U3 ICC TANK TIGHTNESS TESTING TEST
BANK 260 PLUS QUESTIONS WITH
COMPLETE ANSWERS ACCURATE REVIEW
MATERIAL GRADED A+
⩥ 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.
⩥ operating/ design pressure
, 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.
BANK 260 PLUS QUESTIONS WITH
COMPLETE ANSWERS ACCURATE REVIEW
MATERIAL GRADED A+
⩥ 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.
⩥ operating/ design pressure
, 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.
