` U1: UST Inspector
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. What is the correct definition of an UST?
a. Any one or combination of tanks, including pipes connected thereto, that is
used for the storage of hazardous substances and that is substantially or totally
beneath the surface of the ground.
b. An underground storage tank, connected piping, ancillary equipment, and
containment system, if any.
c. A tank that is at 10% below ground surface.
d. A tank that is at 10% below ground surface and is not regulated as a hazardous
waste tank under 22 CCR or otherwise exempt from regulation under 23 CCR. -
CORRECT ANSWER a. Any one or combination of tanks, including pipes connected
thereto, that is used for the storage of hazardous substances and that is
substantially or totally beneath the surface of the ground.
2. What is the correct definition of an UST system?
a. any one or combination of tanks, including pipes connected thereto, that is
used for the storage of hazardous substances and that is substantially or totally
beneath the surface of the ground.
b. an underground storage tank, connected piping, ancillary equipment, and
containment system, if any.
c. A tank that is at 10% below ground surface.
,d. A tank that is at 10% below ground surface and is not regulated as a hazardous
waste tank under 22 CCR or otherwise exempt from regulation under 23 CCR. -
CORRECT ANSWER b. an underground storage tank, connected piping, ancillary
equipment, and containment system, if any.
3. An interstitial monitor detects:
a. Loss of fuel due to theft.
b. Vapors in the air space above the fuel.
c. Problems with the cathodic protection system.
d. Leaks between the primary and secondary containment. - CORRECT ANSWER d.
Leaks between the primary and secondary containment.
4. A person who installs monitoring equipment must posses any one of the
following licenses, EXCEPT
a. A C-34 Pipeline Contractor license
b. A C-36 Plumbing Contractor license
c. A Class "A" General Engineering Contractor License
d. AN UST Monitoring Equipment Contractor License - CORRECT ANSWER d. AN
UST Monitoring Equipment Contractor License
5. All of the following should be inspected and documented on the Monitoring
System Certification form, EXCEPT:
a. Remote overfill alarms communications equipment operational.
b. The emergency shut-off switch.
c. Electronic line leak detectors.
,d. Entry and termination of in-tank gauging wires. - CORRECT ANSWER b. The
emergency shut-off switch.
6. Results of the annual monitoring system certification shall be recorded:
a. As specified by the UST Owner.
b. In the written monitoring plan.
c. As specified by the manufacturer.
d. On the Monitoring System Certification Form (Appendix VI). - CORRECT
ANSWER d. On the Monitoring System Certification Form (Appendix VI).
7. An automatic shut-off device must stop the flow into the tank when the:
a. Tank is 90% full.
b. Delivery truck is 95% empty.
c. Tank is filled to no more than 95% of capacity.
d. Fuel level is 48 inches from the bottom of the tank. - CORRECT ANSWER c. Tank
is filled to no more than 95% of capacity
8. A Monitoring System Certification includes all of the following, EXCEPT:
a. Submittal of a completed "Monitoring System Certification" form.
b. Pre-notification to the local agency of scheduled Monitoring System
Certification date.
c. Affixing a tag/sticker to each monitoring equipment component that is certified,
repaired, or replaced.
, d. Posting the "Monitoring System Certification" form in a visible location at the
UST facility. - CORRECT ANSWER d. Posting the "Monitoring System Certification"
form in a visible location at the UST facility.
9. According to CCR Title 23, UST Regulations, a person who performs a
monitoring System Certification must possess all of the following, EXCEPT:
a. A tank tester or contractor license.
b. A 40 Hour OSHA Hazwoper certificate.
c. An equipment manufacturer certification.
d. An ICC certification as Californian UST Service Technician. - CORRECT ANSWER
b. A 40 Hour OSHA Hazwoper certificate
10. Any person who intentionally disables or tampers with a leak detection
system in a manner to prevent the system from detecting a leak is subject to a
minimum fine
a. $ 500
b. $ 1,000
c. $ 5,000
d. $10,000 - CORRECT ANSWER c. $ 5,000
11. If a UST operating permit is issued to a person other than the operator of the
UST system, that person shall do all of the following, EXCEPT
a. Enter into a written agreement with the operator of the tank to monitor the
tank system as set forth in the permit.
b. Provide the operator with a copy or summary of Section 25299 in the form that
the board specifies by regulation.
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. What is the correct definition of an UST?
a. Any one or combination of tanks, including pipes connected thereto, that is
used for the storage of hazardous substances and that is substantially or totally
beneath the surface of the ground.
b. An underground storage tank, connected piping, ancillary equipment, and
containment system, if any.
c. A tank that is at 10% below ground surface.
d. A tank that is at 10% below ground surface and is not regulated as a hazardous
waste tank under 22 CCR or otherwise exempt from regulation under 23 CCR. -
CORRECT ANSWER a. Any one or combination of tanks, including pipes connected
thereto, that is used for the storage of hazardous substances and that is
substantially or totally beneath the surface of the ground.
2. What is the correct definition of an UST system?
a. any one or combination of tanks, including pipes connected thereto, that is
used for the storage of hazardous substances and that is substantially or totally
beneath the surface of the ground.
b. an underground storage tank, connected piping, ancillary equipment, and
containment system, if any.
c. A tank that is at 10% below ground surface.
,d. A tank that is at 10% below ground surface and is not regulated as a hazardous
waste tank under 22 CCR or otherwise exempt from regulation under 23 CCR. -
CORRECT ANSWER b. an underground storage tank, connected piping, ancillary
equipment, and containment system, if any.
3. An interstitial monitor detects:
a. Loss of fuel due to theft.
b. Vapors in the air space above the fuel.
c. Problems with the cathodic protection system.
d. Leaks between the primary and secondary containment. - CORRECT ANSWER d.
Leaks between the primary and secondary containment.
4. A person who installs monitoring equipment must posses any one of the
following licenses, EXCEPT
a. A C-34 Pipeline Contractor license
b. A C-36 Plumbing Contractor license
c. A Class "A" General Engineering Contractor License
d. AN UST Monitoring Equipment Contractor License - CORRECT ANSWER d. AN
UST Monitoring Equipment Contractor License
5. All of the following should be inspected and documented on the Monitoring
System Certification form, EXCEPT:
a. Remote overfill alarms communications equipment operational.
b. The emergency shut-off switch.
c. Electronic line leak detectors.
,d. Entry and termination of in-tank gauging wires. - CORRECT ANSWER b. The
emergency shut-off switch.
6. Results of the annual monitoring system certification shall be recorded:
a. As specified by the UST Owner.
b. In the written monitoring plan.
c. As specified by the manufacturer.
d. On the Monitoring System Certification Form (Appendix VI). - CORRECT
ANSWER d. On the Monitoring System Certification Form (Appendix VI).
7. An automatic shut-off device must stop the flow into the tank when the:
a. Tank is 90% full.
b. Delivery truck is 95% empty.
c. Tank is filled to no more than 95% of capacity.
d. Fuel level is 48 inches from the bottom of the tank. - CORRECT ANSWER c. Tank
is filled to no more than 95% of capacity
8. A Monitoring System Certification includes all of the following, EXCEPT:
a. Submittal of a completed "Monitoring System Certification" form.
b. Pre-notification to the local agency of scheduled Monitoring System
Certification date.
c. Affixing a tag/sticker to each monitoring equipment component that is certified,
repaired, or replaced.
, d. Posting the "Monitoring System Certification" form in a visible location at the
UST facility. - CORRECT ANSWER d. Posting the "Monitoring System Certification"
form in a visible location at the UST facility.
9. According to CCR Title 23, UST Regulations, a person who performs a
monitoring System Certification must possess all of the following, EXCEPT:
a. A tank tester or contractor license.
b. A 40 Hour OSHA Hazwoper certificate.
c. An equipment manufacturer certification.
d. An ICC certification as Californian UST Service Technician. - CORRECT ANSWER
b. A 40 Hour OSHA Hazwoper certificate
10. Any person who intentionally disables or tampers with a leak detection
system in a manner to prevent the system from detecting a leak is subject to a
minimum fine
a. $ 500
b. $ 1,000
c. $ 5,000
d. $10,000 - CORRECT ANSWER c. $ 5,000
11. If a UST operating permit is issued to a person other than the operator of the
UST system, that person shall do all of the following, EXCEPT
a. Enter into a written agreement with the operator of the tank to monitor the
tank system as set forth in the permit.
b. Provide the operator with a copy or summary of Section 25299 in the form that
the board specifies by regulation.
