T3 2023 Graphical Communication Exam Flashcards
What is CAD?
CAD is the use of computer-based software to aid in design processes.
What is Sketching?
Sketching is when you draw something by hand.
What are advantages of CAD?
Saves time, Decreases errors, File sharing
What are advantages of sketching?
Quick, No specialist equipment, Cheap
What are drawing standards?
Drawing standards are the conventions and guidelines that define how engineering drawings are created.
What are the Australian drawing standards?
It is AS 1100, and it supports drawings all around Australia.
What is an auxiliary view?
Auxiliary views are what show a surface of the shape to the exact proportions.
What is a section view?
A section view is a view used on a drawing to show an area or hidden part of an object by cutting away or removing some of that object. (Diagonal Lines)
What is an external thread?
External threads are those on bolts, studs, or screws.
What is an internal thread?
Internal threads refer to those on nuts and tapped holes.
What is a counterbore?
A cylindrical flat-bottomed hole that enlarges another coaxial hole. U
What is a countersunk hole?
A countersink is a tapered hole drilled with a wide outer portion. V
What is a cavalier projection?
Where receding lines are true length and 45 deg.
What is a cabinet projection?
Where receding lines are foreshortened by half.
What should a typical parts list include?
Part number, Manufacturing material, No. of parts needed
What does a M12 x 1.3 thread indicate?
It implies that it has a metric thread of 12mm diameter and 1.3mm pitch between thread crests.
What do circular shapes appear as when they are viewed at an angle other than 90 deg?
Elliptical (ovular)
What is a chamfer of 2mm thick and an angle of 45 deg dimensioned as?
2 x 45
What is a leader line?
A leader line is a line that establishes a connection between a graphical representation of an item and some text.
What is a dimension line?
Dimension line is a thin, solid line that shows the extent and direction of a dimension.
What is an extension line?
Extension line is a thin, solid line perpendicular to a dimension line, indicating which feature is associated with the dimension.
What can a pictorial view be?
Oblique, Isometric, Perspective
What is the difference between isometric projection and drawing?
Isometric drawings are full scale, and isometric projections have all edges foreshortened by 0.8 and is a true projection.
Disadvantages of CAD?
File loss, Expensive, Training
