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1.1Review the WASA resource map FIGURE 1 below, and answer the questions that follow. FIGURE 1 Source: Wind Atlas for South Africa (WASA\SANEDI (wasaproject.info\
1.1.1List the FOUR regions that are the most favourable for wind energy projects in South Africa. (4\
1.1.2Motivate why you have identified the regions referred to in
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1.2Unlike other conventional fossil fuel technologies, over 90% of the total cost of wind turbine projects is related to
1.3The president said through its Hydrogen South Africa Strategy, government and its partners have successfully deployed hydrogen fuel cells to provide electricity in schools and to field hospitals established as part of the
1.3.1Explain why it may be considered a worthwhile investment for South Africa to participate in the fuel cell industry. Your answer must highlight the competitive advantage South Africa has compared to other countries.
1.3.2Name FIVE advantages of ydrogen and uel cell technology. (5\
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2.1Indicate whether the following statements are TRUE or FALSE by writing only 'True' or 'False' next to the question number
2.1.5\in the ANSWER BOOK
2.1.1Warm air is more dense than cold air and therefore sink down.
2.1.2As air rises, it creates low atmospheric (air\ressure.
2.1.3Wind, or air in motion, often moves from areas where it is colder to areas where it is warmer. 12041044 Copyright reserved
2.1.4Wind blows faster when the distance between high and low pressure zones are large.
2.1.5Wind is caused by solar convection that is absorbed differentially by the arth s surface and converted through radiation processes due to temperature and air
2.2FIGURE 2 below is an illustration of an offshore wind farm. Study FIGURE 2 and answer the questions that follow. Source: https://us.orsted.com/wind
2.2.1Describe the energy conversion (or transformation\rocess. (3\
2.2.2The design of the rotor blades plays an important role in the efficiency of one of the energy conversion elements. Name the TWO forces at work at the rotor blades. (2\
2.3Explain why fuel cells provide interesting opportunities for eMobility concepts. (7\ 12041044 Copyright reserved
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3.1With respect to azards related to wind turbine technologies, match description from COLUMN B with
3.1.1
3.1.6\in the ANSWER BOOK. COLUMN A COLUMN B
3.1.6Lockout/ agout Electrical hazards Safety checklist Working at heights Chemical hazards Falling hazards
3.2You are supervising a group of artisans who are required to install medium sized wind turbines. Because they are not familiar with working at heights, they are all nervous and therefore require assurance t
3.3Give THREE aspects how employees can be involved in health and safety processes and procedures. (3\ [15] 1204104415
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4.1FIGURE 4 below contains an image of a lead acid battery and an illustration of the chemical behaviour during charging. Study FIGURE 4 and answer the questions
4.1.1Explain the chemical reaction that takes place during charging. (4\
4.1.2List SEVEN requirements for effective battery enclosure and maintenance. (7\
4.2An experiment is conducted on an IKS H Junior trainer to measure the efficiency of the electrolyser. The potential difference and hydrogen volume are given at two current settings, at the respective time intervals.
4.2.2in your answer b ook. TABLE 1: Measurement data I (mA\ V (V\ T (mins\ start vol.
1.8500 23 15
46.8(4.2.1\ (4.2.2\ 500 175.5 J 240J 73,12% (6\ (12041044\