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ICC S1C Structural Steel &
Bolting Exam Test Bank 202 7 |
Welding & Bolting Inspection
Practice Questions, Steel
Construction Codes &
Certification Prep
A welding operator successfully completed performance qualification using multiple SAW electrodes. Can he weld using a single SAW electrode? - ANSWER- Yes, that does not warrant requalification What is the minimum length of a fillet weld? - ANSWER-4 times the nominal size of the fillet Does the 5G welding position rotate during welding? - ANSWER-No When using an FCAW reinforcing steel WPS, a requalification. % increase in amperage requires WPS requalification. - ANSWER-More than 10%
What's the acceptance criteria for a bend test on a stud during stud base qualification? - ANSWER-Fracture can't occur in the weld or HAZ. A fillet weld in a tubular connection is specified to measure 1/4-inch in size and 10 inches in length. What is the minimum allowable fillet weld size? - ANSWER-5/32- inch for a 1 inch length. What does HAZ stand for? - ANSWER-Heat affected zone. A fillet weld in a tubular connection is specified to measure 7/8-inch in size and 5 inches in length. What is the minimum allowable fillet weld size? - ANSWER-3/4- inch for a 1/2-inch length. A welder's PQR tests successfully pass for a flare-V-groove weld using sheet to sheet steel in the overhead position. What positions is the welder qualified to weld in? - ANSWER-Flat, horizontal, overhead Special inspection tasks and frequencies are found in which publication? - ANSWER-AISC 360 A 1 inch thick test plate is welded with ESW using a CJP groove welds for WPS qualification and meets acceptance criteria. What plate thickness range is qualified? - ANSWER-1/2 inch to 1.1 inches
Which test position qualifies a welder to weld in all positions for production box tube welds on T, Y, or K connections? - ANSWER-6GR For rebar welder qualification, what tests need to be conducted on an indirect butt weld joint? - ANSWER-2 macroetch A 3/4-inch thick test plate is welded with a CJP groove weld for WPS qualification and meets acceptance criteria. What tubing wall thickness is qualified for use on a WPS? - ANSWER-1/8-inch to 1-1/2 inches What's the maximum amount of reinforcement for a groove weld in a butt joint for #8 reinforcing steel? - ANSWER-1/8-inch A PJP groove butt weld has a face width of 3/4-inch, a 1/2-inch throat, and a 1/4- inch root face. The base metals are each 1 inch thick. What is the weld size? - ANSWER-1/2-inch Which of the following elements are required in a welding symbol? - ANSWER- Reference Line What's the weld face width for a prequalified sheet steel WPS that uses a flare-V- groove weld in a butt joint? - ANSWER-At least twice the thickness of the sheet steel
What's the maximum depth of acceptable undercut for sheet steel? - ANSWER- Doesn't need to be inspected When qualifying a CJP groove weld WPS using a 3/8-inch thick test plate, what type of destructive tests are required? - ANSWER-2 reduced-section tension, 4 side bend When using a prequalified WPS with the SAW process, the welding travel speed can change without using a new WPS as long as: - ANSWER-The new travel speed isn't more than 25% above or below the travel speed on the WPS An ASTM A871 Grade 65 test plate was tension tested for WPS qualification. The 2 tensile test results were 64,950 psi and 67,300 psi. Do these meet acceptance criteria? - ANSWER-No, they are both less than the minimum required tensile strength. A change in wire feed speed of a prequalified sheet steel WPS doesn't require WPS requalification for which welding process? - ANSWER-SMAW What happens if SMAW electrodes get wet? - ANSWER-They shall not be used What's the maximum acceptable length of undercut for a 16-inch long fillet weld on sheet steel? - ANSWER-2 inches After performing an arc plug weld torsion test for sheet steel WPS qualification, what is the minimum acceptable measured diameter of the resulting weld nugget? - ANSWER-3/8-inch
According to AISC, who typically provides the shop drawings? - ANSWER- Fabricator What's the maximum qualified sheet steel thickness for a welder who successfully welds PQR test specimens using an arc seam weld on 1/16-inch sheet steel to a structural steel support? - ANSWER-1/16-inch How would you identify the shear strength of a seam weld in a welding symbol? - ANSWER-Referencing the number left of the weld symbol Which welding code most likely applies when welding structural steel that is less than 1/8-inch thick? - ANSWER-D1. A welder successfully welded a WPQR test plate using a groove weld with an inclination of axis at 10 degrees and a rotation of face at 270 degrees. What positions is the welder qualified to weld during production? - ANSWER-Flat and horizontal A welder successfully performs WPQR tests using SMAW E7014 electrodes. What electrodes is he qualified to use during production welding? - ANSWER-E What's the minimum preheat for a #6 rebar with an unknown CE? - ANSWER- 300 degrees F
According to AISC, which 2 inspection tasks are the Quality Assurance Inspector required to perform? - ANSWER-Check that WPSs are available, Inspect arc strikes According to AISC, which 2 inspection tasks are the Quality Assurance Inspector required to perform? - ANSWER-Check that WPSs are available, Inspect arc strikes In SMAW, what causes the base metals to melt? - ANSWER-Arc What angle are studs bent to when performing production control bend tests? - ANSWER-30 Degrees What's the maximum allowable crack in a fillet weld for a statically loaded nontubular connection? - ANSWER-No Cracks are allowed What is required of SMAW electrodes when welding studs that are larger than 7/16-inch? - ANSWER-They must be low-hydrogen with a diameter of 5/32-inch or 3/16-inch When used for are spot welding with sheet steel, weld washers must have a minimum prepunched hole diameter of: - ANSWER-3/8-inch What is the maximum allowable variation in straightness for a 60 foot long column according to D1.1? - ANSWER-9/16-inch
Which welding process uses tubular electrodes with flux inside of them? - ANSWER-FCAW Can prequalified post weld heat treatment be used on a weldment that uses ASTM A595 grade A steel that was not quenched or tempered? - ANSWER-No, the base metal yield strength is too high. Where would the root opening of a groove weld go on a welding symbol? - ANSWER-Inside the weld symbol What's the maximum allowable crack in a fillet weld for a statically loaded nontubular connection? - ANSWER-No cracks are allowed What's the minimum preheat for #9 ASTM A615 rebar with a CE of 0.90%? - ANSWER-500 degrees F Where would the number of studs be located in a stud welding symbol? - ANSWER-Below the weld symbol If a 3 inch schedule 40 pipe is successfully welded for a PQR test specimen, what is the maximum pipe thickness qualified? - ANSWER-3/4-inch What's the maximum prequalified root pass thickness for GMAW in the vertical position? - ANSWER-1/2-inch
Which welding code most likely applies when welding structural steel that is less than 1/8-inch thick? - ANSWER-D1. Which of the following is not required for cleaning a weld that does not specify NDT? - ANSWER-Remove tightly adhered spatter What's the minimum prequalified preheat temperature for a weldment that uses 2 - inch ASTM A501 steel and is welded with low hydrogen SMAW electrodes? - ANSWER-150 degrees F What's the minimum fillet weld size for a 7/16-inch diameter stud if fillet welding is used? - ANSWER-3/16-inch According to AISC, the Inspector must document acceptance or rejection of how many welded connections in a structure? - ANSWER-Each one What's the minimum required tensile strength for reinforcing steel welds used in WPS qualification? - ANSWER-125% of the rebar tensile strength What is the minimum required fillet weld size when the base metal is 2-1/2 inches thick? - ANSWER-5/16-inch When base metals are below 32 degrees F, how many additional studs must be bend tested? - ANSWER-1 out of every 100 studs
A groove weld is made with an inclination of axis at 45 degrees and a rotation of face at 90 degrees. What is the welding position? - ANSWER-Vertical What's the maximum qualified sheet steel thickness for a welder who successfully welds PQR test specimens using an arc seam weld on 1/16-inch sheet steel to a structural steel support? - ANSWER-1/16-inch What's the minimum prequalified fillet weld size in a statically loaded structure when the base metal is 1 inch thick? - ANSWER-5/16-inch What is the minimum prequalified matching electrode tensile strength when welding ASTM A913 Grade 70 steel to ASTM A852 steel? - ANSWER-90,000 psi AWPS specifies a 10-inch per minute wire feed speed for FCAW. Can this WPS be used if the welder wants to implement a 12 inch per minute wire feed speed? - ANSWER-No, it exceeds a 10% wire feed speed change When should preheat and interpass temperatures be checked? - ANSWER-Just prior to initiating the arc for each weld pass What is the minimum prequalified preheat temperature for a weldment that uses 3/4-inch thick ASTM A grade C steel with the GMAW process when the base metal is 30 degrees F? - ANSWER-70 degrees F
Can ASTM A572 grade 65 steel be welded to ASTM A573 grade 58 steel in a prequalified WPS? - ANSWER-Yes, both steels are considered prequalified RT and PT stand for: - ANSWER-Radiographic Testing and Liquid Penetrant Testing When qualifying a CJP groove weld WPS using a 3/8-inch thick test plate, what type of destructive tests are required? - ANSWER-2 reduced-section tension, 4 side bend For ASTM A500 tubular steel production welds, when can visual inspection begin?
- ANSWER-Immediately after welds have cooled to ambient temperature Which of the following elements are required in a welding symbol? - ANSWER- Reference line Name a prequalified welding process? - ANSWER-SAW What happens when a crack is discovered in the weld? - ANSWER-Ascertain the extent of the crack, remove the crack and 2 inches of sound metal beyond the crack, then reweld A PJP groove butt weld has a face width of 3/4-inch, a 1/2-inch throat, and a 1/4- inch root face. The base metals are each 1 inch thick. What is the weld size? - ANSWER-1/2-inch
When using a prequalified PS with the SAW process, the welding travel speed can change without using a new WPS as long as: - ANSWER-The new travel speed isn't more than 25% above or below the travel speed on the WPS A fillet weld in a tubular connection is specified to measure 7/8-inch in size and 5 inches in length. What is the minimum allowable fillet weld size? - ANSWER-3/4- inch for a 1/2-inch length A welder successfully welds a WPQR pipe test specimen in the 1F rotated position, what positions does that qualify for production plate welding? - ANSWER-Flat What's the minimum prequalified weld size for a PJP J-groove weld on 3/4-inch thick base metal? - ANSWER-1/4 inch Which of the following welding processes are allowed for reinforcing steel welding? - ANSWER-SMAW, FCAW, GTAW, and GMAW When inspecting groove welds on a test plate for performance qualification, the maximum allowable undercut is: - ANSWER-1/32-inch A fillet weld is made with an inclination of axis at 10 degrees and a rotation of face at 145 degrees. What is the welding position? - ANSWER-Horizontal What's the maximum qualified sheet steel thickness for a welder who successfully welds PQR test specimens using an arc seam weld on 1/16-inch sheet steel to a structural steel support? - ANSWER-1/16-inch
A contractor performs a plug weld in the horizontal position on a test plate for WPS qualification. What plug weld positions would this qualify if acceptance criteria is met? - ANSWER-Horizontal What's the maximum allowable piping porosity in a fillet weld within a 6-inch length of the weld for reinforcing Steel? - ANSWER-9/16-inch Peening cannot be performed on: - ANSWER-The root or surface layer of a weld When a fabricator is required to perform stress-relief heat treatment on fabricated steel, what is the maximum rate of heating above 600 degrees F for steel that is 2 inches thick? - ANSWER-200 degrees F When welding a tubular butt joint WPQR test specimen, what is the maximum allowable root opening? - ANSWER-1/8-inch A 3/4-inch thick test plate is welded with a CJP groove weld for WPS qualification and meets acceptance criteria. What tubing wall thickness is qualified for use on a WPS? - ANSWER-1/8-inch to 1-1/2 inches If a laminar discontinuity that measures 1-1/2 inches in length and 1/8-inch in depth is observed in a base metal, what should happen? - ANSWER-No repair required, but explore the depth using NDT to make sure it's not worse than observed
If allowed by filler metal specifications, a performance qualification test specimen can age at 200 to 220 degrees F for hours before being tested. - ANSWER-46 to 50 hours A welder successfully performs WPQR tests using SMAW E7014 electrodes. What electrodes is he qualified to use during production welding? - ANSWER-E A welder successfully welds a WPQR pipe test specimen for production CJP groove butt joints using a 6 inch test pipe with 3/8-inch thick walls. What is the minimum plate thickness qualified? - ANSWER-1/8-inch Weld washers are used with sheet steel when: - ANSWER-The sheet steel for an arc spot weld is less than 0.028 inches thick In a welding symbol, what would "2 (1)" on the left side of the groove weld symbol indicate? - ANSWER-A 2 inch depth of bevel and a 1 inch throat What is the maximum fillet weld size along the edge of a lap joint when the base metal is 3/16-inch thick? - ANSWER-3/16-inch What are weld tabs used for? - ANSWER-Extending the joint preparation to ensure sound welds For WPS qualification, what type of tests are required on an 8 inch schedule 80 standard pipe test specimen? - ANSWER-2 reduced section tension and 4 side bend
Which tube steel joint configuration does not have a prequalified joint detail in AWS D1.1? - ANSWER-CJP groove weld in butt joint made from 1 side with no backing What's the maximum allowable porosity for a 1-inch thick CJP groove weld in a butt joint that is transverse to the computed tensile stress in a statically loaded nontubular connection? - ANSWER-None A welder successfully welded a pipe test specimen in the 5G position. What fillet weld positions is he qualified to make using box tubes? - ANSWER-Flat, vertical, and horizontal What tests are required for welder qualification of production CJP groove butt joints when the test specimen is a 5 inch test pipe with 3/8-inch thick walls and is welded in the 2G position? - ANSWER-1 face bend and 1 root bend For rebar welder qualification, what tests need to be conducted on an indirect butt weld joint? - ANSWER-2 macroetch A welding operator successfully completed performance qualification using multiple SAW electrodes. Can he weld using a single SAW electrode? - ANSWER- Yes, that does not warrant requalification How would a field weld be indicated in a welding symbol? - ANSWER-A flag at the junction of the reference line and arrow
