WELDING PRINT READING EXAM QUESTIONS AND
ANSWERS | LATEST 2026/2027 UPDATE | GUARANTEED
PASS
1. What is the primary purpose of engineering drawings in the welding
industry?
A) To calculate the cost of materials
B) To communicate design, dimensions, and assembly requirements
C) To serve as a legal contract only
D) To determine the welding process solely
Correct Answer: B
Rationale: Engineering drawings serve as the universal language of
industry, effectively communicating all necessary design, dimensional,
and assembly information to the welder and fabricator.
2. Which type of drawing is typically used to test prototypes and
visualize complex assemblies before production?
A) Isometric drawing
B) CAD drawing
C) Freehand sketch
D) Blueprint
Correct Answer: B
Rationale: CAD (Computer-Aided Design) drawings allow engineers to
create precise 3D models that can be manipulated, tested, and analyzed
virtually before physical production begins.
,3. Which of the following is NOT typically included on a standard
welding print?
A) Photographs of the finished weld
B) Welding symbols
C) Dimensions and tolerances
D) Title block information
Correct Answer: A
Rationale: While reference photos might occasionally be attached to a
WPS, standard engineering and welding prints rely on standardized
symbols, dimensions, and notes rather than photographs to convey
technical requirements.
4. Another term often used interchangeably with xerography in the
context of reproducing drawings is:
A) Diazo process
B) Electrostatic process
C) Photographic reduction
D) Blueprint process
Correct Answer: B
Rationale: Xerography is a dry photocopying technique that relies
fundamentally on electrostatic principles to attract toner to a charged
drum and transfer the image to paper.
5. The electrostatic process used in laser printers and copiers relies on
which fundamental principle?
A) Like charges attract and opposite charges repel
B) Opposite charges attract and like charges repel
C) Heat fuses ink to paper without electrical charge
D) Magnetic fields align toner particles
Correct Answer: B
,Rationale: Electrostatic copying relies on the law of electrical charges
where opposite charges (the drum and the toner) attract each other,
while like charges repel to keep the background clean.
6. Which reproduction process consists of making a tracing,
developing and fixing a print, and then washing and drying the print?
A) Diazo process
B) Digital CAD printing
C) Blueprint process
D) Electrostatic process
Correct Answer: C
Rationale: The traditional blueprint process involves creating a tracing
on translucent paper, exposing it to light, developing it with chemicals,
fixing the image, and washing away excess chemicals.
7. Which type of computer output device mimics the motion that a
human hand might make while drawing?
A) Laser printer
B) Inkjet printer
C) Pen plotter
D) Electrostatic plotter
Correct Answer: C
Rationale: Pen plotters physically move a pen or pens across a sheet of
paper along X and Y axes to draw lines, closely mimicking the
mechanical motion of a human hand drafting.
8. Which line type is used to show the visible edges and outlines of an
object on a drawing?
A) Hidden line
B) Center line
, C) Object line
D) Dimension line
Correct Answer: C
Rationale: Object lines are thick, continuous lines that define the visible
outlines and edges of the physical part being depicted.
9. What is the purpose of a hidden line in an orthographic projection?
A) To show the center of symmetrical features
B) To represent edges that are not visible from the current viewing
angle
C) To indicate the path of a cutting plane
D) To show alternate positions of moving parts
Correct Answer: B
Rationale: Hidden lines are composed of short dashes and are used to
represent internal or obscured edges that would not be visible to the
naked eye from the current perspective.
10. Which line type consists of alternating long and short dashes and
is used to indicate the center of circles and symmetrical features?
A) Phantom line
B) Center line
C) Break line
D) Section line
Correct Answer: B
Rationale: Center lines are used to define the geometric center of
symmetrical objects, circles, and cylindrical features.
11. A line that is drawn at an angle to represent a surface that is not
perpendicular to any of the principal planes is called a:
A) Vertical line
ANSWERS | LATEST 2026/2027 UPDATE | GUARANTEED
PASS
1. What is the primary purpose of engineering drawings in the welding
industry?
A) To calculate the cost of materials
B) To communicate design, dimensions, and assembly requirements
C) To serve as a legal contract only
D) To determine the welding process solely
Correct Answer: B
Rationale: Engineering drawings serve as the universal language of
industry, effectively communicating all necessary design, dimensional,
and assembly information to the welder and fabricator.
2. Which type of drawing is typically used to test prototypes and
visualize complex assemblies before production?
A) Isometric drawing
B) CAD drawing
C) Freehand sketch
D) Blueprint
Correct Answer: B
Rationale: CAD (Computer-Aided Design) drawings allow engineers to
create precise 3D models that can be manipulated, tested, and analyzed
virtually before physical production begins.
,3. Which of the following is NOT typically included on a standard
welding print?
A) Photographs of the finished weld
B) Welding symbols
C) Dimensions and tolerances
D) Title block information
Correct Answer: A
Rationale: While reference photos might occasionally be attached to a
WPS, standard engineering and welding prints rely on standardized
symbols, dimensions, and notes rather than photographs to convey
technical requirements.
4. Another term often used interchangeably with xerography in the
context of reproducing drawings is:
A) Diazo process
B) Electrostatic process
C) Photographic reduction
D) Blueprint process
Correct Answer: B
Rationale: Xerography is a dry photocopying technique that relies
fundamentally on electrostatic principles to attract toner to a charged
drum and transfer the image to paper.
5. The electrostatic process used in laser printers and copiers relies on
which fundamental principle?
A) Like charges attract and opposite charges repel
B) Opposite charges attract and like charges repel
C) Heat fuses ink to paper without electrical charge
D) Magnetic fields align toner particles
Correct Answer: B
,Rationale: Electrostatic copying relies on the law of electrical charges
where opposite charges (the drum and the toner) attract each other,
while like charges repel to keep the background clean.
6. Which reproduction process consists of making a tracing,
developing and fixing a print, and then washing and drying the print?
A) Diazo process
B) Digital CAD printing
C) Blueprint process
D) Electrostatic process
Correct Answer: C
Rationale: The traditional blueprint process involves creating a tracing
on translucent paper, exposing it to light, developing it with chemicals,
fixing the image, and washing away excess chemicals.
7. Which type of computer output device mimics the motion that a
human hand might make while drawing?
A) Laser printer
B) Inkjet printer
C) Pen plotter
D) Electrostatic plotter
Correct Answer: C
Rationale: Pen plotters physically move a pen or pens across a sheet of
paper along X and Y axes to draw lines, closely mimicking the
mechanical motion of a human hand drafting.
8. Which line type is used to show the visible edges and outlines of an
object on a drawing?
A) Hidden line
B) Center line
, C) Object line
D) Dimension line
Correct Answer: C
Rationale: Object lines are thick, continuous lines that define the visible
outlines and edges of the physical part being depicted.
9. What is the purpose of a hidden line in an orthographic projection?
A) To show the center of symmetrical features
B) To represent edges that are not visible from the current viewing
angle
C) To indicate the path of a cutting plane
D) To show alternate positions of moving parts
Correct Answer: B
Rationale: Hidden lines are composed of short dashes and are used to
represent internal or obscured edges that would not be visible to the
naked eye from the current perspective.
10. Which line type consists of alternating long and short dashes and
is used to indicate the center of circles and symmetrical features?
A) Phantom line
B) Center line
C) Break line
D) Section line
Correct Answer: B
Rationale: Center lines are used to define the geometric center of
symmetrical objects, circles, and cylindrical features.
11. A line that is drawn at an angle to represent a surface that is not
perpendicular to any of the principal planes is called a:
A) Vertical line
