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Inspeksi Pengelasan

Muhammad Naufal Kusumaputra · 03051182429022 · Kelas B, Indralaya

 

Nama : Muhammad Naufal Kusumaputra 

Nim : (03051182429022)

Kelas B Indralaya 

Question 1

Gas metal arc welding using short-circuiting transfer produces:

A. Excellent fusion
B. Deep penetration
C. Greater melt off rate
D. (A) and (B) above
E. None of the above

Answer: E. None of the above

Question 2

What Welding symbol above represents the following Weld joint?

A. 1
B. 2
C. 3
D. 4
E. 5

Answer: E. 5 

Question 3

The most extensively used weld inspection method is:

A. UT
B. RT
C. MT
D. VT
E. PT

Answer: D. VT

Question 4

What Shade filter plate (or eye protection) is needed when observing submerged arc welding at 1,000 Amps?

A. No. 14 Filter
B. No. 12 Filter
C. No. 10 Filter
D. No. 4 Filter
E. Clear safety goggles or safety glasses

Answer: D. No. 4 Filter

Question 5

Which of the following process can be used to join quenched and tempered steels?

A. SMAW
B. SAW
C. GMAW
D. All of the above
E. B and C above

Answer: D. All of the above

Question 6

The figure above illustrates:

A. Bend specimen
B. Tensile specimen
C. Impact specimen
D. Macro specimen
E. Drop weight specimen

Answer: A. Bend specimen

Question 7

The sketch above shows:

A. Shielded metal arc welding (SMAW)
B. Flux core arc welding (FCAW)
C. Electro slag welding (ESW)
D. Gas tungsten arc welding (GTAW)
E. Stud arc welding (SAW)

Answer: C. Electro slag welding (ESW) 

Question 8

A specification uses the term "Caulk weld"; according to A3.0, Standard Welding Terms and Definitions, it is a non-standard term that is referring to a:

A. Putty weld
B. Seal weld
C. Slugged weld
D. A weld covered with caulking putty
E. (A) and/or (D)

Answer: E. (A) and/or (D)

Question 9

For heat treatable low alloy steels, the minimum preheat and interpass temperature required cracking depends on:

A. Available hydrogen during welding
B. Condition of heat treatment
C. Its carbon and alloy content
D. All of the above
E. Letters (B) and (C) above

Answer: D. All of the above

Question 10

Which welding symbol below represents the weld joint?

A. 1
B. 2
C. 3
D. 4
E. 5

Answer: A. 1

Question 11

The symbol given below indicates:

A. Double-flare-V-groove weld, ultrasonic test either side in field
B. Double-flare-bevel-groove weld, ultrasonic test both sides in field
C. Double-bevel-groove weld, ultrasonic test either side in field
D. Double-V-groove weld, ultrasonic test either side in field
E. None of the above

Answer: D. Double-V-groove weld, ultrasonic test either side in field 

Question 12

For the fillet weld in picture: Dimension #1 designates the:

A. Theoretical throat
B. Effective throat
C. Actual throat
D. Convexity
E. Size of weld

Answer: B. Effective throat

Question 13

Dimension #2 designates the:

A. Convexity
B. Size of weld
C. Theoretical throat
D. Actual throat
E. Effective throat

Answer: C. Theoretical throat

Question 25

In E6018 electrode classification according to SFA 5.1, digit 60 means:

A. 60 MPa minimum electrode tensile strength
B. 60 ksi minimum electrode tensile strength
C. 60,000 psi minimum electrode tensile strength
D. Both B & C
E. None of the above

Answer: D. Both B & C

Question 26

Stick welding process is called known as?

A. GMAW
B. SMAW
C. GTAW
D. SAW
E. PAW

Answer: B. SMAW

Question 27

The welding inspector must often communicate with:

A. Welders
B. Supervisors
C. Welding engineers
D. Members of management
E. All of the above

Answer: E. All of the above

Question 28

If the prods shown in method #2 are placed on the face (axis) of a groove weld, which of the flaws would cause the clearest indication?

A. Transverse surface crack
B. Lack of fusion on the root
C. A plate lamination
D. A longitudinal surface crack
E. Tungsten inclusion

Answer: D. A longitudinal surface crack

Question 29

Which of the above symbols as listed in the current A2.4, Standard Symbols for Welding and Brazing, and Nondestructive Examination, is used to indicate field weld?

A. 1
B. 2
C. 3
D. 4
E. Field welds are not shown on the drawings.

Answer: C. 3

Question 30

Sensitization of stainless steel primarily refers to its loss of:

A. Strength
B. Toughness
C. Ductility
D. Corrosion resistance
E. Impact resistance

Answer: D. Corrosion resistance

Question 31

The base metal next to the weld that has been heated to a sufficiently high temperature to cause a change in microstructure is the:

A. Tempered Zone
B. Heat-affected zone
C. Untempered zone
D. Pearlite area
E. Base plate

Answer: B. Heat-affected zone

Question 32

Electrical hazards are:

A. Present in electric arc welders
B. Present in secondary leads
C. Minimized by proper equipment installation
D. More severe in the presence of water or moisture
E. All of the above

Answer: E. All of the above

Question 33

Inspection records should:

A. Be in as much as detail as necessary
B. Include explanation of repairs
C. State how the work stayed within prescribed tolerances
D. All of the above
E. B and C above

Answer: D. All of the above

Question 34

Incomplete fusion can be caused by:

A. Molten metal flooding ahead of the arc
B. Insufficient heat input
C. Proper joint design
D. Any of the above
E. A and B above

Answer: E. A and B above

Question 35

What welding symbol below represents the following weld joint?

A. 1
B. 2
C. 3
D. 4
E. 5

Answer: E. 5

Question 36

Brazed joints can be destructively tested by which of the following testing methods?

A. Metallographic
B. Peel
C. Tension
D. All of the above
E. None of the above

Answer: D. All of the above

Question 37

A CWI shall have the responsibility of verifying documentation of the following:

A. records of welder qualifications
B. records of tacker qualifications
C. records of Welding operator qualifications
D. records of Welding Procedure qualifications
E. all of the above

Answer: E. all of the above

Question 38

An ultrasonic test of a plate shows a trace on the CRT with peaks as shown below. If the sweep is from left to right, the peak at (2) may indicate:

A. A flaw at the surface
B. A flaw near the center
C. A reflection from the back
D. A flaw at the back
E. There is no flaw indicated on the trace

Answer: B. A flaw near the center

Question 39

Which of the following is sometimes used to control distortion in a weldment?

A. Peening
B. Preheating
C. Fixtures and stress relief
D. Backstep welding
E. All of the above

Answer: E. All of the above

Question 40

An unbroken tensile specimen has a thickness of .59 inch and a width of .73 inch. What is the cross-sectional area in square inches?

A. .39
B. .40
C. .41
D. .43
E. .44

Answer: D. .43

Question 41

Overexposure to X-rays or gamma rays may cause damage to human:

A. sexual organs
B. blood tissue
C. skin
D. internal organs
E. all of the above

Answer: E. all of the above

Question 42

No. 1 indicates the:

A. Beads
B. weld root
C. weld toe
D. face reinforcement
E. weld face

Answer: D. face reinforcement

Question 43

No. 2 indicates the:

A. Beads
B. weld root
C. weld toe
D. face reinforcement
E. weld face

Answer: E. weld face

Question 44

No. 3 indicates the:

A. Beads
B. weld root
C. weld toe
D. face reinforcement
E. weld face

Answer: C. weld toe

Question 45

No. 4 indicates the:

A. Beads
B. weld root
C. weld toe
D. face reinforcement
E. weld face

Answer: A. Beads

Question 46

No. 5 indicates the:

A. Beads
B. weld root
C. weld toe
D. face reinforcement
E. weld face

Answer: B. weld root

Question 47

The sketch below shows a test procedure for:

A. shielded metal arc welding (SMAW)
B. Gas metal arc welding (GMAW)
C. Electro slag welding (ESW)
D. Gas tungsten arc welding (GTAW)
E. Stud welding (SW)

Answer: E. Stud welding (SW)

Question 48

A triangular-shaped weld symbol represents what type of weld?

A. Bevel groove
B. Flare groove
C. Flange groove
D. V-groove
E. Fillet weld

Answer: E. Fillet weld

Question 49

When welds are going to be hidden or inaccessible for inspection in a finished weldment or structure, they should be inspected:

A. by methods to provide access to the hidden welds
B. after postweld treatment of the completed weldment of structure
C. before start of the welding
D. during the progress of assembly as welds are completed
E. after completion of the work borescope

Answer: D. during the progress of assembly as welds are completed

Question 50

The symbol below shows the configuration of:

A. U-groove weld
B. bevel-groove weld
C. J-Groove weld
D. fillet weld
E. flare-V-Groove weld

Answer: C. J-Groove weld

Question 51

Hardness of the base metals can be affected by which of the following conditions?

A. Heat treatment
B. Cold working of the metal
C. Composition of the base and weld metal
D. Metallurgical effects of welding process
E. All of the above

Answer: E. All of the above

Question 52

In braze welding, flux may be applied by which of the following methods?

A. using filler rod pre-coated with flux
B. introducing flux through oxy fuel gas flame
C. brushing the flux on the joint prior to brazing
D. all of the above
E. A or C above

Answer: D. all of the above

Question 53

Pick the welding process best illustrated by the sketch below:

A. shielded metal arc welding (SMAW)
B. Gas metal arc welding (GMAW)
C. Gas tungsten arc welding (GTAW)
D. Submerged arc welding (SAW)
E. Plasma arc cutting (PAW)

Answer: E. Plasma arc cutting (PAW)

Question 54

Which of the following may an inspector use to perform visual inspection?

A. magnifier
B. micrometer
C. fillet weld gauge
D. all of the above
E. B and C above

Answer: D. all of the above

Question 55

The welding inspector must verify that:

A. all records are completed by the time hardware is shipped even though they may not have been completed at the end of operations
B. records of qualifications, certification, fabrication and testing are completed and that they meet appropriate code and/or specification requirements specified for the job
C. all the general points are covered in inspection records, since detail is never allowed in such reports
D. the hardware was completed and that the shop promises to complete the records before shipment.
E. that the quality manual meets the appropriate quality system national or international standard for welding such as ISO 9000 or GS 9000

Answer: B. records of qualifications, certification, fabrication and testing are completed and that they meet appropriate code and/or specification requirements specified for the job

Question 56

A weld which extends all around the joint is shown at number:

A. 9
B. 4
C. 7
D. 3
E. 8

Answer: B. 4

Question 57

An intermittent fillet is shown as number:

A. 1
B. 9
C. 4
D. 7
E. 6

Answer: A. 1

Question 58

A plug weld indicating depth of fill is shown as number:

A. 6
B. 3
C. 7
D. 5
E. 8

Answer: D. 5

Question 59

A groove weld with melt-through is shown at number:

A. 2
B. 7
C. 6
D. 3
E. 10

Answer: E. 10

Question 60

The profile of the fillet weld below shows a flaw at no. 1 is known as:

A. a wagon track
B. a toe crack
C. underlap
D. undercut
E. underbead cracking

Answer: D. undercut

Question 61

The fillet weld below shows a flaw at No. 2 is known as:

A. overlap
B. a toe crack
C. overfill
D. undercut
E. toe lamination

Answer: A. overlap

Question 62

The fillet weld below shows a defect at No. 3 is known as:

A. macro fissure
B. incomplete fusion
C. piping porosity
D. undercut
E. an underbead crack

Answer: B. incomplete fusion

Question 63

A CWI shall be familiar with and understand the fundamentals of:

A. SMAW
B. FCAW
C. GMAW
D. GTAW
E. all of the above

Answer: E. all of the above

Question 64

Types of destructive test are?

A. Tensile test
B. Ultrasonic test
C. Charpy impact test
D. a & c above
E. None of the above

Answer: D. a & c above

Question 65

The rate of cooling in a weld bead is slowed by…

A. Decreasing the heat input per inch of weld
B. Preheating the weldment
C. Reducing the electrode size
D. Increasing the travel speed
E. Increasing the amperage and travel speed proportionally

Answer: B. Preheating the weldment

Question 66

The fillet weld break test is used to evaluate the:

A. Quality of the fractured weld metal
B. Compressing strength of the weld joint
C. Ductility of weld metal
D. Weld’s resistance to lamellar tearing
E. Impact strength of the weld joint

Answer: A. Quality of the fractured weld metal

Question 67

Depending on the cause, slag entrapment may be corrected by…

A. Changing the electrode or flux
B. Through slag removal between the passes
C. Proper positioning of the joint
D. All of the above
E. B and C of above

Answer: D. All of the above

Question 68

Inspection report should be…

A. Clearly written
B. Contain all required information
C. Readily accessible
D. All of the above
E. A and B of above

Answer: D. All of the above

Question 69

The weld in the figure No. 1 below is said to be welded in the:

A. Flat position
B. Horizontal position
C. Vertical position
D. Overhead position
E. None of the above

Answer: A. Flat position

Question 70

The weld in the figure No. 2 below is said to be welded in the:

A. Flat position
B. Horizontal position
C. Vertical position
D. Overhead position
E. None of the above

Answer: C. Vertical position

Question 71

The weld in the figure No. 3 below is said to be welded in the:

A. Flat position
B. Horizontal position
C. Vertical position
D. Overhead position
E. None of the above

Answer: A. Flat position

Question 72

Incomplete joint penetration can be caused by:

A. Insufficient root opening
B. Excessive travel speed
C. Excessive electrode diameter
D. All of the above
E. A and C above

Answer: D. All of the above

Question 73

Macro examination will reveal the microstructure of the…

A. Base metal
B. Heat-affected zone
C. Fusion zone
D. All of the above
E. B and C above

Answer: D. All of the above

Question 74

The upper limits of preheat and interpass temperatures for quenched and tempered steel are specified for what reason(s):

A. Keep deposit rate to a minimum
B. Maintain the strength in the base metal heat-affected zone
C. Keep the weld metal from becoming too strong
D. Avoid cracking in the weldment
E. Letters B and D above

Answer: E. Letters B and D above

Question 75

Which of the following is NOT important or essential to good record keeping?

A. Clearly and concisely stated facts
B. A good company policy manual
C. Well organized reports presenting a total picture
D. Logical sequence to reporting
E. All supporting forms, reports and data included or referenced

Answer: B. A good company policy manual

Question 76

The code that covers the welding of steel structures is:

A. ASME Section IX
B. ASME B31.1
C. API 1104
D. AWS D1.1
E. ASME B31.3

Answer: D. AWS D1.1

Question 77

Oxyacetylene welding of 16-gauge steel requires absorptive eye protection of a…

A. Shade #4 or 5
B. The same absorptive lens as required for submerged arc welding
C. Shade #6 or 8
D. Shade #10 or 12
E. Just safety glasses

Answer: C. Shade #6 or 8

Question 78

Liquid penetrant inspection is used for detecting…

A. Weld undercut
B. Excessive weld reinforcement
C. Weld discontinuities open to the surface
D. Short fillet weld leg size
E. Depth of weld penetration

Answer: C. Weld discontinuities open to the surface

Question 79

The SMAW power supply can be:

A. DCEN
B. AC
C. DCEP
D. All of the above
E. A and C above

Answer: D. All of the above

Question 80

A stress relief heat treatment (approximately 1150°F on carbon steel) is intended to…

A. Change the microstructure of the weld
B. Increase the tensile strength of the weld
C. Reduce the residual weld stresses across the weld.
D. Increase the impact strength of the weld.
E. Provide a method of oven heating for the removal of gas pockets trapped in the weld.

Answer: C. Reduce the residual weld stresses across the weld.

Question 81

The liquid penetrant applied to the surface of a test specimen…

A. flows into discontinuities upon application of developer.
B. is adsorbed by discontinuities
C. is drawn into a discontinuity by capillary action
D. runs into discontinuities by gravity.
E. penetrates the surface by chemical action.

Answer: C. is drawn into a discontinuity by capillary action

Question 82

E-7018 electrode has a tensile strength of:

A. 70000 psi
B. 70000 MPa
C. 70 ksi
D. None of the above
E. A & C above

Answer: E. A & C above

Question 83

Mild steel (A36) is more weldable than…

A. Low carbon steel (A53)
B. Medium carbon steel (SAE 1040)
C. High carbon steel (SAE 1095)
D. All of the above
E. B and C

Answer: E. B and C

Question 84

Air carbon arc cutting:

A. Requires an air supply
B. May be done manually or mechanically
C. All of the above
D. A and B above

Answer: D. A and B above

Question 85

Prior to welding, a CWI should check…

A. If the welding procedure is qualified in accordance with the contract specification.
B. If the welder is qualified for the process and position
C. If the joint designs and joint preparations meet the requirements of the welding procedure
D. The inspection requirements called out by the contract specs
E. All of the above

Answer: E. All of the above

Question 86

A welder may be required to retest because…

A. He or she fails their initial welding test
B. In case there is a change in an essential variable
C. His or her ability to deposit sound weld metal is questioned
D. All of the above
E. B and C above

Answer: D. All of the above

Question 87

A CWI’s records may be used…

A. to help recall and verify past decisions
B. to verify the payment of work invoices
C. to verify man-hour records for the shop
D. for packing slips for shipping
E. all of the above

Answer: A. to help recall and verify past decisions

Question 88

The factor which is most important to the reliability of a test is…

A. Ease of conducting test
B. Cost of required equipment
C. Reproducibility of test conditions
D. Speed of testing
E. Portability of equipment

Answer: C. Reproducibility of test conditions

Question 89

During electroslag welding, cracks may be avoided by maintaining…

A. Proper electrode feed rate
B. Proper current
C. Proper spacing between electrodes or guide tubes
D. All of the above
E. A and C above

Answer: E. A and C above

Question 90

Magnetic particle inspection is most suitable for the detection of…

A. Surface cracks perpendicular to the magnetic lines of force
B. Short fillet throat dimensions of fillet welds
C. Lamination in plate that are less than ¼ inch below the surface
D. Excessive weld reinforcement in butt joints done with SMAW
E. The residual magnetism of a weldment

Answer: A. Surface cracks perpendicular to the magnetic lines of force

Question 91

Hardness test method(s) for metals include(s)…

A. Rockwell
B. Knoop
C. Vickers
D. Brinell
E. All of the above

Answer: E. All of the above

Question 92

The weld face refers to the…

A. Surface of a cross section of the weld
B. Appearance of the heat-affected zone
C. Original groove face
D. Exposed surface of the weld on the side from which welding was done
E. Exposed surface of the weld on the side opposite from which welding was done

Answer: D. Exposed surface of the weld on the side from which welding was done

Question 93

A welding inspector must be ethical primarily in order to…

A. Ensure that the employer receives fair value for inspection fees
B. Render impartial decisions
C. Reject every weld the first time of inspection
D. Safeguard the public’s health and well-being
E. B and D above

Answer: B. Render impartial decisions

Question 94

A welder performing SMAW with too high travel speed can…

A. Decrease penetration
B. Cause undercutting at the edges of the weld
C. Cause difficulty in slag removal
D. All of the above
E. A and B above

Answer: D. All of the above

Question 95

The only forms that may be used for welding qualification records are shown in the AWS and ASME code books. The above statement is…

A. True
B. False
C. True only for city government owned weldments
D. Not to be verified by a CWI
E. True, except for approved computer-generated records keeping systems

Answer: B. False

Question 96

What should be known for proper interpretation of liquid penetrant indications?

A. Previous manufacturing processes performed on the part
B. Technique used in applying and removing the penetrant
C. Method used to clean part prior to inspections
D. All of the above
E. None of the above

Answer: D. All of the above

Question 97

Which of the following is an advantage of fluorescent penetrants over visible dye penetrants?

A. The inspection can be carried out in a well-lighted area
B. Small indications are more easily seen
C. It can be used where contact with water is objectionable
D. It is less sensitive to contamination of discontinuities
E. The dye requires no vehicle or solvent

Answer: B. Small indications are more easily seen

Question 98

Shielding gases used for GMAW include…

A. Helium
B. Argon
C. CO2
D. All of the above
E. Letters A and B above

Answer: D. All of the above

Question 99

Reverse polarity is a nonstandard term for…

A. Direct current electrode positive
B. Direct current electrode negative
C. Direct current straight polarity
D. Direct current reverse polarity
E. None of the above

Answer: A. Direct current electrode positive

Question 100

Under most code rules, welders may be qualified by their employers providing they have…

A. Been employed for a minimum of six months
B. Qualified by at least one previous employer
C. Passed a prescribed set of tests
D. A and B above
E. A and B above

Answer: C. Passed a prescribed set of tests

Question 101

Destructive tests of welds are designed to…

A. Determine the mechanical properties (i.e. tensile strength, ductility, toughness)
B. Determine the Modulus of Elasticity of a weld metal
C. Calculate the percent of reduction in area for an all-weld-metal specimen
D. Determine the soundness of weld metal
E. All of the above

Answer: E. All of the above

Question 102

In comparison to surface cracks, the sensitivity of magnetic particle inspection to flaws ¼-inch or more below the surface of a thick weld is:

A. generally, much less
B. approximately equal
C. nearly equal if the flaws are fine non-metallic strings
D. nearly equal if the internal and external flaws have equal widths
E. greater if the flaws are located near the weld’s axis and AC current is used

Answer: A. generally, much less

Question 103

The welding inspector should evaluate critical joint fit-ups before welding begins. Which of the following is NOT an essential part of the evaluation?

A. Tack welds
B. Root opening
C. Post heat temperature
D. Edge preparation
E. Dimensions and alignment

Answer: C. Post heat temperature

Question 104

Torch brazing is accomplished by the use of:

A. a neutral oxyfuel gas flame
B. a slightly reducing oxyfuel gas flame
C. an air-fuel gas flame
D. all of the above
E. A and C above

Answer: A. a neutral oxyfuel gas flame

Question 105

Which of the following defects does NOT occur when a weld is made by the GTAW process?

A. Porosity
B. Slag inclusions
C. Cracks
D. Incomplete fusion
E. Overlap

Answer: B. Slag inclusions

Question 106

Capillary action plays a role in which NDT method?

A. ET
B. UT
C. RT
D. PT
E. MT

Answer: D. PT

Question 107

The qualification of a CWI covers the responsibility to…

A. specify welding procedures
B. compute allowable stresses
C. perform radiographic examinations
D. conduct test for analysis of base material composition
E. none of the above

Answer: E. none of the above

Question 108

When other welding variables are held constant, increasing the welding current during

A. FCAW will
B. Increase electrode deposition rate
C. Increase penetration
D. Produce concave weld beads with poor appearance
E. All of the above

Answer: D. Produce concave weld beads with poor appearance

Question 109

Yield strength may be determined by:

A. tension tests
B. charpy tests
C. hardness tests
D. none of the above
E. A or C above

Answer: A. tension tests

Question 110

Which of the following is/are used to perform MT?

A. coloured ferro-magnetic oxide powders
B. AC and DC articulated leg yokes
C. DC coils
D. all of the above
E. only A and C above

Answer: D. all of the above

Question 111

Which test is not considered a ‘soundness test’?

A. Hardness
B. Face bend
C. Fillet break
D. Root bend
E. Nick break

Answer: A. Hardness

Question 112

Any records that require the fabricator’s signature should be prepared by:

A. the inspector
B. the fabricator
C. both the shop foreman and the inspector
D. the QA Manager
E. an engine

Answer: B. the fabricator

Question 113

Preheat is sometimes used for shielded metal arc welding of materials which have very high thermal conductivity. Preheat, in this case:

A. Reduces the amperage required for welding
B. Improves penetration
C. Aids fusion
D. All of the above
E. A and B above

Answer: D. All of the above

Question 114

Direct current electrode positive means the work piece is connected to…
A. “reversible” (alternating) current
B. the positive terminal
C. the negative terminal
D. all of the above
E. none of the above

Answer: C. the negative terminal

Question 115

A traveller, or production plan, requires UT examination of the faying surface of a weld joint. The faying surface is described as…

A. The surface of the joint which will be ground upon completion of welding
B. The face-side of a weldment
C. The surface of a weldment which will come in contact with any other surface
D. B or C above
E. The mating surface of a member that is in contact with or in close proximity to another member to which it is to be joined

Answer: E. The mating surface of a member that is in contact with or in close proximity to another member to which it is to be joined

Question 116

To maintain weld quality during Arc Stud Welding it is necessary to:

A. have sufficient welding power
B. use DC Electrode Negative (straight polarity) for aluminium
C. make test welds before starting
D. A and B above
E. A and C

Answer: E. A and C

Question 117

The Charpy V-Notch impact test is…

A. the most common fracture toughness test
B. often used in specifying minimum acceptance criteria for base metal
C. often used for welding procedure qualification
D. all of the above
E. A and C above

Answer: D. all of the above

Question 118

What aspects of fabrication can be checked through visual inspection during welding?

A. Sequence of weld passes
B. Inter pass cleaning
C. Proper preheat
D. All of the above
E. A and B above

Answer: D. All of the above

Question 119

Which of the following could interfere with liquid penetrant testing?

A. an oily surface
B. a wet surface
C. a rough weld
D. all of the above
E. only A and B above

Answer: D. all of the above

Question 120

The distance between the tip of the welding electrode and the weld surface is called…
A. Arc force
B. Arc length
C. Arc blow
D. Arc strike
E. Arc chamber

Answer: B. Arc length

Question 121

The certified welding inspector may be required to verify the following records are maintained…
A. Welding procedure qualification
B. Control of welding materials
C. Welder qualification
D. All of the above
E. A and C above

Answer: D. All of the above

Question 122

Optimum results are more likely when EXX16 and EXX18 low-hydrogen electrodes:

A. used with a long arc on downhill welding and a short arc on uphill welding
B. stored in refrigerator when the container has been opened
C. stored in a holding oven at proper temperature
D. used with a “whipping” technique on light gage metal
E. replaced with EXX13 electrodes on vertical work

Answer: C. stored in a holding oven at proper temperature

Question 123

Guided bend specimens may be:

A. longitudinal or transverse to the weld axis
B. bend in tensile test machines
C. bend in wrap-around bend test jigs
D. all of the above
E. A and C above

Answer: D. all of the above

Question 124

Brazed joints can be inspected by which of the following testing methods:

A. ultrasonic
B. leak
C. torsion
D. any of the above
E. A and B above

Answer: D. any of the above

Question 125

Manufacturers recommend that E7018 electrodes be used with a “short arc” welding technique. This helps…

A. Speed the metal transfer across the arc
B. Maintain good shielding of the molten weld pool
C. In welding thin sheet metal
D. Root pass “whipping” burn through
E. The GMAW process weld as sheet metal

Answer: B. Maintain good shielding of the molten weld pool

Question 126

Why should the CWI keep accurate and up-to-date records and reports?

A. to keep the superintendent informed
B. to impress the chief inspector
C. so that he can write better procedures
D. to satisfy government agencies
E. to assure compliance with standards and specifications

Answer: E. to assure compliance with standards and specifications

Question 127

If a welding inspector feels he or she is not qualified to make judgment as to the acceptability of a weldment, he or she should:

A. Do the best he or she can and report accordingly
B. Call for assistance from someone who is qualified
C. Wait to make judgment until he or she has had time to get additional training
D. Stop all work until procedures are developed within the inspector’s qualification
E. Allow work to continue because further welder experience will improve

Answer: B. Call for assistance from someone who is qualified

Question 128

Ultrasonic waves can be coupled to the test object effectively…

A. through a film of oil
B. through a film of air
C. through a layer of water
D. through a layer of grease
E. A, C and D above

Answer: E. A, C and D above

Question 129

When the weld structure is to be examined at magnifications over 10x, ______ are used.

A. Macro-specimens
B. Micro-specimens
C. Tensile specimens
D. Charpy specimens
E. Chemical tests

Answer: B. Micro-specimens

Question 130

Plasma Arc Cutting (PAC) is better suited than Oxyfuel Gas Cutting (OFC) for cutting…

A. Ferrous sheet metal
B. Nonferrous metals (i.e. aluminium, copper, brass, etc.)
C. Any metals with a thickness over ½-inch
D. Stainless steel sheet and plate
E. A, B and D above

Answer: E. A, B and D above