KENTUCKY UST COMPREHENSIVE EXAM 2025/2026
QUESTIONS WITH ANSWERS MARKED A+
✔✔factory-installed galvanic cathodic Protection Systems for underground petroleum
storage tanks usually include what as standard equipment - ✔✔long lasting corrosion
resistant coating, zinc or magnesium anodes and electronically isolating fittings
✔✔which of the following factors do not affect the type and rate of corrosion occurring
on Buried structures
soil moisture content.
static head.
Dissolved salts.
PH acidity levels - ✔✔static head
✔✔a factory-installed galvanic cathodic protection system for an underground storage
tank is designed to cathartically protect what? - ✔✔the tank only
✔✔the cathode of an electrochemical cell is - ✔✔the place where no metal loss occurs
✔✔cathodic protection is a system which does what - ✔✔prevent corrosion of the
protective structure
✔✔in the handling of anodes during installation what is it important not to do? -
✔✔handle or lower the anodes by the lead wire
✔✔which of the following choices list these Metals in the correct order from the most
prone to the least prone to corrosion.
copper, bronze, zinc, mild Steel
zinc, copper, magnesium, mild Steel
magnesium, zinc, aluminum, cast iron, copper
magnesium, cast-iron, zinc, mild steel, copper - ✔✔magnesium, zinc, aluminum, cast
iron, copper
✔✔which of the following statements does not describe a disadvantage to an impressed
cathodic protection system
, the tank to be protected must be at least half filled with product at all times.
the system may cause interference problems or straight currents on foreign structures.
it is possible to deliberately or unintentionally switch off current and eliminate protection.
systems must be monitored and maintained on a regular schedule - ✔✔the tank to be
protected must be at least half filled with product at all times.
✔✔electrical conduit installed at a petroleum marketing facility should be - ✔✔routed
away from the piping
✔✔in addition to State and local Electrical Codes all but one of the following codes May
cover the wiring of petroleum marketing facilities. Which does not apply?
National Electric Code NFPA 70
uniform fire code article 79
Architects wiring standards section 101
National Fire Protection Association NFPA A - ✔✔Architects wiring standards
section 101
✔✔when a tank is temporarily removed from service all but one of the following
procedures may be followed which one should not be followed.
drain all product lines into the tank and remove all liquids from the tank.
remove all product from the tank with the exception of four inches to assure a saturated
Vapor space.
add enough product to the tank to completely fill it.
when water table or water flooding conditions exist remove all stored liquid and ballast
the tank by filling it with water - ✔✔add enough product to the tank to completely fill it.
✔✔to ensure that a tank is properly secured when it is temporarily taken out of service
all but one of the following precautions should be taken. which one does not apply?
cap the fill pipe gauge pipe tank truck vapor recovery fitting and Vapor return
disconnect the power supply to the pumps
cap and close the vent lines
QUESTIONS WITH ANSWERS MARKED A+
✔✔factory-installed galvanic cathodic Protection Systems for underground petroleum
storage tanks usually include what as standard equipment - ✔✔long lasting corrosion
resistant coating, zinc or magnesium anodes and electronically isolating fittings
✔✔which of the following factors do not affect the type and rate of corrosion occurring
on Buried structures
soil moisture content.
static head.
Dissolved salts.
PH acidity levels - ✔✔static head
✔✔a factory-installed galvanic cathodic protection system for an underground storage
tank is designed to cathartically protect what? - ✔✔the tank only
✔✔the cathode of an electrochemical cell is - ✔✔the place where no metal loss occurs
✔✔cathodic protection is a system which does what - ✔✔prevent corrosion of the
protective structure
✔✔in the handling of anodes during installation what is it important not to do? -
✔✔handle or lower the anodes by the lead wire
✔✔which of the following choices list these Metals in the correct order from the most
prone to the least prone to corrosion.
copper, bronze, zinc, mild Steel
zinc, copper, magnesium, mild Steel
magnesium, zinc, aluminum, cast iron, copper
magnesium, cast-iron, zinc, mild steel, copper - ✔✔magnesium, zinc, aluminum, cast
iron, copper
✔✔which of the following statements does not describe a disadvantage to an impressed
cathodic protection system
, the tank to be protected must be at least half filled with product at all times.
the system may cause interference problems or straight currents on foreign structures.
it is possible to deliberately or unintentionally switch off current and eliminate protection.
systems must be monitored and maintained on a regular schedule - ✔✔the tank to be
protected must be at least half filled with product at all times.
✔✔electrical conduit installed at a petroleum marketing facility should be - ✔✔routed
away from the piping
✔✔in addition to State and local Electrical Codes all but one of the following codes May
cover the wiring of petroleum marketing facilities. Which does not apply?
National Electric Code NFPA 70
uniform fire code article 79
Architects wiring standards section 101
National Fire Protection Association NFPA A - ✔✔Architects wiring standards
section 101
✔✔when a tank is temporarily removed from service all but one of the following
procedures may be followed which one should not be followed.
drain all product lines into the tank and remove all liquids from the tank.
remove all product from the tank with the exception of four inches to assure a saturated
Vapor space.
add enough product to the tank to completely fill it.
when water table or water flooding conditions exist remove all stored liquid and ballast
the tank by filling it with water - ✔✔add enough product to the tank to completely fill it.
✔✔to ensure that a tank is properly secured when it is temporarily taken out of service
all but one of the following precautions should be taken. which one does not apply?
cap the fill pipe gauge pipe tank truck vapor recovery fitting and Vapor return
disconnect the power supply to the pumps
cap and close the vent lines
