National Grid Task 70 Practice Test

These questions are part of the practice quiz. Start practicing

• During an explosion on site, whom should you check in with on scene?
• What term describes a condition identified by the operator that may indicate a malfunction or deviation from normal operations and could pose hazards?
• Because of its weight, which substance mixes with air?
• What does the FLONC acronym stand for in gas hazard awareness?
• Carbon monoxide is a byproduct of _______________________.
• Which step is explicitly listed as part of the response to a component failure?
• By compressing natural gas, it increases its ______ and ______.
• What distance constitutes the standard safe perimeter during a component failure?
• During a gas leak, what step helps protect the public?
• What actions are required in the event of an explosion?
• If re-entry into a confined space is necessary after atmospheric testing, what is required?
• What is the flammability range percentage for gas?
• If a hazardous atmosphere is present, what procedure should be followed?
• What is the best immediate action during an uncontrolled ignition of gas?
• If a meter is full of water, what is the proper action?
• In an area where gas is blowing but there is no odor, this could indicate what?
• Natural gas expands when heated and contracts when cooled. Which answer option captures this correctly?
• In responding to a gas leak, which action is critical to reduce ignition risk?
• What is the primary safety objective when gas facility damage is discovered?
• During a gas incident, which action is required to coordinate on-scene operations?
• What is the correct action when a gas explosion occurs?
• What is the first safety action if the atmosphere in a confined space becomes unsafe?
• If facilities are unintentionally exposed, what action should you take?
• If there are reports of customers having no gas, what are two possible main issues?
• Which statement correctly describes what you should do when you detect inadequate transmission pressure?
• What are the signs of a gas leak?
• During inadequate transmission pressure, which condition would be unsafe?
• What do construction equipment, trucks, vehicles and static electricity all contribute ignition of?
• PCB waste disposal location?
• Which gas is likely to accumulate near the ceiling in an enclosed space due to being lighter than air?
• When natural gas is compressed, which pair increases?
• For odor complaint investigations, which phrase describes the required protocol?
• Mercaptan is added for what reason?
• What defines excessive pressure in a gas system?
• Natural gas is what?
• When inadequate transmission pressure is detected, what is the recommended sequence of actions?
• What is required when investigating all odor complaints?
• If improper odorization is found, what steps should you follow?
• What is the flammability range of natural gas?
• Methane constitutes approximately what percentage of natural gas?
• When damage to gas facilities is observed, which sequence best reflects the recommended actions?
• Which action is a safety-focused step during a component failure?
• If there is atmospheric change in a confined space, what steps should you follow?
• What should you do if unintentional ignition occurs?
• During an environmental incident who should you contact?
• When gas is blowing but there is no odor, the system may be described as what?
• What should you do if a relief valve is blowing?
• If you have gauges or telemeters indicating a lower pressure than normal this would be a ________________?
• What defines inadequate pressure, and what action is associated with bagging?
• If there is an explosion in a manhole, it is generally assumed that __________________________.
• What is an environmental incident?
• Which action is not listed as part of the environmental incident response?
• When there is no gas detected, which action should you take?
• The principal component in natural gas is methane. Which is a correct option for its typical composition?
• What can gas facilities be damaged by?
• Which of the following best indicates damaged gas pipes?
• Which material does not erode in this context?
• Which statement about gas piping materials is true?
• When natural gas is heated, what happens to its volume?
• In a street where flooding occurs and a high-pressure gas leak is present, what two hazards are likely?
• Above normal pressure at a _________________ could be the cause for the regulator to _____________
• If you detect a gas odor, what is the most appropriate initial action?
• What do you do if you found a dent in a pipe?
• What is the main component found in natural gas and approximately what percentage is it?
• If a relief valve is blowing, what should you avoid doing with valves?
• What is the risk associated with blowing gas on both plastic and steel mains/services?
• Blowing gas can be identified as which of the following?
• Adequate pressure is greater than which range?
• Gas leaks can show signs even without odor. Which sign would indicate this?
• What do you do if a gas explosion occurs ?
• Which two materials are treated the same and have the same potential to ignite blowing gas when ruptured?
• Natural gas is ______ than air, with a specific gravity of approximately ______.
• Which of the following sets correctly lists the properties of natural gas?
• What do you do if you find PCB at a worksite?
• What is the recommended action when you uncover a damaged facility?
• During an uncontrolled escape of gas while performing a covered task, which action should be taken to address ignition sources?
• What should you do if you uncover a damaged facility?
• Which of the following is NOT part of the recommended response to a component failure?
• What do you do if you're on a call and a higher than expected reading is found?
• If damage occurs to facilities, which actions should you take?
• Which statement best describes the odorization status when gas is blowing and no odor is detected?
• Which action is part of responding to an environmental incident?
• Which step should be taken before reentering a confined space after an atmosphere change?
• Which term describes a pressure reading that is lower than expected?
• The abbreviation AOC stands for which term?
• Gas flows from which type of pressure to which?
• 0-124 PSIG is associated with which part of the gas system?
• When natural gas is cooled, what happens to its volume?
• After a component failure, which assessment step should be performed to check gas levels?
• Why is natural gas called the silent killer?
• If a gas system is over-pressurized, which indication would generally be present?
• In a natural gas system, from which pressure to which pressure does the gas flow?
• In response to an unintentional ignition, which two contacts must be made immediately?
• Which of the following would be an immediate priority when an inadequate pressure condition is observed?
• What perimeter should be maintained during a component failure?
• During a component failure, what is the primary action you should take to ensure safety?
• If pressurization occurs at the gate station where odorizing is performed, what is a possible cause?
• Which action is used to evaluate the hazard level after a component failure?
• What instruments are required when determining adequate pressure?
• What color is the flame when burning clean natural gas?
• If there are reports of customers having no gas, what could be the cause?
• If a regulator is venting gas, what should you do?
• Lower than normal pressure could be caused by having ________________________.
• What is a safe distance for the public during an uncontrolled gas escape?
• Under pressurization, odorizing being left in manual mode is most likely caused by what?