ICC AST Installation/
Retrofitting complete with
verified solutions already
graded A+(solved & updated)
to allow passage between tanks for inspection provide a minimum of? -
answer 1/6 of the sum of the adjacent tank diameters, but not less then 3
feet.
pressure vacuum vents remain normally closed, only opened when the
pressure inside the tank reaches? - answer 2 through 16 ounces per
square Inch or a vacuum of 0.5 through 1.0 ounces per square inch.
the primary criterion for tank foundation design is the allowable bearing
pressure of soil. - answer this ranges from 1,000 pounds per square foot
for soft clay or 4,000 for coarse, compacted gravel
nominal vent must be at least? - answer 2" nominal pipe size.
shop built tanks are designed for operating pressures between
atmospheric and 1.0 psig. in order for air and vapor to be expelled from a
tank during filling, the internal pressure must increase to at least? -
answer the pressure setting of the venting device. usually 2 ounces to 1
pound per square inch above atmospheric pressure.
pressure/ vacuum vents remain normally closed only when the pressure in
the tanks reaches a predetermined pressure setting of? - answer 2
through 16 ounces per square inch or a vacuum of 0.5 through 1.0 ounces
per square inch.
in order for air to enter a tank during liquid withdrawal the internal tank
pressure must be reduced to a pont where? - answer It is at least 1 ounce
below atmospheric pressure.
, A suitable foundation for vertical tanks can be constructed with a finished
course of clean, compacted sand, gravel or crushed rock that is placed
over the base course. The base and the Finnish courses should extend at
least? - answer 12" beyond the perimeter of the tank.
to provide drainage and settlement the surface of which the tank bottom
rests should be at least? - answer 6" above the surrounding ground
surface.
Saddle supports for horizontal tanks may be constructed of? - answer
Steel or reinforced concrete and must be installed on a firm and suitable
foundation.
Fire codes require that tank saddles are? - answer higher than 12" above
the foundation. have a minimum fire rating of 2 hours and be constructed
of protected steel, masonary or reinforced concrete. roofing felt or
expansion joint is not an acceptable electrical isolation for tank saddles.
Reinforced concrete slabs are 6 to 12 inches thick and constructed to meet
28 day, minimum 3,000 psi strength requirement. - answer
when grounding a tank use #4 solid or stranded cable. - answer use #12
TW or THHN thin stranded or solid wire to bond components
the minimum opening in a vault for personal entry should be a diameter of
at least? - answer 30"
normal tank vent should extend not less then? - answer 12' above the
general grade level and be located at least 5 feet from building openings.
emergency vents may discharge inside vault but must remain vapor tight
during normal operation. Emergency shut off switch must be located
between 20 and 100 feet from the dispensers. enclosed wiring within class
1 division 1 areas must use a maximum 3' long of explosion proof flexible
fittings.
Access manways that are intended for personal entry into a tank must be
at least 24" diameter. - answer
Retrofitting complete with
verified solutions already
graded A+(solved & updated)
to allow passage between tanks for inspection provide a minimum of? -
answer 1/6 of the sum of the adjacent tank diameters, but not less then 3
feet.
pressure vacuum vents remain normally closed, only opened when the
pressure inside the tank reaches? - answer 2 through 16 ounces per
square Inch or a vacuum of 0.5 through 1.0 ounces per square inch.
the primary criterion for tank foundation design is the allowable bearing
pressure of soil. - answer this ranges from 1,000 pounds per square foot
for soft clay or 4,000 for coarse, compacted gravel
nominal vent must be at least? - answer 2" nominal pipe size.
shop built tanks are designed for operating pressures between
atmospheric and 1.0 psig. in order for air and vapor to be expelled from a
tank during filling, the internal pressure must increase to at least? -
answer the pressure setting of the venting device. usually 2 ounces to 1
pound per square inch above atmospheric pressure.
pressure/ vacuum vents remain normally closed only when the pressure in
the tanks reaches a predetermined pressure setting of? - answer 2
through 16 ounces per square inch or a vacuum of 0.5 through 1.0 ounces
per square inch.
in order for air to enter a tank during liquid withdrawal the internal tank
pressure must be reduced to a pont where? - answer It is at least 1 ounce
below atmospheric pressure.
, A suitable foundation for vertical tanks can be constructed with a finished
course of clean, compacted sand, gravel or crushed rock that is placed
over the base course. The base and the Finnish courses should extend at
least? - answer 12" beyond the perimeter of the tank.
to provide drainage and settlement the surface of which the tank bottom
rests should be at least? - answer 6" above the surrounding ground
surface.
Saddle supports for horizontal tanks may be constructed of? - answer
Steel or reinforced concrete and must be installed on a firm and suitable
foundation.
Fire codes require that tank saddles are? - answer higher than 12" above
the foundation. have a minimum fire rating of 2 hours and be constructed
of protected steel, masonary or reinforced concrete. roofing felt or
expansion joint is not an acceptable electrical isolation for tank saddles.
Reinforced concrete slabs are 6 to 12 inches thick and constructed to meet
28 day, minimum 3,000 psi strength requirement. - answer
when grounding a tank use #4 solid or stranded cable. - answer use #12
TW or THHN thin stranded or solid wire to bond components
the minimum opening in a vault for personal entry should be a diameter of
at least? - answer 30"
normal tank vent should extend not less then? - answer 12' above the
general grade level and be located at least 5 feet from building openings.
emergency vents may discharge inside vault but must remain vapor tight
during normal operation. Emergency shut off switch must be located
between 20 and 100 feet from the dispensers. enclosed wiring within class
1 division 1 areas must use a maximum 3' long of explosion proof flexible
fittings.
Access manways that are intended for personal entry into a tank must be
at least 24" diameter. - answer
