ICC AST INSTALLATION AND
RETROFITTING COMPREHENSIVE
EXAMINATION TEST 2026 FULL QUESTIONS
AND CORRECT ANSWERS
◉40. Answer: aboveground piping should be Schedule _____
galvanized or painted/coated black steel pipe
◉1. be fully compatible with the products stores and the
underground environment
2. have sufficient strength to withstand the stress produced during
construction.. Answer: all piping components, including, fittings,
gasket, o-rings, pipedope, and piping itself must:
◉1/8" thick 1 foot below. Answer: electrical isolation material used
on tank straps for steel and composite tanks should be atleast ____
thick wider than the strap, and should extend______ below the widest
part of the tank
◉False. Answer: Flex connectors are not required on flexible pipe.
, ◉Aboveground. Answer: flex connectors installed in dispenser or
intermediate sumps should be listed for _____ use.
◉aboveground or underground. Answer: flex connectors installed in
tank-top stumps should be listed for
◉1. Slotted PVC
2. Perforated PVC
3. Coated metal pipe. Answer: groundwater monitoring wells should
be constructed with 0.020 inch openings and permeable backfill to
allow water or released product to flow freely through the well. well
should be contructed of
◉250/300 #. Answer: Installing Steel Unions Underground is not
recommended. If it is unavoidable use _______
ground joint unions and provide access for service.
◉1 Foot. Answer: Material used to provide electrical isolation
between tank strap and a steel tank should be at
least 1/8" thick, wider than the strap, and extend ______ below the
widest part of the Tank.
◉1. Physically inspect all materials for any defects. If defects are
found, notify the owner and
RETROFITTING COMPREHENSIVE
EXAMINATION TEST 2026 FULL QUESTIONS
AND CORRECT ANSWERS
◉40. Answer: aboveground piping should be Schedule _____
galvanized or painted/coated black steel pipe
◉1. be fully compatible with the products stores and the
underground environment
2. have sufficient strength to withstand the stress produced during
construction.. Answer: all piping components, including, fittings,
gasket, o-rings, pipedope, and piping itself must:
◉1/8" thick 1 foot below. Answer: electrical isolation material used
on tank straps for steel and composite tanks should be atleast ____
thick wider than the strap, and should extend______ below the widest
part of the tank
◉False. Answer: Flex connectors are not required on flexible pipe.
, ◉Aboveground. Answer: flex connectors installed in dispenser or
intermediate sumps should be listed for _____ use.
◉aboveground or underground. Answer: flex connectors installed in
tank-top stumps should be listed for
◉1. Slotted PVC
2. Perforated PVC
3. Coated metal pipe. Answer: groundwater monitoring wells should
be constructed with 0.020 inch openings and permeable backfill to
allow water or released product to flow freely through the well. well
should be contructed of
◉250/300 #. Answer: Installing Steel Unions Underground is not
recommended. If it is unavoidable use _______
ground joint unions and provide access for service.
◉1 Foot. Answer: Material used to provide electrical isolation
between tank strap and a steel tank should be at
least 1/8" thick, wider than the strap, and extend ______ below the
widest part of the Tank.
◉1. Physically inspect all materials for any defects. If defects are
found, notify the owner and
