EDUDELIGHT SECONDARY SCHOOL
1 BENSON AVENUE, LEKKI PHASE 1, LAGOS.
FIRST TERM CAT 2 2017/2018
SUBJECT:BASIC TECHNOLOGY CLASS:JSS3 TIME:40min
OBJECTIVE: Answer all questions
1.Which of the following is not an artificial wood defects?(a)bow (b)cup (c)ring shake (d)insect attack.
2.There are ………….methods of cutting veneers.(a)4 (b)2 (c)3 (d)5
3.Which of the following is not a method of processing plastics?(a)compression moulding (b)extraction method (c)injection moulding (d)vacuum forming.
4.Natural rubber is made from a milky liquid called…..(a)latex (b)rubble (c)sap (d)solution.
5.The spark plug in motorcar engines is a…….product.(a)ceramics (b)metallic (c)non-metallic (d)rubber.
6.In pottery,clay is mixed with water and pounded to remove……(a)air bubbles (b)excess heat (c)sand content (d)water log.
7………… are used to indicate that certain surfaces of metal parts are to be machined or machine allowance has to be provided.(a)ring lines (b)extension lines (c)elevation lines (d)finish marks.
8……………..is a type of drawing that shows three dimensions or sides of objects simultaneously on a single drawing.(a)isometric drawing (b)life drawing (c)multiview drawing (d)orthographic sketches.
9.The three intersecting lines of the isometric axes meet at a point called the…..(a)varnishing point (b)origin (c)right angle (d)angle of projection.
10.The purpose of wood finishes is to……..(a)prevent wood from warping (b)soften the wood (c)prevent the wood from absorbing water (d)make the wood last longer.
2.Describe briefly two of the following processes used in the manufacturing of plastics?
a.compression moulding b.extrusion moulding c.film blowing d.injection moulding