API 577 Welding Inspection and Metallurgy Professional Exam Prep FREE Sample Exam

A pipe is fixed with its axis vertical and cannot be rotated, so the circumferential groove weld is made in the horizontal plane around it. Which pipe position is this?

1G

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2G, the position with the pipe axis vertical and the groove weld made horizontally on a fixed pipe

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5G

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6G

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In arc welding vocabulary, what is the electrode?

The workpiece clamp that completes the circuit through the table only

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Any wire stored in the shop for later use

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The insulated holder the welder grips, never carrying current

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The component that conducts welding current to establish the arc, which may also supply filler metal

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Why can FCAW generally tolerate more wind than GMAW before porosity becomes a problem, even in its gas-shielded form?

FCAW weld metal cannot absorb nitrogen or oxygen

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Wind increases FCAW deposition so defects are buried harmlessly

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The tubular wire is heavier, so the arc cannot be blown off course

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The flux-generated gases and slag provide protection in addition to any external gas, so shielding does not depend on gas alone

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A P-number change is proposed together with a thickness increase beyond the qualified range. How many qualification problems are present?

Two independent essential problems, and qualification must resolve both before production

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One, because the larger change absorbs the smaller

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Two, but either one alone can be waived by the inspector

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None, if they are made on the same day

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During procedure qualification, what must be recorded on the Procedure Qualification Record regarding essential variables?

Only the broad ranges the Welding Procedure Specification intends to allow in production

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The actual values used when welding the test coupon

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Only the nonessential variables, because essential variables are taken from the Welding Procedure Specification

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The values planned for a future production weld rather than the coupon weld

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Radiography as a bend-test substitute has a notable process limitation. Which process application is excluded at framework level?

SMAW cannot be radiographed under any circumstances

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GTAW coupons dissolve under radiation

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Short-circuiting transfer GMAW cannot be qualified by radiography in place of bends

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No process has any limitation

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Peyton’s WPQ shows qualification with backing on plate in the flat and horizontal positions. A job needs vertical groove welds without backing. How many coverage gaps exist?

None; any groove record covers all groove work

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One: only the backing differs

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Three: position, backing, and plate versus plate

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Two: position and backing condition are both outside the record

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An image quality indicator cannot be seen clearly on a radiograph that otherwise shows the weld. What does that mean for the examination?

The weld is automatically acceptable because the weld area is visible

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The indicator is optional decoration with no role

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The required sensitivity has not been demonstrated, so the radiograph does not meet the technique requirement and generally must be redone

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The flaws present are all acceptable by default

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Two plates of noticeably different thickness are butt welded without the transition the drawing requires. Why does the inspector flag the fit-up?

The abrupt thickness change concentrates stress and offsets the joint, harming alignment and load path

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Different thicknesses can never be welded together under any design

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The thinner plate will always melt away completely during welding

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Thickness differences only affect the weight of the finished part

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For finding tight surface cracks in a ferromagnetic weld after grinding a repair excavation, which pairing of purpose and method is most appropriate?

Radiography to confirm the surface is crack-free

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Visual alone because grinding always removes cracks fully

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Magnetic particle or liquid penetrant surface examination to verify no crack remains before rewelding

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Ultrasonic thickness readings to prove surface soundness

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Why does carbon have a much stronger effect per percent than most other elements in the carbon equivalent concept?

Carbon is the only element present in steel

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A small change in carbon strongly changes hardenability and the hardness of any martensite formed, so it dominates cracking behavior

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Other elements have no effect at all on hardenability

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Carbon lowers hardness more than any other element

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An operator suggests raising the postweld heat treatment temperature well above specification to finish faster. Why refuse?

Higher temperature is always safe for steel

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Overshooting can over-temper and weaken the material, alter structures, and in some alloys enter damaging ranges, so the specified window must be held

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The specification window is only a suggestion about furnace settings

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Speed is the primary quality criterion

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API 577 Welding Inspection and Metallurgy Professional Exam Prep FREE Sample Exam — Fixed Set

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