Inspection

Question 1

What is a key advantage of liquid penetrant inspection?

Requires no special training
Detects subsurface flaws
Can be used in hard-to-access areas with portable kits
Works only on ferrous materials

Answer 1

Can be used in hard-to-access areas with portable kits

Question 2

Put each option into the correct type of testing category.
(Destructive test) (Non-destructive test)

Nick break test
Guided bend test
Etching
Ultrasonic test
Liquid penetrant inspection
Magnetic particle test

Answer 2

(Destructive test)
Nick break test
Guided bend test
Etching

(Non-destructive test)
Ultrasonic test
Liquid penetrant inspection
Magnetic particle test

Question 3

Which aspect is NOT typically observed in a macro-etch test?

Subsurface inclusions and fusion defects
Heat-affected zone (HAZ) characteristics
The material’s magnetic properties
Weld bead shape and penetration

Answer 3

The material’s magnetic properties

Question 4

A liquid penetrant test is an effective method for detecting what types of discontinuities and defects?

Lack of fusion
Cracks
Lack of penetration
Porosity

Answer 4

Cracks
Porosity

Question 5

A welded test piece made from two plates set in a V‑shaped position on a base block, with a weld placed along the joint (Picture Question)

Charpy test
Nick break test
Fillet weld break test
Guided bend test

Answer 5

Fillet weld break test

Question 6

What are the three types of guided bend tests?

Root, Groove and Side bends
Root, Face and Side bends
Face, Groove and Side bends
Root, Face and Groove bends

Answer 6

Root, Face and Side bends

Question 7

What mechanical property is NOT evaluated by a tensile test?

Brittleness
Magnetic properties
Ductility
Yield strength

Answer 7

Magnetic properties

Question 8

Which impact test is most commonly used to measure material toughness?

Rockwell hardness test
Izod impact test
Drop weight test
Charpy impact test

Answer 8

Charpy impact test

Question 9

What is the main disadvantage of destructive testing?

It requires expensive equipment only
It is less accurate than visual inspection
It cannot detect internal discontinuities
It destroys or damages the part being examined

Answer 9

It destroys or damages the part being examined

Question 10

Magnetic particle testing is one of the most effective ways to detect fine cracks that propagate on a weld surface. Select all types of materials that can be used with this non-destructive testing process.

Mild steel
Bronze
Austenitic stainless steel
Aluminum
Cast iron

Answer 10

Mild steel
Cast iron

Question 11

What is the maximum allowable crack size on the convex surface of a guided bend test specimen according to CSA W47.1?

6 mm, except for corner cracks resulting from slag inclusions
3 mm
10 mm
5 mm

Answer 11

3 mm

Question 12

What does visual inspection (VT) check for before welding?

Paint damage
Porosity
Shipping damage, laminations, and harmful surface conditions
Weld bead appearance

Answer 12

Shipping damage, laminations, and harmful surface conditions

Question 13

What governing body, code book, regulates welder testing on mild steel?

CSA W47.2
Z662
W59
CSA W47.1

Answer 13

CSA W47.1

Question 14

What details can be observed and measured when a weld is “etched” (destructive test)
Select all that apply.

Shielding gas flow rate
Chemical composition of the filler metal
Presence of cracks, inclusions and incomplete fusion
Tensile strength of the base metal
Number of passes
Size of weld
Welding current used during the process
Extent and shape of penetration

Answer 14

Presence of cracks, inclusions and incomplete fusion
Number of passes
Size of weld
Extent and shape of penetration

Question 15

What type of flaws does radiographic testing primarily detect?

Surface porosity
Surface discoloration
Magnetic irregularities
Subsurface volumetric discontinuities

Answer 15

Subsurface volumetric discontinuities

Question 16

A diagram showing a welded plate being bent around a roller. The metal is wrapped tightly around the roller’s surface while measurements and labels indicate how the material is positioned and guided during the bending process. (Picture Question)

Tensile test
Plunger guided bend test
Nick break test
Wrap around guided bend test

Answer 16

Wrap around guided bend test

Question 17

Leak test do not require high pressures to be performed.

True
False

Answer 17

True

Question 18

What steps should be taken when prepping specimens for bend testing, to prevent stress raisers or premature failure?
Select all that apply.

Remove backing bar
Edges should be radiused
VT check
All grinding marks should be parallel to the length of the weld

Answer 18

Edges should be radiused
All grinding marks should be parallel to the length of the weld

Question 19

Match the type of non-destructive testing to its advantage.
Ultrasonics-
Radiography-
Magnetic particle-
Liquid penetrant-

Only detects surface or near surface discontinuities
Results not immediate
Slow if applied manually to long weld lengths
Cannot be used on hot or cold parts

Answer 19

Ultrasonics- Slow if applied manually to long weld lengths

Radiography- Results not immediate

Magnetic particle- Only detects surface or near surface discontinuities

Liquid penetrant- Cannot be used on hot or cold parts

Question 20

What is the primary difference between Non-Destructive Testing (NDT) and Non-Destructive Evaluation (NDE)?

NDE applies to ferrous materials only, while NDT applies to all materials
NDT is destructive, while NDE is not
NDE uses visual inspection, while NDT does not
NDT focuses only on locating discontinuities, while NDE includes measuring them

Answer 20

NDT focuses only on locating discontinuities, while NDE includes measuring them

Question 21

Which of the following is NOT a common NDT method?

Visual Inspection
Tensile Testing
Magnetic Particle Testing
Radiographic Testing

Answer 21

Tensile Testing

Question 22

What type of sub-surface discontinuities can be reveled during a destructive test?
Select all that apply.

Spatter
Overlap (cold lap surface condition)
Surface oxidation
Lack of fusion
Excess reinforcement
Crack
Lack of penetration
Porosity
Slag inclusions

Answer 22

Lack of fusion
Crack
Lack of penetration
Porosity
Slag inclusions

Question 23

Guided bend test are used in industry for?
Select all that apply

The ability to determine the maximum amount of pressure the test sample can withstand
To determine ductility in a weldment
The ability of a welder to make sound welds
The suitability of a welding procedure

Answer 23

The ability of a welder to make sound welds
The suitability of a welding procedure

Question 24

What destructive test is used to determine the “yield point” of material?

Impact test
Nick break test
Tensile test
Bend test

Answer 24

Tensile test

Question 25

What creates darker spots on radiographic film? Highly reflective weld beads Areas with subsurface discontinuities allowing more radiation to pass through Surface discontinuities like undercuts Areas of higher density

Answer 25

Areas with subsurface discontinuities allowing more radiation to pass through

Question 26

When are side bend tests preferred over face or root bend tests? When evaluating fillet welds For materials thicker than 10 mm When testing non-ferrous metals When testing thin materials

Answer 26

For materials thicker than 10 mm

Question 27

Match the letter designation to their corresponding type of non-destructive test. (PT) (VT) (RT) (MT) Visual test Radiographic test Magnetic particle test Penetrant test

Answer 27

(PT) Penetrant test (VT) Visual test (RT) Radiographic test (MT) Magnetic particle test