U1 UST INSTALLATION/RETROFITTING NEWEST 2025/2026
NEWEST ACTUAL EXAM WITH COMPLETE QUESTIONS AND
VERIFIED ANSWERS |ALREADY GRADED A+|
80. Three types of overfill- prevention devices are commonly
used. - ANSWER-A. alarms, flow shut-off devices, and vent-
restriction devices
B. flow shut-off devices, alarms, vent- restriction devices
C. vent restriction devices, flow shut-off devices, alarms
D. All of the above
81. _________ are installed in the fill pipe of underground tanks
and automatically stop the flow of product into the tank during a
delivery. - ANSWER-Flow shut-off Devices
82. Shut-off devices that are designed for use with UST's should
only be used with _________ deliveries. - ANSWER-A.
Unmanned deliveries
B. Quick deliveries
C. Gravity deliveries
, Page |2
D. All of the above
Answer C
83. Vent Restrictions Devices are installed inside the UST just
below the - ANSWER-A. Vent opening
B. Fill pipe
C. Submersible pump
D. Coagulator pipe
Answer A
84. Vent restriction devices must not be installed in storage
systems that are equipped with_____________ pumps and air
eliminators. - ANSWER-suction
85. Vent restriction devices will not work as ______________
______________ measures when coaxial Stage I Vapor recovery
is used. - ANSWER-A. Backup safety
B. Overfill-prevention
C. Spill containment
, Page |3
D. None of the above
Answer B
86. When installing an overfill-prevention device, refer to the
_____________ chart provided by the tank manufacturer to
determine the correct distance below the tank top for that device.
- ANSWER-A. Measuring
B. Units
C. Placement
D. Gauging
check this one
87. In all cases, the set-points for overfill "alerts, " such as alarms
or vent-restricting devices, should not exceed ______%of
capacity and the set-points for product delivery shutdown through
flapper-valve-type devices should not exceed 95%. - ANSWER-
90%
, Page |4
88. The installation should facilitate the detection of leakage by
inspection or ______________________ - ANSWER-A.
Continuous monitoring
B. Leak detection
C. Oil sensors
D. All of the above
answer D
89. Tank-Top sumps are containers designed to contain leaks or
spills that involve tank-top fittings and equipment, and to
isolate____________ pipefittings from the corrosive underground
environment. - ANSWER-A. Steel
B. Climatic
C. Intrusive
D. Convex
Answer A
90. What type of system provides an additional layer of protection
against released product. - ANSWER-Secondary-containment