For welded pipe - Study guides, Class notes & Summaries

Pressure applied inside a pipe creates stress in the pipe wall. These stresses are highest on which weld orientation? - ANSWER longitudinal weld Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal service? - ANSWER 10% for welded pipe, the normal thickness of under-tolerance is? - ANSWER .010 or 10 mils The corrosiveness of soils can be determined by measuring the soils: - ANSWER Resistivity when qualifying a weld procedure the essential variables must: -...

Plumbing Exam Questions and Answers 100% Solved Which backflow preventer is not a testable device? a. PVB b. DCAP c. RP d. DCVA - answerB A flat roof measuring 20m by 26m with a horizontal wall on one side extended up 6m by 20m. Size the circular rain water leader if the local 15 minute rain fall intensity is 24mm? a. 2 b. 7 c. 9 d. 6 - answerD This type of trap is not permitted in a drainage system? a. S trap standard b. bell trap c. P trap d. drum trap - answerB This is not a...

Plumbing Exam Questions and Answers 100% Solved Which backflow preventer is not a testable device? a. PVB b. DCAP c. RP d. DCVA - answerB A flat roof measuring 20m by 26m with a horizontal wall on one side extended up 6m by 20m. Size the circular rain water leader if the local 15 minute rain fall intensity is 24mm? a. 2 b. 7 c. 9 d. 6 - answerD This type of trap is not permitted in a drainage system? a. S trap standard b. bell trap c. P trap d. drum trap - answerB This is not a...

1.To measure the strength of a welded joint what mechanical test would you prescribe? a) A transverse weld tension test b) A charpy test. c) A CTOD test. d) An all weld metal tension test. e) A side bend test. - Answer a) A transverse weld tension test 2. Select the cutting process that would provide the narrowest heat affected zone when cutting 12.5 mm (0.5 in) thick carbon steel. a) Oxy-acetylene cutting. b) Air-carbon arc cutting. c) Oxy-propane cutting. d) Plasma arc cutting. e) L...

Which of the following drain pipes is typically used below grade? A) Copper B) Galvanized steel C) Cast iron D) Clay correct answer: The answer is CLAY. Clay drain pipes are typically used below grade. Common problems with sinks and basins include all of the following except A) excess pressure. B) rust. C) cross connections. D) leaks. correct answer: The answer is EXCESS PRESSURE. Excess pressure is not a common problem with sinks and basins. What is the component that in...

CWB1. To measure the strength of a welded joint what mechanical test would you prescribe? a) A transverse weld tension test b) A charpy test. c) A CTOD test. d) An all weld metal tension test. e) A side bend test. a) A transverse weld tension test 2. Select the cutting process that would provide the narrowest heat affected zone when cutting 12.5 mm (0.5 in) thick carbon steel. a) Oxy-acetylene cutting. b) Air-carbon arc cutting. c) Oxy-propane cutting. d) Plasma ar...

CWB Exam Study Guide 1.To measure the strength of a welded joint what mechanical test would you prescribe? a) A transverse weld tension test b) A charpy test. c) A CTOD test. d) An all weld metal tension test. e) A side bend test. - a) A transverse weld tension test 2. Select the cutting process that would provide the narrowest heat affected zone when cutting 12.5 mm (0.5 in) thick carbon steel. a) Oxy-acetylene cutting. b) Air-carbon arc cutting. c) Oxy-propane cutting. d) Plasma...

1.To measure the strength of a welded joint what mechanical test would you prescribe? a) A transverse weld tension test b) A charpy test. c) A CTOD test. d) An all weld metal tension test. e) A side bend test. - Answer- a) A transverse weld tension test 2. Select the cutting process that would provide the narrowest heat affected zone when cutting 12.5 mm (0.5 in) thick carbon steel. a) Oxy-acetylene cutting. b) Air-carbon arc cutting. c) Oxy-propane cutting. d) Plasma arc cutti...

Which backflow preventer is not a testable device? a. PVB b. DCAP c. RP d. DCVA - Answer- B A flat roof measuring 20m by 26m with a horizontal wall on one side extended up 6m by 20m. Size the circular rain water leader if the local 15 minute rain fall intensity is 24mm? a. 2 b. 7 c. 9 d. 6 - Answer- D This type of trap is not permitted in a drainage system? a. S trap standard b. bell trap c. P trap d. drum trap - Answer- B This is not an approved method for joining cast iro...

API 574 for API 570 Exam Questions and Answers 100% Pass API Recommended Practice 574, Inspection of Piping, Tubing Valves, and Fittings, does not cover: a. control valves. b. piping smaller than 2" NPS. c. tubing smaller than 1.5" diameter. d. fittings smaller than 2" NPS - Answer- A The refining industry generally uses what type piping for severe service? a. brass b. cast c. seamless d. longitudinal seam welded - Answer- C Piping made by rolling plates to size and welding the s...