U1 UST Installation/Retrofitting Practice Exam

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• What type of materials should straps for steel tanks be made from?
• To what depth should the bottom of the excavation be covered with suitably graded backfill material?
• Vent restriction devices will not function as which of the following measures when using coaxial Stage I Vapor recovery?
• What type of equipment should be used to add ballast to an excavation?
• What is the standard maximum depth for fiberglass tanks?
• Vent restriction devices must not be installed in systems with which type of pumps?
• What should the plans for a storage system describe?
• What is one significant cause of leaks in underground liquid storage systems?
• What should technicians refer to for determining the correct distance for installing an overfill-prevention device?
• How should tanks be inspected prior to installation?
• To improve effectiveness of inventory control, the tank owner should utilize a tank chart and gauge stick calibrated in what measurement?
• What are geotextiles designed to prevent the movement of back-fill materials while permitting water to pass through?
• What is the recommended action for tanks in areas with high water tables?
• If a compartment has single-walled bulkheads, compartments should be tested on which of the following?
• In traffic areas, what is the necessary depth of bedding and back-fill material combined above the top of the pipe?
• Much of a buried tank's support is derived from what material?
• Where should piping materials and equipment be stockpiled on a job site?
• What pressure is considered hazardous for air testing and may damage the tank?
• If a man-way weighs more than a single wall tank, what effect could that have on the tank?
• For effective tank installation, which of the following should NOT be overlooked?
• Where should vent outlets be located in relation to building openings and air intakes?
• Standard drop tubes should allow for at least what inches of clearance from the tank bottom?
• What should the installation facilitate for detecting leakage?
• Which type of line requires extreme care to avoid kinking during installation?
• True or False: Electrically isolating straps ensures the proper operation of corrosion-protection systems.
• True or False: Temperature changes can lead to over-pressurization.
• What are the maximum limits for the pressure gauge according to test pressures not exceeding 5 psig?
• In the context of UST installations, what is the purpose of a backup safety device?
• What is typically utilized to detect leaks in underground storage systems?
• Which surfaces of a tank should be inspected for signs of leakage when shipped with a liquid-filled interstice?
• A double-walled tank shipped with which condition on the interstice need not be subjected to an air/soap test?
• What type of barricades should be placed at the ends of tanks being tested?
• To provide a firm foundation for the tank, what type of material should be used as a bed?
• What must the slope of the concrete around spill containment areas prevent?
• What is a key consideration for tank excavation in areas prone to collapse?
• Transition sumps installed should always have a raised concrete apron not less than how many inches around the grade opening for durability?
• Which agency level is not typically involved in regulating storage systems?
• Why is a visual inspection of tanks vital before installation?
• In most states, acceptable leak detection for newly installed underground tanks is limited to what methods?
• How many gallons of water should anodes be soaked with after installation?
• What action should be taken if leakage or premature corrosion is detected?
• What is the typical burial depth for steel tanks?
• What is the purpose of dielectric coatings on tanks and piping?
• Tank-top sumps are designed to contain leaks from which type of fittings?
• What do dispenser leaks typically involve?
• Which type of tank should not be air tested?
• What is the recommended testing approach for compartments with double-walled bulkheads?
• How should straps be secured to anchor points?
• True or False: Air tests are inconclusive without soaping and careful inspection for bubbles.
• True or False: Dissimilar metals should not be joined together as they promote corrosion.
• What should be done before disconnecting any gauges or test fittings on a tank?
• Where should flexible connectors be installed according to best practices?
• What is a key factor to check before the installation of new equipment?
• How deep should sand and backfill be placed into the excavation during tank installation?
• What is the minimum slope required for vent piping back to the tank?
• Which of the following is important for maintaining tank integrity during backfilling?
• How does temperature affect the pressure within an installation's system?
• For effective tank installation, how often should the backfill be compacted?
• What is the appropriate area for running piping in a single trench according to installation practices?
• How far below the manhole lid should the top of the fill cap be installed?
• What is the maximum allowable height of the shear section in relation to the main surface that supports the dispenser?
• What type of backfill material is recommended for piping?
• Which of the following is NOT a common deficiency affecting the structural integrity of tanks?
• What can cause premature storage-system failures?
• True or False: Proper cathodic protection is only necessary for above-ground storage tanks.
• What type of backfill material should be used?
• Prior to installation, what is crucial for ensuring that a tank installation is proficient?
• True or False: Protection should be provided for gauges and monitoring devices subject to corrosion.
• Why is it crucial to have written plans for storage systems?
• Installing sensors in dispenser sumps can provide a more reliable warning of what?
• Before installation, what should all owners ensure about the equipment?
• What is the best practice to avoid undermining the foundations of existing structures during excavation?
• What types of plans are required to obtain permits and guide installers accurately?
• To prevent damage in the interstitial space, the inner tank should not be pressurized above what level?
• What should be avoided while a tank is under pressure?
• What type of piping should not be used for fill risers?
• What is a potential consequence of dropping or dragging tanks?
• What is the minimum clearance required between piping and electrical conduit?
• Which term is used to describe the method of preventing movement of backfill materials while allowing water to pass?
• Which of the following is NOT a type of overfill prevention device?
• All dispenser-sump entries should be fitted with what type of penetration fittings?
• What type of system provides an additional layer of protection against product release?
• Before using gauge instruments, what must be checked?
• Which of the following is a critical factor in identifying leaks during air tests?
• If water ballast is used, what should its level in the tank not do?
• What is important when inspecting tanks during a pressure test?
• Some manufacturers leave fittings loosely tightened to allow for what during shipping and storage?
• What material is specified for back-filling around piping?
• What can water in a storage tank promote, potentially degrading fuel quality?
• How far away should excavated materials from a tank excavation be stockpiled?
• What is the primary reason for checking the operation of gauges before use?
• What is the potential risk of exceeding the recommended air pressure in tank testing?
• Which of the following practices is important to prevent interference during backfill operations?
• What additional support can a buried tank utilize to maintain its integrity?
• What should be used to support a tank during installation in environments prone to flooding?
• What is the minimum slope required per foot toward the tank for vapor and vent lines?
• What should not be twisted or kinked during piping installation?
• What type of devices are commonly used for overfill prevention?
• What is the essential reason for compacting back-fill material effectively?
• What condition should be met for a double-walled tank to avoid air/soap testing?
• What is the purpose of using two gauges during installation?
• What is a common characteristic of gauges that can result in undetected small pressure changes?
• What device is installed in the fill pipe of underground tanks to stop the flow of product during delivery?
• Who typically regulates the storage systems discussed in practice?
• What is a key requirement for piping and couplings during installation?
• For effective installation, what should be checked regarding the shear valves?
• What type of lengths should both primary and secondary piping consist of between containment sumps?
• If a product is used for ballast, to what percentage should the tank not be filled?
• What is a key factor determining the buoyancy of the tank?
• Which of the following is NOT a factor in determining tank excavation depth?
• Which tools should be used to carefully lift and lower tanks?
• What is the minimum thickness of bedding material when using a bottom hold-down pad under a steel tank?
• An efficient piping design aims to minimize what two aspects?
• During a lift, what should be monitored for safety?
• To avoid damage, how should tanks be handled?
• What equipment may be included in underground storage systems?
• What is an important factor when locating vent outlets according to safety standards?
• Which device is used to alert users before an overfill situation occurs?
• What is the maximum capacity percentage that overfill alerts should not exceed?
• What could be a potential outcome of not using a pressure-relief device?
• What potential issue is caused by inadequately placed backfill materials?
• What factors determine the total depth of the tank excavation?
• What action should be taken to prevent damage to piping during construction?
• Shut-off devices designed for use with USTs should only be used with which type of deliveries?
• What percentage of the tank should be filled before the backfill is compacted?
• When should tanks ideally be moved?
• Which method is used to secure tank straps?
• What should be confirmed by reporting to the owner?
• What device is essential to prevent over-pressurization?
• What must be ensured when installing cathodic protection anodes?
• In areas subject to vehicle traffic, what is the minimum required thickness of compacted backfill when combined with asphaltic concrete?
• What is the purpose of a release detection system?
• Where are vent restriction devices installed in relation to the UST?
• What is essential for monitoring systems to function properly?
• What should be included in the guidance provided for installers?
• Why is it important to obtain permits for storage system installation?
• What should the tank not be used to support during construction?
• What must be done with tank vents and openings that are not liquid-tight during installation?
• What must metallic underground storage systems be provided with to ensure safety?
• The set-points for overfill alerts should not exceed what percentage of capacity?
• What is the primary function of shut-off devices in underground tanks?
• What are the standard backfill materials for a fiberglass tank?
• Who should ensure that the equipment meets all regulatory requirements before installation?
• How is flexibility affected in piping installation?
• What is essential for tanks gauges to detect?
• What is the minimum distance that the water table should be from the ground surface year-round for leak detection to be valid?
• What is a key feature of a properly installed underground storage system?
• What is the proper method for moving a tank?
• What forces are offset by the weight of back-fill and paving on top of a tank?
• What is the purpose of written plans in the installation of storage systems?
• In what concentration may flammable or combustible liquids and vapors be present in tank-top sumps?
• What type of wiring should be installed at least 24 inches deep during backfill operations?
• How should tank vents be handled during installation in areas prone to flooding?
• Which system is essential to ensure tanks and piping are electrically isolated from metal structures?
• What is one consequence of failing to prevent the migration of backfill materials?
• What can be added to the top of a buried tank to offset buoyancy?
• What should be done before finalizing storage-system plans?
• What should be done with concrete around spill-containment manholes?
• In terms of tank safety, what supports the tank from flotation in wet conditions?
• When paying attention to piping requirements, which radius is pertinent to trenching?
• Which procedure must be followed when moving a tank?
• What must not exceed 95% during product delivery in UST systems?
• What is one of the expected outcomes when minimizing the number of fittings in piping design?
• What is an important feature of the manhole assembly in fuel tank installations?
• What diameter steel piping is typically used for fill-pipe risers?
• What is a crucial step before backfilling a tank excavation?
• What construction material is isolated by tank-top sumps from corrosive underground environments?
• What should isolating material for straps of steel tanks be at least?
• What must be done if a tank is damaged during the moving process?
• What material should be used to create a hold-down pad for a tank?
• Which material should NOT be present in the backfill for optimal storage tank safety?
• What type of fabric should separate dissimilar backfill materials in an excavation?
• A bottom hold-down pad for a tank typically consists of how many inches of reinforced concrete?
• When should a tank not be subjected to the installation air/soap test?
• What aspect of gauge instruments is critical for accurate readings?
• In a suction piping configuration, how should the entire piping run be sloped?
• What is the ultimate goal of following recommended practices in storage system installation?
• What consequence might occur from insufficient clearance in standard drop tubes?
• What is the purpose of proper vent piping sizing?
• For double-wall tanks, pressure monitoring should occur for a minimum of how long?
• At what pressure should fiberglass secondary-containment be tested?
• Why should trenches be clearly marked during construction?
• How many feet of backfill must be placed between adjacent tanks and between tanks and excavation walls?
• Is it permitted to manifold tanks of different diameters?
• What is the recommended air pressure range for pressure testing single-walled tanks?
• Why should tank installers undergo training programs?
• What is the primary reason for having a written plan during installation projects?
• What is the testing pressure for flexible secondary piping?
• What is the maximum angle allowed between the lifting cable and vertical when using two lifting lugs?
• How many feet of suitably graded and compacted backfill material should cover the bottom of a fiberglass tank excavation?
• What is the required pressure for air testing new single-walled product piping according to the manufacturer's standards?
• What is the consequence of failing to consult local authorities before finalizing plans?