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B.D.T(PRE-TECH)

27 - 07 - 2020
EXERCISE 10
ANSWERS TO EXERCISE 9 QUESTIONS

 20 - 07 - 2020
EXERCISE 9


Week 6 - Exercise 6

WEEK 5 - EXERCISE 5
(BDT CORE SKILLS) JHS 2 

(BOTH HOME AND PRE-TECH) 

SITUATION

A painter always stands on packed blocks before painting a wall, that makes him fall down at times. 

1.Write design brief about the situation above. 
2.Write two analysis question each of the following factors.
-Function
-Material 
3.With the aid of the diagram, identify six places problem can be identified in the school. 
4.Explain the following factors.
-Function
-Material
-Ergonomics
5.List six secondary methods of investigating problem.
6.State six primary means of gathering information when investigating problem.
7.6.Explain the term investigation.
8.State four purpose of investigation.
9.Explain the term design process.
10.State the first five stages of design process.






Week 3 - Exercise 3

Week 2 - Exercise 2

(BDT PRE-TECH) 
JHS 2 1. List five safety clothes to be worn in the workshop 
2. State one use each of the following measuring tools 
a. Surveyors tape measure b. Steel rule 3.Sketch the mixing and digging tools a. Shovel b. Pick axe 
4. State the type of alloy obtained from the following 
a. Lead and tin b. Copper and tin c. Copper and zinc 
5. What are aggregate? 
6. State four sources of sand.
7. State four sources of stone. 
8. What is adhesive? 
9. Sketch tape measure and label their parts. 
10. List eight examples of marking out and setting out tools. 
11. State the difference between center punch and dot punch. 
12. List five cutting techniques .
13. Sketch cross section of file and label the parts. 
14. Explain the following terms 
-Cross filing -Draw filing 
15. List four types of lines .


Week 1 - Exercise 1
B.D.T
PRE-TECHNICAL SKILLS
J.H. 2
1) List four (4) advantages and disadvantages each of general partnership.
2) State and explain the two types of business risk.
3) State two importance of packaging product.
4) List four (4) causes of food spoilage.
5) Explain the term food preservation and food spoilage.
6) State five reasons why we cook food.
7) What is timber?
8) State and explain the three ways of processing timber.
9) Neatly sketch a living tree and label the three parts.
10) State one function each of the three parts of the living tree,
11) Complete the passage below
Cement is a modern material from processed________________________and___________________
These materials are crushed and mixed with _______________________ to form a solution known as____________________________
The _____________________________________ is heated and becomes a hard substance called_______________________________
The ___________________________________ is ground in a __________________________ to a fine light green powder. A small amount of a substance referred to as _____________________________ is added to it to_______________________________.it is then bagged at ____________________________________ for sale.

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