GENERAL EDUCATION AND TRAINING TECHNOLOGY GRADE 9 ASSESSMENT TASK MARCH ...

GENERAL EDUCATION AND TRAINING TECHNOLOGY

GRADE 9

ASSESSMENT TASK

MARCH 2016

Name School Grade Circuit

: ___________________________________________ : ___________________________________________ : ________________________________________________ :_____________________________________________

TOTAL MARKS :

DURATION

:

50 1 Hour

This question paper consists of 8 pages

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INSTRUCTIONS AND INFORMATION

Read the following instructions carefully and follow them precisely 1. Answer ALL the questions on the question paper. 2. Please check that your paper has 6 questions. 3. Use a blue or black pen to answer the questions 4. Use a pencil to draw all drawings and diagram. 5. Write neatly and legible.

MARCH 2016

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MARCH 2016

QUESTION 1

State whether the following statements are True or False. Write the answer on the space provided next to the question.

1.1 Tension is referred to as pulling force.___________

1.2 Triangulation is used to prevent an object from bending.__________

1.3 Durable materials are affected by acids.______________

1.4 Static force acts on objects that are moving. ____________

1.5 Corrosion cannot be prevented by plating.____________

(5)

[5]

QUESTION 2 Match the most appropriate definition in column B with the property of material in column A. Write the letter of the correct answer in the answer column.

Column A 1. Stiffness 2. Stability

3. Hardness 4. Corrosion

5. Flexibility

Answer Column B A. The property of a material to bend and return to its original shape B. Chemical process that takes place when a metal is in contact with oxygen. C. Ability of material not to bend or lose shape under pressure. D. Ability of a material to resist change in shape and size in wet or dry condition. E. The ability of a material to resist scratches, wear and tear, or denting. F. Ability of a material not to be affected by events like fire and earthquake. (5)

[5]

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MARCH 2016

QUESTION 3

Answer the following questions in your own words.

What do you understand by?

3.1 Static force _________________________________________________________________________ _________________________________________________________________________

3.2 Dynamic force _________________________________________________________________________ _________________________________________________________________________

3.3 Even load _________________________________________________________________________ _________________________________________________________________________

3.4 Uneven load

_________________________________________________________________________ _________________________________________________________________________

3.5 Cross-bracing

_________________________________________________________________________ _________________________________________________________________________

(2 x 5 = [10]

QUESTION 4

Read the scenario below to answer the questions that follow.

Rivers provide much needed water for the communities, but sometimes they can also make life difficult for people. During rainy seasons, people from villages on one side of the river struggle to get the other side of the river, if there is no bridge. Many people work on the other side of the river. The doctors, banks and shops that they need to visit are also on the other side.

School children cross this river to get to their schools and elderly have to walk through it once a month to collect grant. Usually they cross the river on foot because the nearest bridge is very far away. But during the rainy seasons, when the river is flooding, it becomes very dangerous. They have seen crocodiles and everyone is scared.

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MARCH 2016

4.1 Write THREE sentences to explain the problem the villagers have.

(3)

_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

4.2 How can you solve the problem?

(2)

_________________________________________________________________________ _________________________________________________________________________

4.3 Write the design brief and TWO any specifications.

(3)

_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

4.4 What type of bridge do you think will be more suitable to solve the problem? Give

reason for your answer.

(2)

_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

QUESTION 5

The diagram in figure 1 on page 8 shows a block in isometric projection. Use the square

grid to draw the front view, top view and left view of the block in first angle orthographic

projection. The arrow indicates the front view of the block.

(10)

QUESTION 6

The diagram in figure 2 on page 8 shows a block in isometric projection. Use the isometric

grid provided to redraw the block in isometric projection, using a scale 2.1

(10)

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