Graphic Design Drawings
What are the 3 dimensions when drawing?
Height, width and depth
What are the 3 parts of a lever system?
Fulcrum, load and effort
Does a Pneumatic system use fluids?
No
What are the three types of structures?
Shell, frame and solid
What is a crank?
A simple mechanism that converts circular movement into linear movement
What is a hidden detail line?
A dashed line that shows what cannot be seen
True or False: A lever can have more than 1 pivot?
True
Give an example of a hydraulic system
[See book]
What are the 4 functions of structures?
Span, contain, support and protect
What does MA stand for?
Mechanical Advantage
What are some important rules to follow when drawing dimensions?
Use arrow heads and measure in mm
Mechanical Advantage is measured in
Newtons
Why is a pneumatic system an open system?
Because the compressed air needs to be let into the system first and then let out.
What are the structural members that reinforce? (5)
Beams, ties, struts, columns, guys
What is a compound pulley?
A pulley system that uses two or more pulleys to provide you with mechanical advantage
Oblique drawings are done at what angle?
45*
What class of lever is a human arm?
Class 3
Why is a pneumatic system weaker than a hydraulic system?
Hydraulics use fluid which is heavier than air
What are the main forces exerted on a structure?
Tension, Compression, Torsion
Define reciprocating movement
An up and down movement
If the drawing is 15 times smaller than the real life object, what would the scale be?
15:1
Give an example of a 1st, 2nd and 3rd class lever
[See Miss Fish]
What components make up a hydraulic system?
Cylinder, pump, motors, valve
What is the difference between a strut and corrugation?
A strut is a structural element that can resist a force of pushing down, and corrugation is the act of pleating
What is the MA in a double pulley system
2