Form 4 Mocks

GENETICS NOTES BIOLOGY FORM 4 MODEL14012023002

Explain how varnish in applied to newly prepared surface

Briefly explain the function of at least 4 parts of a tree trunk

Make a cross – section through a tree trunk naming all the parts.

Define the term timber conversion

The figure 4 below shows a bookshelf made of camphor wood. The back is fitted with a 3mm plywood. The number of screw used is 15. All members are 20mm thick.

Outline the procedure of applying a first – coat of oil paint on wooden surface

Figure 3 shows a rectangular speaker grill with a elliptical hole. Illustrate the procedure of making out the hole using pin and string method

With aid of sketch, describe each of the following timber defects

The figure below shows an isometric block. Draw the following views ( full size) in first angle projection:

The figure 2 below shows an exploded view of a joint used in woodwork. Sketch the views of the assembled joint in first – angle projection.

Illustrate two methods in edge treatment on a block board

The figures below shows an abrasive material

Outline the procedure of manufacturing chipboard from raw materials

Sketch the following methods of nailing: Dovetail nailing,