TIJ101 Tech Exam Review
1. 4 main types of technology career? Motive Power Service Construction Industrial
2. Orthographic and Isometric Orthographic – 2-D perspectivesIsometric – 3-D perspective - typically shown top, front, side
3. Choose the correct orthographic drawing
4b. What does the dotted line in an orthographic drawing mean? There is a change in elevation that you cannot see from that particular perspective.
6. Know safety rules: A) In any working environment what are you responsible to do? ◦- ensure the safety of yourself and others B) What is proper clothing for working in the shop? ◦- no lose clothes (hoods, scarves, etc.), no jewelry C) What happens if you don’t follow proper safe working procedures? ◦- you could get hurt, someone else could get hurt, something could get broken D)What should you ensure when working with power tools? - Unplug when not in use, put down correctly, use correctly & safely E) How high should the blade guard be? - Just above the material you are cutting
7. 3 types of levers & example -seesaw, pliers, scissors -Wheelbarrow, nutcracker, -Bat, broom, fishing rod, tweezers
8. How increase levers ability to work? Move the fulcrum closer to the load
9. Define: Hydraulics, Pneumatics Hydraulics – uses fluid to make things work Pneumatics – uses gas to make things work
10. Different types of motion Liner Oscillating Rotary Reciprocal
11. Two main types of pulleys FixedMoveable
12. How make the wheels of a 2 wheel pulley rotate in opposite directions Cross the belt/rope
13. Give example of a wheel & Axel Wheelbarrow, car drive train, bicycle, doorknob
14. Why gears used? - change direction of force - increase or decrease force/speed - transmit motion
15. Calculate ration of gear train Wheel has 60 teeth, driven wheel has 15 teeth. What is the ration of the gear train? ◦= 4:1
16. Examples of Simple Machine ◦lever ◦Pulley ◦Wheel & axle ◦Inclined plane ◦Wedge ◦screw
17. What is an inclined plane? - a type of lever - also called a ramp - a flat supported surface tilted at an angle
18. Working with tools & materials A) How long until Carpenters glue is dry? min B) What is the heating tool that heats acrylic? Strip heater C) What is the machine used to drill holes? Drill press D) What is the name of the tool to cut metal? Hack saw E) What tools cut curves in wood? Scroll saw, jig saw, coping saw F) 3 types of screwdrivers? Standard (straight), Robertson (square), Phillips (star)
18g) Identify the tools Spring Clamps Jig Saw Hand Saw Hand Screw Drill Press Try Square