Chapter 1 Flashcards

1
Q

Contractor

A

Includes the primary contractor and any subcontractors engaged in work covered by this standard.

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2
Q

Weld

A

Refers to the completed weld joining two sections of a pipe, a section of pipe to the fitting, or two fittings.

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3
Q

Qualified welding procedure

A

A tested and proven detailed method by which sound welds with suitable mechanical properties can be produced.

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4
Q

Welder

A

A person who makes a weld.

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5
Q

Qualified welder

A

A welder who has demonstrated his ability to produce welds that meet the requirements
See section 2 or 3

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6
Q

Root bead

A

The first or stringer bead that initially joins two sections of pipe, a section of pipe to a fitting, or two fittings.

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7
Q

Position welding

A

Welding in which the pipe or assembly is held stationary.

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8
Q

Roll welding

A

A welding in which the pipe or assembly is rotated while the weld metal is deposited at or near the top center.

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9
Q

The term “shall” and “should”

A

Shall - indicates a mandatory requirement

Should - indicates a recommended practices

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10
Q

Automatic welding

A

Refers to an arc welding with equipment that performs the entire welding operation without manual manipulation of the arc or electrode other than guiding or tracking and without a manual welding skill requirement of the operator

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11
Q

Semiautomatic welding

A

Refers to arc welding with equipment that controls only the filler-metal feed. The advance of welding is manually controlled.

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12
Q

Internal concavity

A

A bead that is properly fused to and completely penetrates the pipe wall thickness along both sides of the bevel, but whose center is somewhat below the inside surface of the pipe wall.

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13
Q

Magnitude of concavity

A

Is the perpendicular distance between an axial extension of the pipe wall surface and the lowest point on the weld bead surface.

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14
Q

Repair

A

Is any rework on a completed weld that requires welding to correct a fault in the weld that has been discovered by visual or nondestructive testing and is beyond this standard’s limits of acceptability.

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15
Q

Radiographer

A

Is a person who performs radiographic operations.

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16
Q

Storage and handling of filler metals and fluxes

A
  • Must be stored and handled to avoid damage to them
  • Opened container must be protected from deterioration and filler metal must be protected from the changes in moisture
  • Must not be used if damaged
17
Q

Shielding Gases

Type of gases that shield an arc:

A

Inert gases, active gases, mixtures of inert and active gases.

18
Q

Filler Metal

A

is a metal added in the making of a joint through welding, brazing, or soldering.

19
Q

Company

A

The owner company or the engineering agency in charge of the construction