RECF FUNDAMENTALS LATEST EXAM ACTUAL 2026/2027
QUESTIONS AND SOLUTIONS RATED A+
✔✔What is Product Development? - ✔✔The process of turning knowledge and ideas
into a physical or prototype (idea to thing)
✔✔What is Rapid Prototyping used for? - ✔✔To reduce the development time for new
products; usually referring to 3D printing
✔✔What is Additive manufacturing? - ✔✔A form of manufacturing which involves
building up a product from raw material; 3D printing is a form of this
✔✔What is Subtractive manufacturing? - ✔✔A form of manufacturing which involves
taking away material from a base chunk to create a product; CNC (Computer
Numerically Controlled) Milling machines and lathes are a form of this
✔✔What is Blow Molding? - ✔✔A plastic manufacturing technique where a base plastic
shape is heated and then inflated with air pressure inside a mold to give it a shape;
plastic bottles are made like this (THERMOPLASTICS)
✔✔What is Injection Molding? - ✔✔A plastic manufacturing technique where plastic
beads are melted and injected at pressure into a mold; most plastic items are made like
this (THERMOPLASTICS usually but not always)
✔✔What is Vacuum Forming? - ✔✔A plastic manufacturing technique where plastic
sheets are heated and placed over a mold, then a vacuum is created that pulls the
sheet around the mold to give it shape; plastic packaging is often created using this
(THERMOPLASTICS)
✔✔What is Roto-Molding? - ✔✔A plastic manufacturing technique where plastic beads
are melted in a mold that is then rotated to coat its insides; large hollow plastic items are
made like this (THERMOPLASTICS)
✔✔What is used in Mass Production? - ✔✔"Jigs and Fixtures", "Time and Motion
Studies", and automation and Robotics
✔✔What is an Orthographic Projection? - ✔✔A two-dimensional representation of an
object, usually including three views and providing true length images
✔✔What else could the term "Orthographic" refer to? - ✔✔Depictions of objects where
the axis or plane of the object is parallel with the projection plane (multiview
orthographic projections)
, ✔✔What is an Isometric Projection? - ✔✔A three-dimensional representation of an
object that can also be referred to as pictorial, usually paired with orthographic
projections (Pectorals are psuedo-3D drawings, isometric projections are 3D
representations of an object)
✔✔What is a Scale Factor? - ✔✔A tool that tells you how many times larger an object is
than another, usable with areas² or volumes³; useful in projecting cost of a project
✔✔Are Electrical Schematics to scale? - ✔✔No
✔✔What is Absolute position? - ✔✔Coordinates relative to the origin
✔✔What is Relative position? - ✔✔Coordinates relative to some other object
✔✔What are Snaps, in relation to CAD? - ✔✔When points or objects automatically
moves to a coordinate grid, as in "snap to a grid"
✔✔If a cylinder is cut by an inclined plane, what is the inclined surface? - ✔✔An ellipse,
although in top view it will appear as a circle and in front view appear as a line
✔✔If a circular shape is shown inclined in another view and projected onto the adjacent
view, how does it appear? - ✔✔As an ellipse, even though it is a circle, and it will not be
shown as a true shape in any view
✔✔What is a Shop Drawing? - ✔✔A drawing or set of drawings produced by the
contractor, supplier, manufacturer, subcontractor, or fabricator; they are typically
required for prefabricated components and show more detail than the construction
documents, and are drawn to explain fabrication and/or installation of items
✔✔What is a Redline Drawing? - ✔✔Redline drawings are the actual corrected
drawings made in the field; redlining refers to a "correction" showing how something
was actually constructed (term usually used interchangeably with as built drawings)
✔✔What is a As Built Drawing? - ✔✔Once redline drawings are created, they are
submitted to the engineer or architect who converts them into final professional "as
built" drawings, to be kept on file (term usually used interchangeably with redline
drawings)
✔✔What is an Exploded View? - ✔✔A diagram, picture, or technical drawing of an
object that shows the relationship or order of assembly of various parts; used in parts
catalogs, assembly and maintenance manuals, and other instructional material
QUESTIONS AND SOLUTIONS RATED A+
✔✔What is Product Development? - ✔✔The process of turning knowledge and ideas
into a physical or prototype (idea to thing)
✔✔What is Rapid Prototyping used for? - ✔✔To reduce the development time for new
products; usually referring to 3D printing
✔✔What is Additive manufacturing? - ✔✔A form of manufacturing which involves
building up a product from raw material; 3D printing is a form of this
✔✔What is Subtractive manufacturing? - ✔✔A form of manufacturing which involves
taking away material from a base chunk to create a product; CNC (Computer
Numerically Controlled) Milling machines and lathes are a form of this
✔✔What is Blow Molding? - ✔✔A plastic manufacturing technique where a base plastic
shape is heated and then inflated with air pressure inside a mold to give it a shape;
plastic bottles are made like this (THERMOPLASTICS)
✔✔What is Injection Molding? - ✔✔A plastic manufacturing technique where plastic
beads are melted and injected at pressure into a mold; most plastic items are made like
this (THERMOPLASTICS usually but not always)
✔✔What is Vacuum Forming? - ✔✔A plastic manufacturing technique where plastic
sheets are heated and placed over a mold, then a vacuum is created that pulls the
sheet around the mold to give it shape; plastic packaging is often created using this
(THERMOPLASTICS)
✔✔What is Roto-Molding? - ✔✔A plastic manufacturing technique where plastic beads
are melted in a mold that is then rotated to coat its insides; large hollow plastic items are
made like this (THERMOPLASTICS)
✔✔What is used in Mass Production? - ✔✔"Jigs and Fixtures", "Time and Motion
Studies", and automation and Robotics
✔✔What is an Orthographic Projection? - ✔✔A two-dimensional representation of an
object, usually including three views and providing true length images
✔✔What else could the term "Orthographic" refer to? - ✔✔Depictions of objects where
the axis or plane of the object is parallel with the projection plane (multiview
orthographic projections)
, ✔✔What is an Isometric Projection? - ✔✔A three-dimensional representation of an
object that can also be referred to as pictorial, usually paired with orthographic
projections (Pectorals are psuedo-3D drawings, isometric projections are 3D
representations of an object)
✔✔What is a Scale Factor? - ✔✔A tool that tells you how many times larger an object is
than another, usable with areas² or volumes³; useful in projecting cost of a project
✔✔Are Electrical Schematics to scale? - ✔✔No
✔✔What is Absolute position? - ✔✔Coordinates relative to the origin
✔✔What is Relative position? - ✔✔Coordinates relative to some other object
✔✔What are Snaps, in relation to CAD? - ✔✔When points or objects automatically
moves to a coordinate grid, as in "snap to a grid"
✔✔If a cylinder is cut by an inclined plane, what is the inclined surface? - ✔✔An ellipse,
although in top view it will appear as a circle and in front view appear as a line
✔✔If a circular shape is shown inclined in another view and projected onto the adjacent
view, how does it appear? - ✔✔As an ellipse, even though it is a circle, and it will not be
shown as a true shape in any view
✔✔What is a Shop Drawing? - ✔✔A drawing or set of drawings produced by the
contractor, supplier, manufacturer, subcontractor, or fabricator; they are typically
required for prefabricated components and show more detail than the construction
documents, and are drawn to explain fabrication and/or installation of items
✔✔What is a Redline Drawing? - ✔✔Redline drawings are the actual corrected
drawings made in the field; redlining refers to a "correction" showing how something
was actually constructed (term usually used interchangeably with as built drawings)
✔✔What is a As Built Drawing? - ✔✔Once redline drawings are created, they are
submitted to the engineer or architect who converts them into final professional "as
built" drawings, to be kept on file (term usually used interchangeably with redline
drawings)
✔✔What is an Exploded View? - ✔✔A diagram, picture, or technical drawing of an
object that shows the relationship or order of assembly of various parts; used in parts
catalogs, assembly and maintenance manuals, and other instructional material
