Welding Quality and Defect Identification Assessment
What is the term for a void or cavity that forms within a weld?
a. Porosity
b. Undercut
c. Slag inclusion
d. Overlap
a. Porosity
What is the primary purpose of using a combination square in welding layout?
a. To measure voltage output
b. To create perfect 90-degree angles and measure distances
c. To test weld penetration
d. To clean the welding surface
B. To create perfect 90-degree angles and measure distances
Which organization is primarily responsible for developing welding codes and standards in the United States?
a. American Welding Society (AWS)
b. International Standards Organization (ISO)
c. American Society of Mechanical Engineers (ASME)
d. Occupational Safety and Health Administration (OSHA)
A. American Welding Society (AWS)
What does a weld symbol placed below the reference line indicate?
a. Weld on arrow side
b. Weld on other side
c. Weld on both sides
d. No weld required
A. Weld on arrow side
What is the primary purpose of the flux coating in SMAW?
a. To increase welding speed
b. To provide shielding gas and protect the weld pool
c. To conduct electricity
d. To cool the electrode
B. To provide shielding gas and protect the weld pool
Which defect occurs when the weld metal extends beyond the toe or root of the weld without fusion?
a. Cold lap
b. Crater crack
c. Hot crack
d. Overlap
D. Overlap
Which measuring tool is most appropriate for checking the gap between two pieces to be welded?
a. Feeler gauge
b. Protractor
c. Level
d. Tape measure
A. Feeler gauge
What is the primary purpose of Welding Procedure Specifications (WPS)?
a. To document equipment maintenance schedules
b. To provide detailed instructions for performing specific welds
c. To record welder certification dates
d. To track material costs
B. To provide detailed instructions for performing specific welds
Which symbol represents a fillet weld?
a. Triangle
b. Square
c. Circle
d. Rectangle
A. Triangle
Which component creates the arc in SMAW welding?
a. The base metal
b. The flux coating
c. The electrical current
d. The electrode core
C. The electrical current
What is the minimum acceptable throat thickness for a fillet weld?
a. 50% of the thinner base metal
b. 75% of the thinner base metal
c. 100% of the thinner base metal
d. 125% of the thinner base metal
b. 75% of the thinner base metal
What is the acceptable tolerance for most standard structural welding fit-ups?
a. ± 1/32 inch
b. ± 1/16 inch
c. ± 1/8 inch
d. ± 1/4 inch
C. ± 1/8 inch
When measuring fit-up tolerance in welding, what is the maximum acceptable root gap for most structural applications?
a. 1/8 inch
b. 1/2 inch
c. 3/16 inch
d. 1/4 inch
C. 3/16 inch
In welding symbols, what does the arrow point to?
a. The thickness of the weld
b. The joint location
c. The weld length
d. The finish type
C. The weld length
3. What is the typical voltage range used in SMAW welding?
a. 5-15 volts
b. 40-95 volts
c. 17-45 volts
d. 100-200 volts
C. 17-45 volts
Which condition occurs when there is insufficient weld metal at the root of the weld?
a. Excessive reinforcement
b. Incomplete fusion
c. Incomplete penetration
d. Underfill
C. Incomplete Penetration
What tool should be used to check if pipes are perfectly round before welding?
a. Spirit level
b. Pipe level
c. Outside caliper
d. Pi tape
D. Pi tape
Which document records the actual variables used during the welding procedure qualification?
a. Quality Control Report
b. Welding Log Book
c. Work Order Sheet
d. Procedure Qualification Record (PQR)
D. Procedure Qualification Record (PQR)
What does a flag at the arrow junction indicate?
a. Multiple welds required
b. Field weld
c. Shop weld
d. Intermittent weld
B. Field weld
What happens to the flux coating during the welding process?
a. It becomes slag
b. It evaporates completely
c. It becomes part of the weld metal
d. It remains unchanged
A. It becomes slag
What causes tungsten inclusions in a TIG weld?
a. Excessive travel speed
b. Contaminated shielding gas
c. Touching electrode to weld pool
d. Wrong polarity setting
C. Touching electrode to weld pool
What causes tungsten inclusions in a TIG weld?
a. Excessive travel speed
b. Contaminated shielding gas
c. Touching electrode to weld pool
d. Wrong polarity setting
C. Touching electrode to weld pool
What is the primary purpose of pre-heating in welding?
a. To increase welding speed
b. To reduce distortion
c. To decrease material strength
d. To control cooling rates
D. To control cooling rates
Which dimension is shown in the weld symbol tail?
a. Weld spacing
b. Root opening
c. Specification or process
d. Weld size
C. Specification or process
Which of these is NOT a common type of SMAW electrode coating?
a. Rutile
b. Cellulosic
c. Mercury-based
d. Basic (low hydrogen)
C. Mercury-based