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B.D.T(PRE-TECH)

Week 6 - Exercise 6



WEEK 5
(BDT PRE-TECH) 
ASSIGNMENT 5
1.   Explain bolts and nuts.
2.   Neatly sketch bolts and nuts.
3.   State one use of bolts and nuts.
4.   Sketch the Cross-section  of screw and label the parts.
5.   State one use of screw.
6.   Explain nail
7.   List the three types of nail.
8.   Sketch the cross-section of nail and label the parts.
9.   State two uses of nail.
10. List five types of rivert.
11. Sketch the symbol of the following electrical component.
     -Capacitor
     -Diode
     -Inductor
     -LED
12. Draw an electrical circuit diagram showing the following symbols
      -Bulb
      -Two batteries in parallel.

Week 4 - Exercise 4
Week 2 - Exercise 2

(BDT PRE-TECH) JHS 3 1.Sketch simple electrical circuit and indicate the following. 
a. Battery 
b. Switch 
c. Bulb/lamp d. Connecting wire
2.Explain the function of the following electrical component 
- Capacitor - Inductor - Diode - Resistor 
3.Sketch the of the symbols of the electrical components stated in question 2.
4.Explain the following a. Voltage b. current
5.State six tools use for soldering. 
6.Neatly sketch the types of soldering bit or iron.
7.Sketch two types of folding bar and label the parts. 
8.State one use each of the following 
a. Curved /bent snips b. Straight snips 
9.List three materials used for soldering. 
10.List four tools used for soldering. 
11.What is flux? 
12.List five fluxes used for soldering. 
13.State two reasons for using flux when soldering. 
14.Sketch the following types of joints - lap joint - but joint - grooved joint 
15.Explain the term fasteners. 
16.List six types of fasteners.

Week 1 - Exercise 1
BASIC DESIGN AND TECHNOLOGY
PRE-TECHNICAL SKILLS
J.H. 3

(1) List five examples of elements of design
(2) List five examples of principles of design
(3) Ghanaian meaning of colors
Color
Meaning (Symbolism)
Red

Violet

Gold

Yellow

(4) List the six food group in order.
(5) Give two examples each of the six food groups.
(6) List two (2) stitches each under temporary and permanent.
(7) Explain temporary and permanent.
(8) What is finishes?
(9) List the three groups of finishes.
(10) State two reasons for applying surface finishes.
(11) List three types of finishes with their respective thinners.
(12) Neatly sketch the following laying tool with one used each.
(i) Trowel,
(ii) Spirit level,
(iii) Straight edge,
(iv) Gauge Rod.

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