visual specific pre-test Flashcards
specific exam
The crown or outside reinforcement of a pipe weld shall not exceed: A. 1/8 inch in center of crown B. 1.49mm C. 1/16" D. 1/8" E. B & C above
C. 1/16”
The width of the completed pipe weld shall be the:
A. thickness of the pipe wall plus 1/8”
B. width of the original groove
C. width of the original total groove plus 1/8”
D. Dime wide
E. none of the above
width of original total groove plus 1/8’’
When qualifying a procedure, specimens for nick break testing may be macroetched prior to being nicked:
A. For any welding process
B. automatic and semi-automatic processes only
C. for submerged arc welding only
D. this statement is incorrect
E. for shielded metal arc welding only
automatic and semi-automatic processes only
When testing the nick break test, the width of fracture must be at least: A. 1/8" B.3/4" C.19mm D.29mm E.B & D
B & D
Each nick break test specimen shall show complete penetration and fusion. Gas pockets and slag inclusions shall not exceed: A. 1/16 and 3/32 B. 1/32 and 3/8th C. 1/16 and 1/32 D. 1/2 and 1/32 E. 2% and 1/2
1/16 and 1/32
When using internal line-up clamps, the completed part of the root bead, before releasing clamp, shall be: A. 100% B. 50% C. 4 equally spaced segments D. approximately spaced segments E. C & D above
100%
In a welding procedure qualification test a reduced section tensile specimen measured 1/4" x 1" before testing and failed at a load of 16,250Ibs. What was the tensile strength in pounds per square inch of the specimen? A. 73,125 B. 65,000 C. 56,000 D. 6,500 E. None of the above
65,000
For mechanized production welding of pipe, which of the following changes in the welding procedure require requalification?
A. change in the filler metal wire size from .035’’ to .045’’
B. change in shielding gas from argon to helium
C. change in joint V-groove to U-groove
D. all of the above
E. not specified
all of the above
From pipe of 2'' outside diameter with a wall thickness of 0.125'', which of the following tests are required? A. tensile B. nick break C. root bend D. face bend E. A & B above
A & B above
For pipe of less than 1 5/16'' diameter, which of the following test are required? A. nick break B. full section tensile C. root bend D. face bend E. A & B above
Full section tensile
For qualification of welding procedures, the quality of the welds shall always be determined by: A. radiography B. destructive testing C. ultrasonic inspection D. all of the above E. none of the above
Destructive testing
A welding procedure must contain which of the following mechanical properties? A. strength B. ductility C. soundness D. hardness E. all of the above
All of the above
A welding procedure must be re-established when which of the following conditions exist?
A. grades of steel over 65,000psi
B. a change from E6010 to E7010 electrode
C. a change in welding process
D. a change from E7018 to E8018 electrode
E. a and c above
A and C
This standard covers the welding in which of the following facilities?
A. refineries
B. chemical plants
C. compression and pumping of petroleum products
D. all of the above
E. none of the above
all of the above
Which of the following welding processes are covered by this code? A. shielded metal arc welding B. oxy-acetylene welding C. submerged arc welding gas D. gas tungsten arc welding E. all of the above
all of the above