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Icc california ust inspector exam questions and answers 100% correct 2024/2025 version
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ICC California UST Inspector Exam Questions and Answers100% Correct 2024/2025 Version.
Which agency approves a site-specific variance which allows for an alternative method of
construction or monitoring:
a.) The Regional Water Quality Board
b.) The State Water Resources Control Board
c.) The Department of Toxic Substance Control
d.) The local agency - Correct Answer - a.) The Regional Water Quality Board
CCR Title 23, Sec 2681(a)
The regulations to enforce compliance of underground storage tank systems in the state are
found in?
a.) Code of Federal Regulations, 40 CFR Part 281
b.) California Code of Regulations, Title 23, Chapter 16
c.) Code of Federal Regulations, 40 CFR Part 280
d.) California Code of Regulations, Title 23, Chapter 17 - Correct Answer - b.) California Code of
Regulations; Title 23, Chapter 16
By definition an "underground storage tank system" includes
a.) The tank, all connected piping and dispensers
b.) The tank, all connected piping, ancillary equipment and containment system
c.) Only the tank
d.) Only tanks totally beneath the surface of the ground - Correct Answer - b.) The tank, all
connected piping, ancillary equipment and containment system
(H&SC, Sec 25281(z))
The written report submitted to the local agency after an unauthorized release is required to
include the following except:
a.) Description of actions taken to stop the release
b.) Cause of the release
c.) Method of disposal of released product
d.) Date on which the release was discovered - Correct Answer - b.) Cause of the release
CCR Title 23, Sec 2652(c)
An unauthorized release which does not escape from secondary containment only requires a
record on the operator's monitoring reports provided:
A. It did not increase the hazard of fire
B. It did not cause any deterioration of the secondary containment
C. It was cleaned up within 8 hours of detection
D. All of the above - Correct Answer - D. All of the above
H&SC, Sec 25294
The annual monitoring certification may be performed by:
,ICC California UST Inspector Exam Questions and Answers 100% Correct 2024\2025 Version.
A. A person possessing the appropriate contractors licenses
B. An individual trained and certified by the manufacturer of the monitoring equipment
C. A designated UST operator
D. A person who meets the requirements of both a and b - Correct Answer - D. A person who
meets the requirements of both a and b
CCR Title 23, Sec 2715(i)
When an automatic tank gauge is utilized for single-walled tank leak detection, it shall generate
post-test hard copy data report of the following information, except:
a.) Liquid volume
b.) Fuel depth
c.) Outside air temperature
d.) Time and date of test - Correct Answer - c.) Outside air temperature
CCR Title 23, Sec 2643(b)(1)
If a UST system is utilizing an overfill alarm, the alarm must be triggered to alert the transfer
operator when the tank is no more than ___________ full
a.) 85%
b.) 95%
c.) 90%
d.) 80% - Correct Answer - c.) 90%
An automatic tank gauge is utilized for leak detection of the ______________.
a.) Tank
b.) Tank and Piping
c.) Piping
d.) Interstitial space - Correct Answer - a.) Tank
CCR Title 23, Sec 2643(b)(1)
After completion of enhanced leak detection (ELD) test, the ELD test results must be submitted
to the _________________.
a.) The local agency
b.) The SWRCB
c.) Owner of the UST system
d.) To both the SWRCB and the local agency - Correct Answer - d.) To both the SWRCB and the
local agency
CCR Title 23, Sec 2644.1(a)(5)
A permit to operate a UST system must have all of the following listed on the permit, EXCEPT:
a.) The state UST identification number(s)
b.) Name of the tank manufacturer and tank capacity
c.) Permit expiration date
d.) Monitoring requirements - Correct Answer - b.) Name of the tank manufacturer and tank
capacity
CCR Title 23, Sec 2712(c)
A temporary closure is appropriate for which of the following:
a.) The UST system is empty and will be removed from service indefinitely
b.) The UST system has ceased to store hazardous materials but will be used within the next 12
,ICC California UST Inspector Exam Questions and Answers 100% Correct 2024\2025 Version.
consecutive months
c.) The UST system is unable to meet compliance requirements and will be removed
d.) The UST system has been red-tagged - Correct Answer - b.) The UST system has ceased to
store hazardous materials but will be used within the next 12 consecutive months
CCR Title 23, Sec 2671 & 2670
A local agency determines that a UST facility within the last year had compliance issues. Prior to
issuing a new permit or renewal to operate an UST the local agency shall:
a.) Ask the state to assist in a joint inspection
b.) Request the owner/operator to submit a "Return to Compliance" form.
c.) Refer to a District Attorney Investigator
d.) Inspect the facility and determine compliance - Correct Answer - d.) Inspect the facility and
determine compliance
CCR Title 23, Sec 2712(c)
All the following components require third party certification, except:
a.) Automatic tank gauging systems
b.) Statistical inventory reconciliation methods
c.) Spill Containment lids
d.) Liquid phase out-of-tank products - Correct Answer - c.) Spill Containment lids
The exterior surface of an underground storage tank must bear a marking or label which shows
the following information, except:
a.) Design pressure in psig
b.) Useable capacity in gallons.
c.) Width of the interstitial space
d.) Identity of manufacturer - Correct Answer - c.) Width of the interstitial space
CCR Title 23, Sec 2631(b)
Which of the following is not a confined space:
a.) A really deep turbine sump
b.) A space not designed for continuous employee occupancy
c.) An area with limited access
d.) An area with limited ventilation - Correct Answer - d.) An area with limited ventilation
CCR Title 8, Sec 5157(b)
A secondary containment system which is not an integral part of primary containment shall be
designed and constructed according to an engineering specification approved by a third party.
The secondary containment system shall contain ______________ of the volume of the largest
primary container within it, in the case of multiple primary containers:
a.) 100 percent
b.) 10 percent
c.) 110 percent
d.) 150 percent - Correct Answer - d.) 150 percent
CCR Title 23, Sec 2631(e)(1)(B)
All the following are approved overfill prevention systems, except:
a.) Automatic shutoff devices
b.) Spill Containers
, ICC California UST Inspector Exam Questions and Answers 100% Correct 2024\2025 Version.
c.) Overfill alarms
d.) Flapper valves - Correct Answer - b.) Spill Containers
CCR Title 23, Sec 2635(b)(2)
Automatic line leak detectors shall be installed on underground pressurized piping with
secondary containment and shall be capable of detecting a:
a.) 3-gallon per hour leak rate at 5 psi within 1 hour.
b.) .1-gallon per hour leak rate at 5 psi within 1 hour.
c.) 3-gallon per hour leak rate at 10 psi within 1 hour.
d.) .1-gallon per hour leak rate at 10 psi within 1 hour. - Correct Answer - c.) 3-gallon per hour
leak rate at 10 psi within 1 hour.
CCR Title 23, Sec 2636(f)(2)(f)(3) & 2643(c)(1)
Individuals installing an Underground Storage Tank System shall meet all of the following,
except:
a.) California Licensed Tank Tester
b.) Possess the appropriate Contractors State License Board license.
c.) Effective January 1, 2005, the individual shall possess a current underground storage tank
system installer certificate from the ICC UST Installation/Retrofitting exam.
d.) The individual has been adequately trained as evidenced by a certificate of training issued by
the manufacturer(s) of the underground storage tank system component(s) being installed. -
Correct Answer - a.) California Licensed Tank Tester
CCR Title 23, Sec 2715(g)(h)
Which of the following would not require secondary containment testing?
a.) Interstitial space hydrostatically monitored
b.) Under-dispenser containment
c.) Turbine piping sump
d.) Secondary piping - Correct Answer - a.) Interstitial space hydrostatically monitored
CCR Title 23, Sec 2637(g)
Fiberglass tanks shall be repaired by the following, except:
a.) Small fractures and fissures may be repaired with epoxy
b.) Fiberglass cloth with a minimum dimension 12 x 12 inches centered over the area to be
repaired.
c.) A second layer of fiberglass cloth shall be installed directly over the primary cloth layer and
shall be cut to overlap the primary patch by 5 inches on all sides.
d.) The repaired tank shall be tested for tightness within 30 calendar days following the date of
the completion of the repair. - Correct Answer - c.) A second layer of fiberglass cloth shall be
installed directly over the primary cloth layer and shall be cut to overlap the primary patch by 5
inches on all sides.
CCR Title 23, Sec 2661(d)(4)
Automatic line leak detectors shall be installed on underground pressurized piping and shall be
capable of detecting a 3-gallon per hour leak rate at 10 psi within 1 hour with a probability of
detection of at least ______% and a probability of false alarm no greater than _______%.
a.) 95, 5
b.) 98, 2
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