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API-577 Welding Inspection and Metallurgy Exam Questions and Answers

Questions 4

The carbon equivalent formula indicates:

Options:

A.

Whether postweld heat treatment (PWHT) will be needed.

B.

Whether preheat will be needed.

C.

The theoretical carbon content of a steel.

D.

The weldability of a steel, based on carbon content.

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Questions 5

As a result of welding, metals with a high coefficient of thermal expansion are:

Options:

A.

More susceptible to distortion during welding.

B.

Less susceptible to cracking during welding.

C.

More susceptible to brittle fracture.

D.

Less susceptible to brittle fracture.

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Questions 6

What is the minimum liquid level that should be maintained above the area that is to be hot tapped on a storage tank or vessel?

Options:

A.

1 ft. (300 mm)

B.

2 ft. (600 mm)

C.

3 ft. (900 mm)

D.

4 ft. (1200 mm)

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Questions 7

According to the PQR 8025, does the thickness range qualified concur with the thickness range as stated on the WPS 802?

Options:

A.

Yes, but only for thicknesses greater than .280"

B.

No, the material thickness on the PQR should be .375"

C.

Yes, the PQR qualifies the ranges as stated on the WPS

D.

No, the PQR thickness should have been .560"

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Questions 8

When radiographic examination is used for welder qualification utilizing the GMAW-S process, the minimum length of the test coupon to be examined is:

Options:

A.

Radiographic examination is not allowed.

B.

The entire weld circumference for pipe coupon.

C.

36 in. for welder operator qualification.

D.

6 in. for welder qualification.

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Questions 9

The direction of magnetic flux can be confirmed by the use of a:

Options:

A.

Pie gauge.

B.

Magnetic-field-sensitive crayon.

C.

Flux line sensitizer.

D.

Calibration gauge.

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Questions 10

Which of the following statements concerning electrode storage in ovens is true?

Options:

A.

Electrodes should never be stored in an oven that is used for food storage.

B.

Low-hydrogen electrodes may be stored in ovens with cellulose-based electrodes, but must be in their original, unopened containers.

C.

Electrode ovens should be heated by any means, but must have automatic heat controls and visible temperature indicators.

D.

Low-hydrogen electrodes should never be stored with stainless-steel electrodes.

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Questions 11

API Recommended Practice 577 provides:

Options:

A.

A definition of welds that should be inspected in refinery and chemical plant equipment.

B.

A definition of specific techniques and practices that should be used for welding inspection.

C.

Guidance on the extent and scope of inspection required for specific types of welds.

D.

Guidance on welding inspection during the fabrication and repairing of refinery equipment and piping.

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Questions 12

A-number groupings are based upon the:

Options:

A.

Chemical composition of the deposited weld metal.

B.

Comparable base metal ultimate strength values.

C.

Weldability characteristics of the metal.

D.

Type and strength of base metal.

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Questions 13

General awareness of metallurgy is important to the welding inspector because:

Options:

A.

Welding processes can affect both mechanical and corrosion properties of a weldment.

B.

The crystalline structure of base metals affects the resulting structure of the weld.

C.

Physical properties of the final weldment can be significantly affected by preheat and postweld heat treatment (PWHT).

D.

A thorough knowledge of weld metal structures is necessary to understand weldability.

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Questions 14

What is the "area of interest" on a weld radiograph?

Options:

A.

The entire radiograph minus 2 in. (50.8 mm) from the edges

B.

Only the area of contrasting density

C.

The specific portion of a radiograph that needs to be evaluated

D.

The portion that is less than 3t from the center of the radiograph, where t is the thickness of the weld

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Questions 15

Mechanical tests are required to qualify a welding procedure to document that the properties of the weldment meet which of the following?

Options:

A.

The expected load for which the weld will be subject.

B.

The minimum established acceptance criteria.

C.

The requirements as established in ASME Section XI.

D.

The same criteria required for welder qualification.

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Questions 16

Hardenability of a steel can be an indirect indicator of:

Options:

A.

Weldability

B.

Toughness

C.

Strength

D.

Cooling rate

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Questions 17

A welding engineer or inspector should be notified when a weld has failed a weld quality test more than how many times in order to help determine the cause of the test failure?

Options:

A.

ONCE

B.

TWICE

C.

THREE TIMES

D.

FOUR TIMES

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Questions 18

What is the major cause of lack of fusion in all welding processes involving carbon steel?

Options:

A.

Inadequate preheat

B.

Improper welding speed

C.

Improper heat input and improper welding technique

D.

Not using a low hydrogen electrode or improper shielding

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Questions 19

What is the most capable NDE method for finding a discontinuity such as incomplete fusion in a joint?

Options:

A.

MT

B.

UT

C.

ET

D.

RT

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Questions 20

Which of the following determines the necessity for preheat and postweld heat treatment?

Options:

A.

The percentage of carbon that will be in the completed weld

B.

The as-rolled hardness of the welding components

C.

The carbon equivalent of the steel

D.

The rate of cooling after the welding is completed

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Questions 21

For what maximum outside diameter may a radiographic technique be used in which the radiation passes through two walls and the weld in both walls is viewed for acceptance?

Options:

A.

1.5 in. (38.0 mm)

B.

2.5 in. (63.5 mm)

C.

3 in.(76.2 mm)

D.

3.5 in. (90.0 mm)

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Questions 22

The size and width of the weld HAZ is dependent upon:

Options:

A.

The properties of the base metal.

B.

The thickness of the metal.

C.

The residual hardness of the weld joint.

D.

The heat input during welding.

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Questions 23

Which welding process has been associated most with lack of fusion with shop-fabricated piping?

Options:

A.

GMAW-S

B.

GMAW-SF

C.

FCAW

D.

FCAW-SW

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Questions 24

The deflection of an arc from its normal path that is a result of magnetic forces is referred to as:

Options:

A.

Arc drift.

B.

Arc strike.

C.

Arc blow.

D.

Arc deflection.

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Questions 25

Which of the following is a commonly accepted advantage of flux core arc welding (FCAW)?

Options:

A.

Equipment is simple, inexpensive, and portable.

B.

The slag supports and shapes the weld bead.

C.

There is a reduced requirement for ventilation.

D.

There is minimal postweld cleanup.

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Questions 26

Crater cracks typically occur:

Options:

A.

In weld metal at the point where the arc terminates.

B.

In the HAZ at the point where the arc initiates.

C.

In weld metal at the point where the arc initiates.

D.

In the HAZ at the point where the arc terminates.

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Questions 27

A crack with its major axis oriented approximately perpendicular to the weld axis is called a:

Options:

A.

Lamellar crack.

B.

Non-directional crack.

C.

Transverse crack.

D.

Perpendicular crack.

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Questions 28

The WPS gives the welder specific guidelines to:

Options:

A.

Set the machine amperage, voltage, and travel speed.

B.

Confirm the project heat input is followed during welding.

C.

Successfully complete production welds.

D.

Make imperfection/defect-free welds.

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Questions 29

What increases when a welder increases the amperage?

Options:

A.

Voltage

B.

Arc length

C.

Heat

D.

Travel speed

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Questions 30

When welding using the shielded metal arc welding (SMAW) process, which of the following best describes the appearance of excessive penetration on a radiograph?

Options:

A.

A lighter density in the center of the width of the weld image, either extended along the weld or in isolated circular drops.

B.

An irregular darker density near the center of the width of the weld image along the edge of the root pass image.

C.

An abrupt density change across the width of the weld image with a straight longitudinal darker density line at the center of the width of the weld image along the edge of the density change.

D.

A localized darker density with fuzzy edges in the center of the width of the weld image.

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Questions 31

When performing a carbon steel to carbon steel hot tap where the CE of one of the metals is greater than 0.42%, which of the following electrodes should be used?

Options:

A.

E7048-H4

B.

E7048

C.

E7018-A1

D.

E7018

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Questions 32

To reduce exposure to moisture of low-hydrogen electrodes after they have been removed from the manufacturer’s packaging, they should be stored:

Options:

A.

Under low humidity conditions.

B.

In warm holding ovens.

C.

In sealed plastic containers.

D.

In tightly sealed ovens.

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Questions 33

A four-digit designation for a SMAW electrode under AWS classification uses the third digit to define the:

Options:

A.

Coating characteristics.

B.

Chemical composition.

C.

Strength of the filler metal.

D.

Welding position.

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Exam Code: API-577
Exam Name: Welding Inspection and Metallurgy Exam
Last Update: Dec 27, 2024
Questions: 110
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