• UNIT 1: Mechanical and blacksmith tools

    1. Look at the picture below carefully.
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    2. Describe the situation shown in the picture.
    3. Who is the right person recommended to help in such situation?
    4. What kind of tools are required in such situation?
    1.1 Mechanics tools
    Find out
    1. Who a mechanic is.
    2. How to use and maintain mechanical tools.
    3. Where does a mechanic store his or her tools.
    4. What will happen if mechanics were not in our society today?
    a) Identification of mechanic tools
    Activity 1.1 Identifying mechanics tools
    1. Visit a nearby mechanics garage. Look at the people working in
    the garage. What tools are they using? Which of these tools do
    you know?
    2. List down the tools the mechanics are using. What are the tools
    being used for?
    3. Come up with a table like this.
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    A mechanic is a person who enable our machines to work properly.
    Table 1.1 Common mechanics tools and their uses
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    b) Uses of mechanics tools
    Activity 1.2 Practicing use of mechanics tools
    1. Visit a garage while it is operating.
    2. Observe the tools being used and how the mechanic uses them.
    Come up with a table like this.
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    3. Use the tools yourself (You will be guided by the mechanic).
    What challenges did you encounter?
    Table 1.2 Common mechanics tools and their uses
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    Remember!
    Tools can harm us. Be very careful while at the workshop. Do not hurt
    yourself or others while using tools.
    c) Maintenance of mechanics tools
    Find out
    How to maintain mechanics tools.
    Activity 1.3 Repairing and maintaining mechanics tools
    1. Look at the following pictures.
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    2. Discuss what is taking place in the above pictures.j
    Some ways of maintaining mechanics tools are:
    • Cleaning
    • Oiling /Greasing
    • Repairing
    • Keeping the tools in a clean, dry and safe
    place.
    • Keeping tools in toolbox after use.
    • Using tools for the purpose they are made
    for.
    Work to do
    The maintenance practices mentioned above do not apply to all
    mechanics tools. Come up with a table on which maintenance practice
    applies to which tool.
    d) Storage of mechanics tools
    Find out
    How to store mechanics tools correctly. Write short notes and
    compare with your friend’s findings.
    Activity 1.4 Storing of mechanics tools
    1. Look at the following picture.
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    2. Discuss what is being done in the picture above.
    Before storage, mechanics tools should first be thoroughly cleaned, dried
    using a clean piece of cloth then stored either in a cool and dry place or
    in a toolbox as shown below.
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    e) Dangers when using mechanics tools
    Find out
    The dangers when using mechanics tools.
    Activity 1. 5 Identifying dangers when using mechanical
    tools
    1. Look at the following picture
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    2. Describe the danger shown above in the picture.
    Some dangers that we face while working in a mechanics workshop
    include:
    • Being hit by moving objects.
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    working with mechanics tools
    • Cutting or hurting ourselves as
    we use the tools.
    • Getting cuts or bruises by objects
    lying in the garage.
    Dangerous chemicals getting
    into our eyes, nose or mouth

    f) Precautions to take when using mechanics tools
    Activity 1.6 Precautions to take when using mechanics
    tools
    1. Look at the following picture.
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    2. Describe how you can dress appropriately when working in a garage
    to avoid accidents.
    To avoid the dangers associated with use of mechanics tools, we should
    always:
    • Keep mechanics tools safely and properly after use.
    • Wear protective clothing such as overall, mouth masks, gloves,
    gumboots among others to protect us as we work.
    • Use tools carefully and for the right purpose to avoid injury.
    • Avoid directing chemicals to other workshop users.

    Work to do

    Find out other dangers related to working in a mechanics workshop
    apart from the ones above. How can we avoid them? Come up with
    a table like this.
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    Remember!
    Always buy original tools. Counterfeits may be cheap but break down
    very quickly. In the long run, they are more expensive!

    Self –Test 1.1

    1. What do you think would happen if there were no mechanics to repair or fix broken down machines?
    2. Which mechanic tools is used for:
    a) Replacing a car Tyre?
    b) Unscrewing nuts?
    3. Name the mechanics tools below.
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           (a)                                                       (b)                                           (c)
    4. What are some of the dangers that we face in a mechanics
    workshop?
    5. Name three protective clothing that a mechanic should put on?
    1.2 Blacksmith tools
    Find out
    1. Who a blacksmith is.
    2. What tools a blacksmith uses.
    3. Where a blacksmith works.
    4. What will happen if we did not have blacksmiths in our society.
    5. How to use blacksmith tools.
    a) Common blacksmith tools
    Activity 1. 7     Identifying blacksmith tools
    1. Visit a nearby blacksmith workshop. Look at the people working
    in the workshop. What tools are they using? Which of these tools do you know?
    Blacksmiths are people who make or repair tools made of iron by hand.
    They heat metals until red-hot then they beat them with a blacksmith hammer into desired shapes.
    Table 1.3: Common black smith tools
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    N.B Some tools that we use at home that are made by blacksmiths
    include knives, axes, machetes, saucepans among others.
    b) Uses of blacksmith tools
    Find out
    The specific uses of blacksmith tools.
    Activity 1. 8 Practicing the use of blacksmith tools
    1. Visit a blacksmith workshop.

    2. Observe the tools being used and how the blacksmith uses them.
    3. Try using the blacksmith tools yourself.

    Table 1.4 Common blacksmith tools and their uses

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    c) Maintenance of blacksmith tools

    Activity 1.9 Practicing maintenance of blacksmith tools
    1. Apply oil on the anvil and blacksmith hammer. What is the
    importance of this practice?
    2. Leave a blacksmith hammer outside the house over night. Do
    you notice anything on the blacksmith hammer after two days?
    Some ways of maintaining blacksmith tools are:
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    • Cleaning thoroughly after use.
    • Tools with metallic parts such as anvil, hammer
    and tong should be oiled or greased.
    • Keeping in a dry place to avoid rusting.
    d) Storage of blacksmith tools
    Find out
    1. Correct practice on storage of blacksmith tools.
    2. Conditions needed for proper storage of blacksmith tools.

    Activity 1.10 Storage of blacksmith tools

    1. Look at the following picture.

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    2. Describe how blacksmith tools are stored in the picture above.

    Before storage blacksmith tools should be cleaned, wiped dry and stored

    in a toolbox or hanged on a wall.

    e) Identifying dangers when using blacksmith tools
    Activity 1.11      Identifying dangers of blacksmith tools
    1. Look at the following illustration.
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    2. Describe the danger shown in the picture above.

    Some dangers that we face while working in a blacksmith workshop

    include:
    • Being hit by moving objects.
    • Cutting or hurting ourselves as we use the tools.
    • Getting bruises by objects lying in the workshop.
    • Dangerous metal particles getting into our eyes, nose or mouth
    as we work.

    • Getting burnt by fire or hot metals.

    f) Precautions to take when using blacksmith tools
    Activity 1.12 Protecting the body when using
    blacksmith blacksmith tools
    1. Look at the following picture.
    h
    2. Describe how you can dress appropriately in a blacksmith workshop
    to avoid accidents.

    To avoid dangers associated with use of blacksmith tools, we should

    always:
    • Keep blacksmith tools safely and properly after use.
    • Wear protective clothing such as overall, mouth masks, gloves,
    and gumboots to protect us as we work.
    • Use tools carefully to avoid injury.
    In general, blacksmiths need to protect themselves against fire or

    hot metals which may cause burns or scalds to their skins as they work.

    Work to do
    Find out other dangers related to working in a blacksmith workshop
    apart from the ones above. How can we avoid them? Come up with

    a table like this.

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    Self –Test 1.2
    1. Mention five main tools used by blacksmiths.
    2. Which tools do you use at home that are made by blacksmiths?
    3. Why should we wear googles when dealing with blacksmiths

    tools?

                                         UNIT TEST 1

    1. Why are these people important in our society?
    a) Mechanic
    b) Blacksmith
    2. Match the tool with its use in the table below using a line.
    8

    4

    3. Mutoni was heard by a friend complaining how dirty a blacksmith
    job is. What advice can you give Mutoni?
    4. Why do you think it is necessary for mechanics and blacksmiths to
    put on protective clothes?

    5. What is wrong with the picture below?

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    6. Give at least 3 important tools that we use in our homes that are
    produced by blacksmiths.
    7. Bring some blacksmith tools such as anvil, tong and pincers to

    school. Practice maintaining them. What did you do to each tool?

    • MODEL QUESTIONS File Uploaded 26/04/20, 12:48
UNIT 2:Simple machines