic protection system on another structure is commonly referred to as _________.
• The basic goal of a CP system is to ____________.
• If SCADA systems fail, what type of response is required?
• During a conductivity test, an audible alert indicates what condition?
• In a cathodic protection system, what is the role of the sacrificial anode?
• Before taking measurements during a bond test, a pipeline technician should first:
• What is the communication process termed that ensures pipeline safety before excavation?
• When an unexplained flow rate or pressure change occurs, field personnel may need to _______.
• The cost of troubleshooting CP on pipeline systems can be significantly reduced when gas utilities and pipeline companies locate contacts with foreign metal structures by:
• What type of excavation is only permitted within a tolerance zone?
• Which of the following systems relies heavily on the principles of galvanic corrosion protection?
• In which conditions might the installation of temporary markers be adjusted?
• Why is it important for markers to be properly maintained?
• The final step in any procedure for measuring structure to soil potential is to _________.
• Before using a fire extinguisher it is important to know its...
• A close interval survey that is used to establish a baseline for determining how much CP is needed for a structure is ________.
• If extensive internal or external piping corrosion is found prior to measuring structure to soil potentials, a pipeline technician should ________.
• When insulating a butt-spliced crimp connection, what must be verified about the tubing?
• After a lead is repaired or replaced, what must be verified?
• Safety devices include ______.
• Natural occurrences of stray current in the earth that are transferred to the protected pipeline are referred to as what?
• What is the recommended distance marking relative to the pipeline?
• Which factor is essential for ensuring the accuracy of temporary marker placement?
• If SCADA fails, equipment may have to operate manually by ________.
• What is the final step in performing a mechanical bond?
• Which of the following components is critical for the corrosion control of pipelines?
• The ANSI uniform color code for marking underground hazardous liquid and gas pipeline facilities is __________.
• What is typically used to ensure physical protection for electrical connections in outdoor tests?
• Which of the following is a possible consequence of failure to maintain pipeline integrity?
• When the Wenner method is used to test soil resistivity, the resistance measured by the test instrument is provided by the ______.
• All of the following are examples of a pipeline facility except:
• If a pipeline technician finds a broken or damaged test lead while installing a bond, what should they do?
• Which of the following is not always an AOC?
• Personnel inspecting temporary markers should use the most recent version of maps, records, and alignments sheets to accurately locate and confirm the _________.
• Copper-copper sulfate electrodes are used ________.
• When taking measurements between a steel pipe and copper-copper sulfate electrode, adequate CP is indicated by a value of at least ________.
• Some line locations cannot be confirmed by probe contact due to __________.
• What condition usually indicates that a grounding cell may be malfunctioning?
• When pipeline support damage is discovered, notification is especially important if the pipe ________.
• What is the primary purpose of temporary pipeline markers?
• What is an important qualification for personnel involved in test lead replacement?
• Which of the following is NOT a major component of an electromagnetic locator?
• An instrument that is most likely used to measure very high resistance values is a(n):
• The pipeline operator may work with local authorities to facilitate an evacuation of the area surrounding a pipeline - true or false?
• Personnel performing line marking tasks must have an understanding of pipeline facilities and _________.
• Cathodic protection is used to prevent corrosion by providing which of the following to the pipe?
• Anode banks are used to provide cathodic protection to _________.
• Which of the following is a potential consequence of vandalizing a pipeline marker?
• The voltage reading is obtained by connecting a(n):
• Personnel performing line marking tasks must have an understanding of pipeline facilities and ________.
• When 2 or more CP systems interfere with one another, there is a likelihood for:
• A CP system turns the pipeline surface into:
• SCADA serves as a _______.
• Which of the following statements is true regarding brazing?
• An impressed current CP system can subject an adjacent pipeline to what?
• Which of the following is true with regard to ammeters?
• When conducting a close interval survey, the reference cell should be __________.
• Which of the following is true with regard to voltmeters?
• What device is typically used to establish a connection between a reference electrode and the surface?
• Proper interpretation of relevant pipeline documentation is required to ensure pipelines are marked with the correct ________.
• When current flows from the steel in a pipeline structure into the surrounding electrolyte causing the structure to corrode, the area is _________.
• An uninterruptible power system (UPS) supplies ______.
• An area where a hazardous gas has been detected may only be entered by personnel trained in rescue operations and qualified to use a _______.
• In the equation V = IR, what does V represent?
• Who must complete the backfilling process?
• What best defines an unexpected change in flow rate or pressure?
• What will an uninterruptible power system (UPS) primarily protect against?
• The maximum operating pressure of a gas pipeline is called _______.
• Electronic equipment must not be used in the presence of hazardous gas unless it is classified as _________.
• What tool is used to determine when an installed bond has been properly adjusted?
• Gouges, scrapes and dents in pipeline surface material are common examples of _____.
• In the control center, one indication of a pipeline explosion could be a(n) ____________.