Choose any THREE time periods. In each time period write a paragraph of ten
lines based on your understanding of the differences of the time periods. Locate
the time period in your own context. (15)
QUESTION 2
Read t
...
Choose any THREE time periods. In each time period write a paragraph of ten
lines based on your understanding of the differences of the time periods. Locate
the time period in your own context. (15)
QUESTION 2
Read the Scenario below and answer the questions by completing the table that
follow:
A local municipality placed an advert in the local newspaper for a competition
of local high schools to participate. The competition need some best
investigation ideas to contribute towards the building of a community hall.
QUESTION 3
3.1 Explain the uses of the following gear drives:
3.1.1 bevel gears
3.1.2 internal gears
3.2. In your own view, evaluate how roller chain drives can be used as conveyor
belts. (4)
3.3. Give own analyses (with practical examples) on the circumstances or
conditions in which hydraulic accumulators and bottle jacks are used. (4)
3.4. Explain the nature of hydraulic accumulators and bottle jacks’ application
and biases. (4
QUESTION 4
4.1. An electric circuit consists of the following components:
4.1.1 draw the circuit diagram. (5)
4.1.2 calculate the voltage across R₃ if the applied voltage is 12V. (8)
4.1.3 calculate the current passing R1 and R3. (6)
QUESTION 5
Consider Activities 5.1 and 8.1 in your study guide. Answer the questions in
each case.
ACTIVITY 5.1
(1) Identify and draw any rectangular object in third orthographic angle
projection.(2) Explain in detail the steps followed in question 1.
(3) Draw a bridge from a two-point perspective sharing.
(4) Explain the steps that need to be followed when constructing a two-point
perspective.ACTIVITY 8.1
(1) Investigate and explain the procedure by which mechanical engineers
or motor mechanics fasten engine bolts using a ratchet.
(3) What is the difference between a vice grip and a wrench in terms of
their structure and functions?(4) Why do some technicians use Allen keys instead of self-tapping screws to
fasten joints?
(5) Explain the method by which a micrometer is used to determine the depth or
the size of an object.(6) Describe why engineers or technicians may prefer a Vernier calliper to other
measuring instruments
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