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Guide for U5-AST Installation/Retrofitting

Quiz U5-AST Installation/Retrofitting

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Quiz

1/10
AST Codes and Standards
Which code is the primary national consensus standard adopted in the United States that governs the installation of aboveground storage tanks containing flammable and combustible liquids?
Select the answer
1 correct answer
A.
NFPA 70
B.
NFPA 30
C.
NFPA 99
D.
NFPA 13

Quiz

2/10
Tank Construction and Materials
The minimum steel thickness for the shell of a UL 142 horizontal aboveground tank with a capacity of 1,100 gallons is generally specified as which gauge?
Select the answer
1 correct answer
A.
14 gauge
B.
12 gauge
C.
10 gauge
D.
7 gauge

Quiz

3/10
Foundation and Support Systems
The foundation for a vertical AST should be designed to support what minimum loading combination?
Select the answer
1 correct answer
A.
The empty tank weight only
B.
The weight of the tank, contents, equipment, and design wind and seismic forces
C.
The weight of the tank and equipment only, ignoring contents
D.
Only the shipping weight of the tank

Quiz

4/10
Venting Requirements
Normal venting on an atmospheric AST must be sized for which conditions at minimum?
Select the answer
1 correct answer
A.
Maximum filling rate, maximum withdrawal rate, and thermal effects
B.
Withdrawal rate only
C.
Filling rate only
D.
Wind speed only

Quiz

5/10
Overfill Prevention and Spill Control
An audible high-level alarm on an AST should typically activate at:
Select the answer
1 correct answer
A.
Approximately 90 percent of tank capacity
B.
100 percent of tank capacity
C.
50 percent of tank capacity
D.
25 percent of tank capacity

Quiz

6/10
Secondary Containment and Dikes
The minimum dike capacity for a single tank is generally:
Select the answer
1 correct answer
A.
The capacity of the tank, with allowance for displaced volume of structures inside the dike
B.
Half the capacity of the tank
C.
Twice the capacity of the tank
D.
One tenth of the capacity of the tank

Quiz

7/10
Corrosion Protection
The two principal forms of cathodic protection used on steel ASTs are:
Select the answer
1 correct answer
A.
Galvanic (sacrificial) and impressed current systems
B.
Inductive and capacitive systems
C.
Magnetic and electric systems
D.
Liquid and solid systems

Quiz

8/10
Piping Systems
Piping carrying flammable or combustible liquids in AST systems must be:
Select the answer
1 correct answer
A.
Designed and installed per applicable piping codes and listed for the service
B.
Made of any material at hand
C.
Plastic for cost savings
D.
Garden hose for flexibility

Quiz

9/10
Leak Detection and Monitoring
Interstitial monitoring of a double-wall AST detects leaks by:
Select the answer
1 correct answer
A.
Sensing changes in the interstitial space such as liquid presence, pressure, or vacuum
B.
Counting product molecules
C.
Measuring tank weight
D.
Checking the tank temperature

Quiz

10/10
Tank Testing and Integrity
The hydrostatic test of a newly installed tank is intended to:
Select the answer
1 correct answer
A.
Verify structural integrity at design loading and identify any leaks before service
B.
Increase tank capacity
C.
Measure tank weight
D.
Train operators
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Info quiz:

  • Quiz name:U5-AST Installation/Retrofitting
  • Total number of questions:508
  • Number of questions for the test:50
  • Pass score:80%

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