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CWB1 > Visual Inspection Concepts and Techniques > Flashcards

Visual Inspection Concepts and Techniques Flashcards

1
Q

Calibration and verification can be considered as achieving the same results. (True/False)
Question 1 options:
True
False

A

False

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2
Q

How is the accuracy of a measurement defined? (Multiple choice)
Question 2 options:

A) How close repeated values are to each other.

B) The verification of the equipment type being used.

C) Correct substantiated readings taken at each measurement point.

D) How close repeated measurements are to the true value.

A

D) How close repeated measurements are to the true value.

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3
Q

How should dimensions be measured to avoid cumulative errors? (Multiple choice)
Question 3 options:

A) From a common datum.

B) From the center of the drawing.

C) By determining the center of two points that are farthest from each other.

D) By using datums for each measurment.

A

A) From a common datum.

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4
Q

Which instrument is used to check vertical dimensions and transfer points? (Multiple choice)
Question 4 options:

A) A framing square.

B) A combination square.

C) A plumb bob.

D) A protractor.

A

C) A plumb bob.

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5
Q

When completing the verification of a precision instrument, the equipment’s ambient temperature should be: (Multiple choice)
Question 5 options:

A) 16 °C during verification.

B) 18 °C during verification.

C) 20 °C during verification.

D) 22 °C during verification.

A

C) 20 °C during verification.

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6
Q

In achieving accurate measurements with a long steel tape, it is important that the tape be: (Multiple choice)
Question 6 options:

A) held reasonably loose so it does not stretch.

B) held as tight as possible so there is no slack.

C) held under the correct tension.

D) kept at room temperature to limit thermal expansion.

A

C) held under the correct tension.

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7
Q

What is the minimum distance of preheat stated by CSA W59? (Multiple choice)
Question 7 options:

A) 25 mm

B) 50 mm

C) 75 mm

D) 100 mm

A

C) 75 mm

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8
Q

Which gauge has a scale for measuring a butt weld reinforcement and a fillet weld leg length? (Multiple choice)
Question 8 options:

A) A fillet weld gauge.

B) A palmgren gauge.

C) A Hi-Lo gauge.

D) All of the above.

A

B) A palmgren gauge.

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9
Q

A root opening gauge is used to measure misalignment of a root opening after it has been welded. (True/False)
Question 9 options:
True
False

A

False

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10
Q

Which orientation is used when using a string as a reference line to measure distortion in a plate? (Multiple choice)
Question 10 options:

A) Vertically up from the string to the plate.

B) Parallel with the string to the plate.

C) Vertically down from the string to the plate.

D) Horizontally from the string to the plate.

A

D) Horizontally from the string to the plate.

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11
Q

Ambient temperature can play a part in checking the accuracy of a measurement. (True/False)
Question 11 options:
True
False

A

True

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12
Q

What is used to determine the range of accuracy of a micrometre? (Multiple choice)
Question 12 options:

A) Wedge blocks.

B) Gauge blocks.

C) An IIW block.

D) An external caliper.

A

B) Gauge blocks.

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13
Q

It is recommended that a tape measure should be calibrated for adjustment at twelve month intervals for accuracy. (True/False)
Question 13 options:
True
False

A

False

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14
Q

What issue can be confirmed by a V-WAC gauge? (Multiple choice)
Question 14 options:

A) Lack of fusion.

B) Depth of undercut.

C) Fillet weld concavity.

D) Convexity of a fillet weld.

A

B) Depth of undercut.

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15
Q

What tool can be used for measuring a small gap between two plates of a T-joint in a fillet welded material? (Multiple choice)
Question 15 options:

A) A tape measure.

B) A feeler gauge.

C) An inside caliper.

D) A vernier caliper.

A

B) A feeler gauge.

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16
Q

A micrometer requires the part being measured to be squeezed as tightly as possible to ensure an accurate reading. (True/False)
Question 16 options:
True
False

A

False

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17
Q

What discontinuity may open up when the surface of the plate is heated or when the plate is cut or welded? (Multiple choice)
Question 17 options:

A) A scab.

B) Laminations.

C) Mechanical slivers.

D) Craters.

A

B) Laminations.

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18
Q

What document(s) is(are) used to check on a base material’s conformation to type and grade? (Multiple choice)
Question 18 options:

A) Fabrication drawings.

B) Mill test certificates.

C) ITP.

D) Inspection travel sheet.

A

B) Mill test certificates.

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19
Q

AWS D1.6 specifies that all beam copes and weld access holes be free from notches or sharp corners. (True/False)
Question 19 options:
True
False

A

True

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20
Q

According to CSA W59, what action should be taken on a 50 mm thick plate edge with a 6 mm notch, prior to welding? (Multiple choice)
Question 20 options:

A) The discontinuity can remain and no action is required.

B) The discontinuity has to be removed and rewelded.

C) The plate has to be machined.

D) The engineer’s approval must be obtained before any action can be taken.

A

D) The engineer’s approval must be obtained before any action can be taken.

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21
Q

For sectonal tickness of up to and including 1/4 in (24 mm), ASME Section VIII specifies a maximum allowable offset in a circumferential weld of: (Multiple choice)
Question 21 options:

A) t/5

B) t/4

C) 5 mm

D) No offset is permitted.

A

A) t/5

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22
Q

What is the term for a solidification cavity in steel appearing as a lamination in the middle of the end section of a rolled plate? (Multiple choice)
Question 22 options:

A) Scab.

B) Pipe.

C) Blister.

D) Seam.

A

B) Pipe.

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23
Q

According to CSA W59, the maximum permissible variation from web flatness is: (Multiple choice)
Question 23 options:

A) 1/50 x depth of the web.

B) 1/100 x depth of the web.

C) 1/150 x depth of the web.

D) 1/200 x depth of the web.

A

C) 1/150 x depth of the web.

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24
Q

According to CSA W59, what would be the maximum combined warpage and tilt of a flange allowed? (Multiple choice)
Question 24 options:

A) 1/10 x flange width, no maximum.

B) 6 mm.

C) 1/100 x flange width, 6 mm maximum.

D) 1/5 x flange width, no maximum.

A

C) 1/100 x flange width, 6 mm maximum.

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25
Q

Pockmarks are gas entrapments which are grounds for a weldment’s failure even if all other criteria are met. (True/False)
Question 25 options:
True
False

A

False

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26
Q

Which part of a fillet weld determines the weld’s strength? (Multiple choice)
Question 26 options:

A) The root of the weld.

B) The weld face.

C) The leg size.

D) The throat thickness.

A

D) The throat thickness.

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27
Q

A symmetrical camber is required to be measured at one point only. (True/False)
Question 27 options:
True
False

A

False

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28
Q

Which tool can measure undercut, weld reinforcement, weld throat, reduction in groove weld thickness, and misalignment? (Multiple choice)
Question 28 options:

A) A fillet weld gauge.

B) A bridge cam gauge.

C) A combination square.

D) A bevel gauge.

A

B) A bridge cam gauge.

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29
Q

What is the maximum transition ratio for inherent misalignment? (Multiple choice)
Question 29 options:

A) 2:1

B) 3:1

C) 4:1

D) 5:1

A

C) 4:1

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30
Q

How is porosity measured? (Multiple choice)
Question 30 options:

A) By the radius of each pore.

B) By its largest dimension.

C) By the diameter plus the estimated diameter of subsurface porosity.

D) By the diameter of each pore times 1.5 for subsurface porosity.

A

B) By its largest dimension.

31
Q

What is the minimum angle between the skewed joints for which a weld can be considered as a fillet weld? (Multiple choice)
Question 31 options:

A) 45°

B) 60°

C) 75°

D) 90°

A

B) 60°

32
Q

Which formula is used to calculate the face of a fillet weld? (Multiple choice)
Question 32 options:

A) Length x width x height

B) A² + B² = C²

C) Pi r²h

D) PiDH

A

B) A² + B² = C²

33
Q

For irregular beam shapes where the flange is not normal to the web, how can warpage be checked? (Multiple choice)
Question 33 options:

A) Irregular beam shapes cannot be checked.

B) A spirit level and a straight edge should be used.

C) A plumb-line and a square should be used.

D) A special template should be made.

A

Try C or D

34
Q

When a difference exists between two radii, it is important that the misalignment is: (Multiple choice)
Question 34 options:

A) averaged over the total circumference.

B) split into two very equal gaps.

C) tacked at the point of the smallest gap first.

D) tacked at the point of the widest gap first.

A

A) averaged over the total circumference.

35
Q

Which part of a fillet weld is calculated using the formula: 0.07 x fillet weld face + 1/16 inch? (Multiple choice)
Question 35 options:

A) The fillet weld leg lengths.

B) The maximum allowable convexity.

C) The effective throat thickness.

D) The maximum allowable throat.

A

B) The maximum allowable convexity.

36
Q

What are the limits when a bilateral tolerance of +5/-10 is indicated for a 500 mm long WF beam? (Multiple choice)
Question 1 options:

A) 495 mm and 510 mm

B) 500 mm and 510 mm

C) 490 mm and 505 mm

D) 490 mm and 510 mm

A

C) 490 mm and 505 mm

37
Q

What action is completed to ensure the caliper’s accuracy? (Multiple choice)
Question 2 options:

A) Yearly verification intervals.

B) Calibration to a national standard.

C) Taking a reading to three decimal places.

D) Multiple readings at one location.

A

B) Calibration to a national standard.

38
Q

What is a cause of a serious systematic measurement error? (Multiple choice)
Question 3 options:

A) Distortion in the material.

B) A faulty layout template.

C) Not having a direct line of sight.

D) Measurements of scattered readings.

A

B) A faulty layout template.

39
Q

Which tool is suited for checking a bevel angle? (Multiple choice)
Question 4 options:

A) A combination square.

B) A palmgren gauge.

C) A protractor.

D) A V-wac gauge.

A

C) A protractor.

40
Q

Which instrument is used to measure in small increments with high precision? (Multiple choice)
Question 6 options:

A) A tape measure.

B) A micrometre.

C) A laser level.

D) A machinist square.

A

B) A micrometre.

41
Q

To measure porosity, which tool could you use? (Multiple choice)
Question 5 options:

A) A ruler.

B) A level.

C) A gauge block.

D) A straight edge.

A

A) A ruler.

42
Q

One method to check a steel square for straightness is to use the formula C² = B² + A². (True/False)
Question 8 options:
True
False

A

True

42
Q

When transferring a measurement from a set of inside calipers, a good practice would be to: (Multiple choice)
Question 7 options:

A) use a tape measure and magnet to secure datum.

B) use a block as a stop at the end of a ruler for a datum point.

C) check with a tape measure hooked on one end of the caliper.

D) chalk and transfer the measurement and remeasure with a tape measure.

A

B) use a block as a stop at the end of a ruler for a datum point.

43
Q

How many points of contact must be made with a fillet weld gauge when measuring throat thickness? (Multiple choice)
Question 11 options:

A) One point of contact.

B) Two points of contact.

C) Three points of contact.

D) Four points of contact.

A

C) Three points of contact.

44
Q

Which type of tool is made up of a blade and tongue? (Multiple choice)
Question 10 options:

A) A combination square.

B) A framing square.

C) A protractor.

D) A bevel gauge.

A

B) A framing square.

44
Q

What feature on some spirit levels allow for finding level on a part or component without holding the level against the part? (Multiple choice)
Question 9 options:

A) Reusable self-adhesive strips.

B) Magnet.

C) Clamp.

D) Positioning pins.

A

B) Magnet.

45
Q

What is the first step in the use of a vernier caliper prior to taking a measurement? (Multiple choice)
Question 12 options:

A) Verify the material’s required measurements.

B) Zero out the tool.

C) Take reading to as many decimal places as possible.

D) Check the tolerance allowances for the material.

A

B) Zero out the tool.

45
Q

When using a framing square to square a pipe flange, how may measurements are taken to confirm a right angle (90°)? (Multiple choice)
Question 15 options:

A) One measurement.

B) Two measurements.

C) Three measurements.

D) Four measurements.

A

B) Two measurements.

46
Q

What type of tool is useful for an acurate measurement of the inside diameter of a pipe six inches in? (Multiple choice)
Question 13 options:

A) A vernier caliper.

B) An outside caliper.

C) An inside caliper.

D) A micrometre.

A

C) An inside caliper.

47
Q

Which factors affect accuracy when using a steel tape for long measurements? (Multiple choice)
Question 14 options:

A) A tension bar

B) A tape clamp and a tension handle

C) A scissor clamp handle

D) A retractable compression handle

A

B) A tape clamp and a tension handle

48
Q

How can inward and outward variations of distortion be accuratly measured? (Multiple choice)
Question 16 options:

A) With a floating straight edge touching against the convex side of the distortion.

B) With blocks of equal height and a string that clears the high points in the distortion.

C) With a floating combination square touching the convex part of the distortion.

D) All of the above.

A

B) With blocks of equal height and a string that clears the high points in the distortion.

48
Q

What may be the cause of scaling rolled into a material’s surface? (Multiple choice)
Question 17 options:

A) A previous heating operation from the mill.

B) Oxidization from atmospheric exposure.

C) Excessive cold-rolling of a material at the mill.

D) Improper drawing pressure af a material at the mill.

A

A) A previous heating operation from the mill.

49
Q

At what distance does CSA W59 state that surfaces and edges to be welded must be free of slag, rust, paint, and so forth? (Multiple choice)
Question 20 options:

A) 25 mm

B) 50 mm

C) 2 x the material thickness

D) 4 x the material thickness

A

B) 50 mm

49
Q

What is the purpose of ensuring that a backing bar is continuously joined? (Multiple choice)
Question 18 options:

A) Avoid excess penetration.

B) Avoid slag inclusions.

C) Avoid lack of fusion.

D) Avoid cracking.

A

D) Avoid cracking.

50
Q

What is the term used when a raised portion on the surface of a material is caused by a gas bubble?
Multiple choice)
Question 19 options:

A) Pipe.

B) Scab.

C) Blister.

D) Seam.

A

C) Blister.

51
Q

When inspecting a flare groove weld, which part of the weld is measured when the throat is inaccessible? (Multiple choice)
Question 23 options:

A) The bevel angle.

B) The face width.

C) The length of the weld.

D) The estimated penetration.

A

B) The face width.

51
Q

What action must be taken when fillet welding a T-joint with a 3 mm gap? (Multiple choice)
Question 21 options:

A) The fillet weld size must be increased by 3 mm to compensate for the gap.

B) The gap must be filled before being joined by a fillet weld.

C) Gaps are not permitted for any parts joined by a fillet weld.

D) The fillet weld size must be increased by 6 mm to compensate for the gap.

A

A) The fillet weld size must be increased by 3 mm to compensate for the gap.

52
Q

Many standards have workmanship tolerances for groove welds. In CSA W59, what is the tolerance for the root face if not gouged? (Multiple choice)
Question 22 options:

A) Not limited

B) ± 2 mm

C) ± 5 mm

D) ± 8 mm

A

B) ± 2 mm

53
Q

How can out of roundness of cylindrical sections be checked? (Multiple choice)
Question 24 options:

A) With the cylinder vertical, multiplying the diameter at four different points.

B) With the cylinder vertical, dividing the circumference at four different points.

C) With the cylinder horizontal, checking the radius at the top and bottop of the cylinder.

D) With the cylinder horizontal, dividing the diameter at four different points.

A

B) With the cylinder vertical, dividing the circumference at four different points.

54
Q

A non-symmetrical camber requires a camber diagram for each separate piece. (True/False)
Question 25 options:
True
False

A

True

55
Q

What is the first task in inspecting completed welds? (Multiple choice)
Question 27 options:

A) Ensuring inspection tools are available for use.

B) Identify the weld processes used.

C) Check for post-weld heat treatment (PWHT) requirements.

D) Determine that the welds have been deposited in the correct locations.

A

D) Determine that the welds have been deposited in the correct locations.

55
Q

A groove weld bead reinforcement can be measured with the following devices(s): (Multiple choice)
Question 28 options:

A) A vernier or digital caliper

B) A micrometre

C) A fillet gauge

D) A Depth gauge or bridge cam gauge

A

D) A Depth gauge or bridge cam gauge

55
Q

Sweep in a beam is considered: (Multiple choice)
Question 26 options:

A) a slight curvature in a vertical plane.

B) a tortional difference between the top and bottom flange.

C) an arch or a curvature in the horizontal plane.

D) a curvature in the top or bottom flange of a beam.

A

C) an arch or a curvature in the horizontal plane.

56
Q

What is the main concerning issue with cracks? (Multiple choice)
Question 29 options:

A) Propagation to failure.

B) Visual degradation.

C) Excessive stress buildup in a structure.

D) Increased strain on a structure.

A

A) Propagation to failure.

57
Q

Weld pass sequencing, controlled heat input and weld progression are all ways of controlling: (Multiple choice)
Question 30 options:

A) HICC.

B) Solidification cracking.

C) Distortion.

D) Undercut.

A

C) Distortion.

58
Q

What dimension is measured to determine the size of a concave fillet weld? (Multiple choice)
Question 32 options:

A) The shortest leg.

B) The longest leg.

C) The throat.

D) The face width.

A

C) The throat.

59
Q

Which of the following statements is correct to check girder web flatness? (Multiple choice)
Question 31 options:

A) Place a spirit level on the web.

B) Position the web horizontally and stretch a string along the web, then measure the deviation.

C) Place a square against both flange and web to measure the gap.

D) Use a straight edge, length equal to web depth, and measure the deviation both perpendicular and parallel to the flange

A

D) Use a straight edge, length equal to web depth, and measure the deviation both perpendicular and parallel to the flange

60
Q

For convex fillet welds with unequal leg sizes, how is the size of the weld specified? (Multiple choice)
Question 33 options:

A) longer leg length.

B) shorter leg length.

C) throat.

D) face width.

A

B) shorter leg length.

60
Q

How should two cylinders (e.g., pipe ends) of slightly different radii be fitted together to minimize misalignment prior to making the girth weld? (Multiple choice)
Question 35 options:

A) Set the misalignment to zero at one point.

B) Set the misalignment equally at the quarter points.

C) Set the misalignment equal to twice the difference in radii at one point.

D) Set the misalignment equal to the code’s maximum tolerance at one point.

A

B) Set the misalignment equally at the quarter points.

61
Q

What is a complete joint penetration groove weld determined by? (Multiple choice)
Question 34 options:

A) Effective throat thickness including the face reinforcement.

B) Effective throat thickness including root reinforcement.

C) Effective throat thickness excluding root and face reinforcement.

D) Depth of the thickest plate being welded.

A

C) Effective throat thickness excluding root and face reinforcement.

62
Q

The precision of a measurement can be defined as: (Multiple choice)
Question 2 options:

A) how closely repeated values are to each other.

B) how closely repeated measurements are to the “true” value.

C) the precision of the tool in use for measurement.

D) how closely the same divisional value is given.

A

A) how closely repeated values are to each other.

63
Q

Why is statistical tracking of the actual dimensional values of a product important regardless of whether go/no go gauge measurements are within specifications? (Multiple choice)
Question 1 options:

A) Actual values are required by CSA W.47.1.

B) Actual values are needed for the inspection and test plan (ITP).

C) Actual values may identify problems with the welding procedure specification (WPS).

D) Actual values may indicate a potential out-of-control process.

A

D) Actual values may indicate a potential out-of-control process.

64
Q

What is the maximum misalignment (offset) of abutting parts without backing bars that is permitted by CSA W59? (Multiple choice)
Question 17 options:

A) 4 mm.

B) 10% of the thinner plate or 3 mm, whichever is smaller.

C) 2 mm for a joint length less than 1 m.

D) 2 mm for a joint of any length

A

B) 10% of the thinner plate or 3 mm, whichever is smaller.

CWB1 (10 decks)

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