220 Inspection Flashcards
Macroetch testing is a form of non-destructive inspection
T/f
False
Macroetch testing requires an oxidizing acid to be used
T/f
T
Macro etch testing requires an oxidizing acid to be Used to etch the metal
T/f
True
Why is there an increasing need for welding quality?
- Gov. Regulations
- less conservative design
- economics
- safety
- all the above
ATB=all the above
Weld quality control should begin after welding has been initiated.
T/F
False
The welding inspector should have a basic understanding of:
- nondestructive test methods
- All the above
- welding processes
- codes and standards
ATB
The welding inspector is exposed to which of the following safety hazards:
- falling objects
- eye hazards
- electrical shock
- all the above
- welding radiation
ATB
The abbreviation “MSDS” means:
Material safety data sheet
Eye hazards found in welding operations include:
- Radiation energy
- all the above
- smoke and fumes
- flying objects
ATB
Which of the following is not considered a type of joint?
- t
- edge
- butt
- fillet
- corner
Fillet
The term for the type of joint formed when the two pieces to be joined lie in parallel planes and their edges overlap is:
T Corner Edge Butt Lap
Lap
The term for that portion of a single bevel joint where the two pieces to be joined come closest together is:
Radius None of the above Joint root Bevel angle Grove angle
Joint angle
In a single V-groove weld, the term for the sloped surfaces against which the weld metal is applied is:
Root Groove faces Root face None of the above Groove angle
Groove faces
The term for the type of weld produced by filling an elongated hole in an overlapping member attaching it to the member beneath is:
Spot weld Plug weld Slot weld Seam weld None
Slot
The term for a type of weld having a generally triangular cross section and which is applied to either a T, corner, or lap joint is:
- Flare weld
- Slot weld
- Flange weld
- Spot weld
- Fillet weld
Fillet weld
The term for the type of weld used to build up thinned surfaces, provide a layer of corrosion protection, or provide a layer of abrasion resistant material, is:
- Flare weld
- Flange weld
- Edge weld
- Slot weld
- Surfacing weld
- Surfacing weld
The term for the type of weld applied to the opposite side of a joint before a single V-groove weld is completed on the near side of a joint is:
- back weld
- melt-through weld
- backing weld
- none
- root weld
Backing weld
In a completed groove weld, the term for the surface of the weld on the side from which the welding was done is:
- weld reinforcement
- crown
- cap pass
- weld face
- root
Weld face
In a completed weld, the term for the junction between the weld face and the base metal is:
- leg
- weld edge
- root
- weld reinforcement
- toe
Toe
The term for the height of the weld face above the base metal in a groove weld is:
- crown
- all the above
- buildup
- face
- weld reinforcement
Weld reinforcement
In a fillet weld, the leg and size are the same for what type of configuration?
- effective throat
- equal leg fillet weld
- concave weld
- convex weld
- oversize weld
Equal leg fillet weld
The primary element of any welding symbol is referred to as the:
- weld symbol
- reference line
- tail
- arrow
- arrow side
Reference line
The graphic description of the type of weld is called the:
- tail
- arrow
- welding symbol
- none
- weld symbol
Weld symbol
A discontinuity is:
- none
- rejectible if it exceeds code limits.
- always a defect
- always acceptable
- always a reject
Rejectable if It exceed code limits
What discontinuity is generally considered to be most severe?
- arc strike
- porosity
- slag inclusions
- incomplete fusion
- crack
Crack
Which of the following discontinuities is less likely to be found visually?
- overlap
- undercut
- lamellar tear
- none
- toe crack
Lamellar tear
The weld discontinuity that results from improper termination of the welding arc is referred to as:
- overlap
- undercut
- incomplete fusion
- crater crack
- all the above
Crater crack
What weld discontinuity results when the welder travels too slowly, causing excess weld metal to flow out of the joint and lay on the base metal surface without fusing?
- Undercut
- none
- under fill
- overlap
- incomplete fusion
Overlap
LP produces a flaw indication that is much larger and easier for the eye to detect the flaw itself.
T/f
True
List the basic weld joints.
Lap Tee Butt Corner Edge
What is a destructive weld test used for
test for fusion and weld quality
Common types of destructive testing
Tensile testing Nick-break test Guided bend test Fillet weld break test Testing by etching
Types of Nondestructive testing
Visual inspection Penetrant inspection Magnetic particle testing Radiographic inspection Ultrasonic inspection
Common weld discontinuities and flaws in the typical weld.
porosity Inclusions Inadequate joint penetration Incomplete fusion Arc strikes Overlap Undercut Crater cracks underfill
A weld produced by filling a hole in an overlapping member, fusing to the member beneath.
Plug weld
Detailed written outlines explaining exactly how to weld is to be laid out, performed, and tested have made consistent quality welds possible:
Codes and standards
These are intended to be guidelines only and must be qualified for specific applications by testing:
Codes and standards
American Welding Society- used for bridges, buildings, and other structural steel.
AWS D1.1
AWS of Mechanical Engineers- Used for pressure vessels and nuclear components
ASME section IX
American Petroleum Institute-used for pipelines
API standard 1104
A set of written instructions by which a sound weld is made
Welding Procedure Qualification (WPS)
What do we call interruptions in the typical structure of the weld?
Discontinuities and flaws
A discontinuity that renders a part or product unable to meet minimum standards:
Defect
What percentage of welds have discontinuities and flaws, but are not necessarily defects?
All welds have some type of discontinuity or flaw in the weld or material being welded.
