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Questions and Answers
What is the main purpose of field metallographic replication (FMR) when inspecting nozzles?
What is the main purpose of field metallographic replication (FMR) when inspecting nozzles?
- To detect brittle fracture
- To determine the onset of fatigue damage (correct)
- To identify mid-wall delamination
- To assess high temperature creep damage
What is the required RT Category for a nozzle butt weld with a joint thickness of 1.75 in. (44.5 mm)?
What is the required RT Category for a nozzle butt weld with a joint thickness of 1.75 in. (44.5 mm)?
- None
- Full (correct)
- Spot with a joint efficiency of 0.85
- Spot with a joint efficiency of 0.80
A vertical vessel constructed with a plate thickness of 0.875 in. has a measured thickness of 0.820 in. after 5 years of service. What is the current required thickness of this vessel?
A vertical vessel constructed with a plate thickness of 0.875 in. has a measured thickness of 0.820 in. after 5 years of service. What is the current required thickness of this vessel?
- 1.335 in
- 0.667 in. (16.93 mm)
- 0.055 in (1.4 mm) (correct)
- 0.820 in. (20.8 mm)
In controlled deposition welding with special hardness limits for stress corrosion cracking resistance, where should the hardness requirements be included?
In controlled deposition welding with special hardness limits for stress corrosion cracking resistance, where should the hardness requirements be included?
What can cause cracking in deaerators in boiler feedwater systems?
What can cause cracking in deaerators in boiler feedwater systems?
What is the term used to describe an interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical metallurgical, or physical characteristics?
What is the term used to describe an interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical metallurgical, or physical characteristics?
Which of the following factors contribute most to brittle fracture?
Which of the following factors contribute most to brittle fracture?
Which of the following is not required in pressure vessel records pertinent to its mechanical integrity?
Which of the following is not required in pressure vessel records pertinent to its mechanical integrity?
When it is necessary to postweld heat-treat a vessel in more than one heat due to length, what is the minimum overlap of the heated sections?
When it is necessary to postweld heat-treat a vessel in more than one heat due to length, what is the minimum overlap of the heated sections?
What is the main purpose of field metallographic replication (FMR) when inspecting nozzles?
What is the main purpose of field metallographic replication (FMR) when inspecting nozzles?
What is the term used to describe an interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical, metallurgical, or physical characteristics?
What is the term used to describe an interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical, metallurgical, or physical characteristics?
Which of the following factors contribute most to brittle fracture?
Which of the following factors contribute most to brittle fracture?
What is the required RT Category for a nozzle butt weld with a joint thickness of 1.75 in. (44.5 mm)?
What is the required RT Category for a nozzle butt weld with a joint thickness of 1.75 in. (44.5 mm)?
When it is necessary to postweld heat-treat a vessel in more than one heat due to length, what is the minimum overlap of the heated sections?
When it is necessary to postweld heat-treat a vessel in more than one heat due to length, what is the minimum overlap of the heated sections?
What can cause cracking in deaerators in boiler feedwater systems?
What can cause cracking in deaerators in boiler feedwater systems?
Which of the following is used to verify the density of stop wedge comparison films and densitometer calibration?
Which of the following is used to verify the density of stop wedge comparison films and densitometer calibration?
What factor contributes most to brittle fracture?
What factor contributes most to brittle fracture?
What term describes an interruption of the typical structure of a material?
What term describes an interruption of the typical structure of a material?
Which insulation system can increase corrosion rates under insulation?
Which insulation system can increase corrosion rates under insulation?
What type of information is NOT required in pressure vessel records pertinent to its mechanical integrity?
What type of information is NOT required in pressure vessel records pertinent to its mechanical integrity?
What is the minimum overlap of heated sections when it is necessary to postweld heat-treat a vessel in more than one heat due to length?
What is the minimum overlap of heated sections when it is necessary to postweld heat-treat a vessel in more than one heat due to length?
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