API RP 577 PRACTICE QUESTIONS & ANSWERS
API 577_______ for the training and experience required to be an American Welding
Society Certified Welding Inspector(CWI) - Answers - is not a replacement
API 577______ all welds to be inspected. - Answers - does not require
Who determines the welds to be inspected?? - Answers - Welding inspectors and/or
engineers
Who should be consulted on any critical , specialized or complex welding issues? -
Answers - A welding engineer
Three of the items listed below are welding inspection activities that can be separated
into three stages corresponding to the welding work process. Which one does not
belong?? - Answers - Tasks in selecting personnel
Which of the basic arc welding processes is the most widely used? - Answers - SMAW
How is shielding provided for the arc when using a consumable covered electrode in
shielded metal - Answers - Shielding is provided from the decomposition of the
electrode covering
What are some disadvantages or limitations of shielded metal arc welding? - Answers
- Deposition rates are low and slag must be removed at stops and starts.
What does the DCEN stand for when used to describe the GTAW weld process? -
Answers - DCEN stands for direct current electrode-negative .
What are some of the advantages to gas tungsten arc welding ? - Answers - It
produces high purity welds and it allows for excellent control of root pass weld
penetration.
What is a welding process that produces fast a freezing weld pool and is generally
suited for joining thin sections or root passes. - Answers - GMAW-S
What type of weld process normally employs a semiautomatic mode and depends on a
flux from a tubular electrode that contains a shielding gas from an externally supplied
gas? - Answers - FCAW
What type of welding is used extensively in shop pressure vessel fabrication and pipe
manufacturing? - Answers - SAW
What type of welding process is predominantly limited to welding insulation and
refractory support pins to tanks, pressure vessels and heater casings? - Answers - SW
, What is the definition of non-destructive examination? - Answers - It is inspection
methods,which allow materials to be examined without changing or destroying their
usefulness.
What are the most commonly used NDE methods used during weld inspection ? NOTE:
SELECT THE ANSWER THAT HAS ALL THE CORRECT METHODS!!!! - Answers -
VT, MT, WFMT, PT, LT, ET, RT, UT, ACFM.
Where would you look for slag inclusion discontinuities? - Answers - Weld metal zone
and weld interface.
Which NDE method is the most acceptable for a lap joint ? - Answers - PT
What is the most capable NDE method for finding a discontinuity such as incomplete
fusion in a joint ? - Answers - UT
When welding carbon steel, what is the major cause of lack of fusion in all welding
processes? - Answers - improper heat input and improper welding technique.
When welding stainless steel what would cause porosity in the weld? - Answers -
Improper shielding, not using a low hydrogen electrode, & welding in a high sulfur area.
When welding stainless steel, what is the cause of undercut? - Answers - fast travel
speed.
what are the two types of material test reports ? - Answers - a heat analysis and a
product analysis
typically ,steels with a carbon equivalent of less that___ require no preheat - Answers -
0.35
Steels with a carbon equivalent of higher than ___ require both preheat PWHT. -
Answers - 0.55
What are the two main concerns when welding on in service piping and equipment ? -
Answers - burn through and cracking
hot tap and in service welding operations should be carried out only with low-hydrogen
consumables and electrodes such as : - Answers - E7018
carbon steels with a carbon equivalent (CE) greater than ___ should be welded with an
extra low hydrogen electrode such as EXXXX-H4 . - Answers - 0.43%
liquid flow rates in piping to be hot tapped shall be between __ feet per second and ___
feet per second - Answers - 1.3,4.0
API 577_______ for the training and experience required to be an American Welding
Society Certified Welding Inspector(CWI) - Answers - is not a replacement
API 577______ all welds to be inspected. - Answers - does not require
Who determines the welds to be inspected?? - Answers - Welding inspectors and/or
engineers
Who should be consulted on any critical , specialized or complex welding issues? -
Answers - A welding engineer
Three of the items listed below are welding inspection activities that can be separated
into three stages corresponding to the welding work process. Which one does not
belong?? - Answers - Tasks in selecting personnel
Which of the basic arc welding processes is the most widely used? - Answers - SMAW
How is shielding provided for the arc when using a consumable covered electrode in
shielded metal - Answers - Shielding is provided from the decomposition of the
electrode covering
What are some disadvantages or limitations of shielded metal arc welding? - Answers
- Deposition rates are low and slag must be removed at stops and starts.
What does the DCEN stand for when used to describe the GTAW weld process? -
Answers - DCEN stands for direct current electrode-negative .
What are some of the advantages to gas tungsten arc welding ? - Answers - It
produces high purity welds and it allows for excellent control of root pass weld
penetration.
What is a welding process that produces fast a freezing weld pool and is generally
suited for joining thin sections or root passes. - Answers - GMAW-S
What type of weld process normally employs a semiautomatic mode and depends on a
flux from a tubular electrode that contains a shielding gas from an externally supplied
gas? - Answers - FCAW
What type of welding is used extensively in shop pressure vessel fabrication and pipe
manufacturing? - Answers - SAW
What type of welding process is predominantly limited to welding insulation and
refractory support pins to tanks, pressure vessels and heater casings? - Answers - SW
, What is the definition of non-destructive examination? - Answers - It is inspection
methods,which allow materials to be examined without changing or destroying their
usefulness.
What are the most commonly used NDE methods used during weld inspection ? NOTE:
SELECT THE ANSWER THAT HAS ALL THE CORRECT METHODS!!!! - Answers -
VT, MT, WFMT, PT, LT, ET, RT, UT, ACFM.
Where would you look for slag inclusion discontinuities? - Answers - Weld metal zone
and weld interface.
Which NDE method is the most acceptable for a lap joint ? - Answers - PT
What is the most capable NDE method for finding a discontinuity such as incomplete
fusion in a joint ? - Answers - UT
When welding carbon steel, what is the major cause of lack of fusion in all welding
processes? - Answers - improper heat input and improper welding technique.
When welding stainless steel what would cause porosity in the weld? - Answers -
Improper shielding, not using a low hydrogen electrode, & welding in a high sulfur area.
When welding stainless steel, what is the cause of undercut? - Answers - fast travel
speed.
what are the two types of material test reports ? - Answers - a heat analysis and a
product analysis
typically ,steels with a carbon equivalent of less that___ require no preheat - Answers -
0.35
Steels with a carbon equivalent of higher than ___ require both preheat PWHT. -
Answers - 0.55
What are the two main concerns when welding on in service piping and equipment ? -
Answers - burn through and cracking
hot tap and in service welding operations should be carried out only with low-hydrogen
consumables and electrodes such as : - Answers - E7018
carbon steels with a carbon equivalent (CE) greater than ___ should be welded with an
extra low hydrogen electrode such as EXXXX-H4 . - Answers - 0.43%
liquid flow rates in piping to be hot tapped shall be between __ feet per second and ___
feet per second - Answers - 1.3,4.0
