JSS1 BASIC SCIENCE FIRST TERM CAT 1
TIME: 40 minutes
INSTRUCTION: Answer all questions in Sections A and B.
SECTION A: OBJECTIVE TEST
NO. OF QUESTIONS: 20
SPECIFIC INSTRUCTION: Select the correct answer from the options a – d.
- Examples of hardwood include all the following EXCEPT (a) cedar. (b) obeche. (c) mansonia. (d) mahoghany.
- The best colour to identify iroko timber is (a) reddish-brown. (b) yellowish-brown. (c) dark-green. (d) grayish-white.
- Hardwood is also known as (a) cedar. (b) coniferous. (c) deciduous. (d) mahoghany.
- The cambium layer of a tree is the (a) actual living part. (b) mature part of the tree. (c) storage part of the tree. (d) central core of the trunk.
- Metals that contain iron are called (a) mild steel. (b) ferrous iron. (c) non-ferrous iron. (d) cast iron.
- All these are general safety precautions in the workshop EXCEPT (a) clean machines after use. (b) do not use chisels or files without a handle. (c) keep workshops clean and neat at all times. (d) do not listen to instructions.
- The classifications of wood are ……….
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