May Exam

Question 1

Most hardwoods come from trees that…

Answer 1

Are deciduous trees and shed leaves

Question 2

Most softwoods come from trees that…

Answer 2

Are evergreen and don’t shed leaves

Question 3

What are four hardwoods?

Answer 3

Mahogany
Beech
Ash
Oak

Question 4

What are four soft woods?

Answer 4

Pine
Parana pine
Cedar
Spruce

Question 5

Name three man made boards

Answer 5

Ply wood
Medium density fibre board
Chip board

Question 6

Name a manufactured board used to make the mechanical toy.

Answer 6

MDF

Question 7

What plastic did you use for the picture frame?

Answer 7

Acrylic

Question 8

Give two reasons why acrylic is suitable for your picture frame.

Answer 8

Clear
Cheaper than other plastics
Flexible.

Question 9

What does CAD and CAM stand for?

Answer 9

Computer Aided Design

Computer Aided Manufacturing

Question 10

Name the three basic parts of a lever

Answer 10

Fulcrum
Load
Effort

Question 11

Gears are wheels with teeth which mesh to transport rotary motion. When two or more mesh it is called a gear train.
There are two types…

Answer 11

Simple and compound

Question 12

There are several types of gearing systems.
For example…
This converts rotary motion into linear.

Answer 12

Rack and pinyon.

Question 13

….. are cone shaped. The angle is known as a… They transfer rotary motion through 90 degrees.

Answer 13

Bevel gears are cone shaped.

Bevel