MSTS 653 Closed Book Practice Exam Test Questions and Answers
API 653 covers which of the following activities ? - Tank reconstruction
A new nameplate shall be added to a tank after : - it has been reconstructed
The impressed current sources of a cathodic protection system should be checked ( to see if still
operating ) every : - two months
A tank is 20 years old and has a bottom thickness of 0.170 " . Original bottom thickness was 0.250 " .
Determine the interval for the next Internal Inspection ? - 17.5 years
Which of the following is an advantage of the galvanic cathodic protection system ? - Annual
maintenance costs are generally low
Repaired or replaced bottom welds shall be examined with either a vacuum box or by using : - a tracer
gas test .
API 653 is intended to be used by Owner / Operator organizations that : - have access to engineers &
inspectors .
Which type of external floating - roof is the most susceptible to sinking ? - Pan
If an atmospheric tank is air tested , the pressure should not exceed : - 2 inches of water
When performing a Penetrant Test , various steps are performed List the following steps in the correct
order . - Clean surface, Add penetrant, Dwell, Remove excessive penetrant, Add developer, evaluate
, The welding position " 4G " is a ( n ) : - overhead plate groove weld
Closed Welders qualifications expire if : - they have not welded using the process within 6 months .
Which of the following new welds does not need to be examined by magnetic particle or liquid
penetrant methods ? - The insert plate - to - shell welds
Pitted roof plates in a floating roof shall not be less than : - what will cause a hole by the next
inspection .
The qualifications for the person performing the Routine In - Service Inspections includes : - being
knowledgeable of the tank operation
Prior to the work , all alterations must be authorized by the : - engineer
For a tank without a Release Protection Barrier , the maximum interval for the second Internal
Inspection is : - Lesser of 20 years or full remaining life of the bottom .
Certification of work performed is required after which activity ? - Tank reconstruction
Which of the following is not a significant factor in galvanic corrosion ? - Stray AC currents
The tank has a remaining shell life of 16 years . What is the maximum interval for the UT Thickness
Measurements on the Shell ? - 8 years
An in - service tank should never have a shell plate thinner than : - 0.100"
API 653 covers which of the following activities ? - Tank reconstruction
A new nameplate shall be added to a tank after : - it has been reconstructed
The impressed current sources of a cathodic protection system should be checked ( to see if still
operating ) every : - two months
A tank is 20 years old and has a bottom thickness of 0.170 " . Original bottom thickness was 0.250 " .
Determine the interval for the next Internal Inspection ? - 17.5 years
Which of the following is an advantage of the galvanic cathodic protection system ? - Annual
maintenance costs are generally low
Repaired or replaced bottom welds shall be examined with either a vacuum box or by using : - a tracer
gas test .
API 653 is intended to be used by Owner / Operator organizations that : - have access to engineers &
inspectors .
Which type of external floating - roof is the most susceptible to sinking ? - Pan
If an atmospheric tank is air tested , the pressure should not exceed : - 2 inches of water
When performing a Penetrant Test , various steps are performed List the following steps in the correct
order . - Clean surface, Add penetrant, Dwell, Remove excessive penetrant, Add developer, evaluate
, The welding position " 4G " is a ( n ) : - overhead plate groove weld
Closed Welders qualifications expire if : - they have not welded using the process within 6 months .
Which of the following new welds does not need to be examined by magnetic particle or liquid
penetrant methods ? - The insert plate - to - shell welds
Pitted roof plates in a floating roof shall not be less than : - what will cause a hole by the next
inspection .
The qualifications for the person performing the Routine In - Service Inspections includes : - being
knowledgeable of the tank operation
Prior to the work , all alterations must be authorized by the : - engineer
For a tank without a Release Protection Barrier , the maximum interval for the second Internal
Inspection is : - Lesser of 20 years or full remaining life of the bottom .
Certification of work performed is required after which activity ? - Tank reconstruction
Which of the following is not a significant factor in galvanic corrosion ? - Stray AC currents
The tank has a remaining shell life of 16 years . What is the maximum interval for the UT Thickness
Measurements on the Shell ? - 8 years
An in - service tank should never have a shell plate thinner than : - 0.100"
