Kentucky UST Certification Test Prep|2023 LATEST UPDATE|GUARANTEED SUCCESS

1. when tanks arrive at the job site, how should they be unloaded? lifted off with a cable attached to the tank lifting lugs As an alternative lifting method, should a cable or chain be wrapped around the tank? No, Never! When you are lifting a tank, using the lifting lugs, which of these procedures should be followed? attach a triangle cable through the lugs with no more than a 30 degree angle from the center line. After you unload a new tank on a clean level surface at the job site what else should you do prior to inspection and pre-testing? Chock the tank to prevent it from Rolling which of the following items should be physically checked for damage or imperfections at the job site? Piping (steel and fiberglass) Fittings, Vents, Fillboxes, anodes, ECT.. The tanks themselves (ALL OF THE ABOVE)! STI-P3 tanks are delivered with shipping plugs in tank openings. What should be done to these plugs prior to testing? remove the plugs and replace them with a standard threaded plug that is properly doped should dielectric bushings be installed in all openings of an STI-P3 tank? yes on all openings what is the maximum air pressure to which a steel tank should be subjected in a pre-installation test? 5 pounds for fiberglass reinforced plastic (FRP) tanks up to 12 feet in diameter what is an acceptable air pressure to which the tanks may be subjected in a pre-installation test? 3 pounds for FRP tanks over 12 feet in diameter what is the maximum air pressure to which the tanks should be subjected in a pre-installation test? 3 pounds when you are conducting an air test on a tank the type of gauge that should be used is? a pressure gauge with a maximum limit of 10 to 15 PSIG the proper procedure for conducting a pre-installation air test of a steel tank is to? apply 3 to 5 pounds of pressure and soap all surfaces and weld seams visible through the coating while inspecting for bubbles. what is the proper procedure for conducting a pre-installation air test of an FRP tank Under 12 feet in diameter is to.... apply 3 pounds of air pressure and soap all surfaces while inspecting for any sign of a leak either audible or visible in the form of bubbles on the surface a double-walled steel tank build in accordance with UL standard 58 is? requires air testing of the interstitial space prior to installation the proper procedure for conducting a pre-installation air test of a double-walled tank is to? pressurize the inner tank monitor the pressure for one hour and then pressurize the space between the inner and outer tanks with the air from the inner tank when shipped a steel tank is covered with a coating that is an important part of the tanks Corrosion Prevention system. "holidays" which show up in the coating at the installation site should? should be touched up with a compatible coating after proper surface preparation touch up of holidays in a steel tank coatings at the installation site should be done....... according to the manufacturer's instructions dielectric bushings are usually made of what? non-metallic material factors to consider in determining the size shape and depth of a tank excavation include what? *the tank manufacturers recommendations *the requirements for compacting bedding and backfill as well as stability of the soil *the depth of cover AKA all of the above in the absence of local requirements the recommended minimum distance between a tank excavation and adjacent structures or property lines is how many feet? 5 feet reinforcement of a steel underground tank may be required by the tank manufacturer if the burial depth is greater than the tank diameter according to FRP tank manufacturers specifications the burial depth for an FRP tank should not exceed how many feet? 7 feet when installing a cathodically protected steel tank you should make sure the excavation is free from material that could cause damage to the coating when installing dielectric bushings in a cathodically protected steel tank prior to placing the tank in the excavation you should make sure that no electric current can pass through the dielectric flanges or bushings industry codes as well as the specifications of individual manufacturers do not entirely agree as to the minimum space that should be maintained between tanks and stalled in stable soil conditions. what ranges of minimum spacing between tanks derived from various industry codes and manufacture specifications which range is most accurate. from 12 inches to 24 inches acceptable bedding material for steel tanks include.... clean washed well granulated gravel sand or Rock between 1/8 inch and 1/2 inch in size pea gravel with a minimum diameter of 1/8 inch and a maximum diameter of 3/4 inch number 8 crushed stone how should steel tanks should be lowered into the excavation through the use of lifting lugs installed by the manufacture and use of lifting equipment of sufficient capacity to lift and lower the tank when installing a steel tank which has zinc anodes welded directly onto the tank for cathodic protection you should remove the plastic wrapping around the anodes prior to installation if local authorities and tank manufacturers permit a sand slurry mixture to be used for backfilling a tank what steps should be taken to ensure that use of the slurry is proper? use only Personnel trained in the sand slurry method by the tank manufacturer and use the method only with the manufacturer's prior approval in making a tank excavation if you discover that the specific call for the burial depth of the steel tank to be greater than the tank diameter what should you do? consult the tank manufacturer to determine if reinforcements will be required what is the minimum depth of bedding required for a pipe trench in traffic areas? 6 inches measured from the finish grade what is the minimum burial depth for the piping system of an underground tank and traffic areas? 18 inches when planning your trenches for the piping system how much slope toward the tank should be allowed for each linear foot of piping? 1/8 inch excessive deflection of an installed tank particularly tanks made of fiberglass reinforced plastic can create residual stress on the tank. after you have measured the amount of deflection in a tank you have just installed how do you determine if the deflection is acceptable? check with the tank manufacture if the actual deflection exceeds the limits established by that manufacturer what is the major cause of deflection in a newly-installed tank? improper bedding voids under the tank bottom poor compaction of backfill material if both pea gravel and sand are used as backfill in the same excavation what material should be used to prevent migration of sand fines into voids in the pea gravel Filter Fabric if a bottom hold down pad is used as a means of anchoring the tank what is the minimum distance the pad should extend beyond the sides and ends of the tank? 18 inches Beyond each side and 12 inches Beyond each end when installing a bottom hold down pad what should be the proximity of the tank to the hold down pad? an adequate bedding of backfill material must separate the tank and the pad. for purposes of making tank Anchorage calculations what is the approximate weight of 1 cubic foot of sand or pea gravel? 60 pounds what is an acceptable minimum burial depth of cover for steel underground tanks in traffic areas as specified in NFPA 30? 3 feet of Earth what is an acceptable minimum burial depth of cover required for non-metallic underground tanks in traffic areas as specified in NFPA 30? 3 feet of Earth what are dead men anchors? beams of reinforced concrete placed in the excavation with cables and or straps attached in dry areas where tank floatation is not a problem and which are not subject to traffic what is the minimum depth of cover recommended? 1 foot of backfill material plus four inches of reinforced concrete and/or 1 foot of backfill covered by Filter Fabric and 1 foot of Earth