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86.
The diagram below illustrates how a simple water filter is constructed and how it
functions to produce clean drinking water. Write a report for a university lecturer
describing the diagram below.
The given diagram shows the process of producing clean drinking water by a water filter. It
can be seen that there are numerous steps in the process from the initial impure water to the
final potable water.
In the first step, impure water is put into a metal (iron or steel) container with a wooden top.
In the metal container there are three filtering layers, namely sand, charcoal and gravel, with
sand at the top and gravel at the bottom.
In the bottom part,
the water,
which is filtered
through the three layers, is stored temporarily.
An angled metal pipe is there which has the lower opening in the bottom part of the water
filter tank. The upper part of the pipe comes out from the upper part and is linked to another
closed metal tank. The filtered water from the first tank is
brought into the second tank,
which is at a lower level than the first tank. There is a tap attached to the bottom part of the
tank, through which the clean drinking water can be taken out for drinking.
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87.
The diagram below shows the stages of processing cocoa beans. Write a report for a
university lecturer describing the process below.
The given flow chart illustrates how cocoa beans are processed to obtain different products.
It can be clearly seen that there are three stages in the process, from the initial whole beans to
the final products in the market.
In the first stage, the whole beans are picked from the cocoa tree. After being picked, their
outer shells are removed and they are dried for the next stage. Stage 2
consists of many
steps. Firstly, the dried beans are pressed. Some of these pressed beans are further pressed to
make cocoa cake, whereas the rest are refined to make industrial chocolate to which sugar is
added.
In
the third and final stage, the cocoa cake is ground to make
cocoa powder and liquor is
also obtained. The cocoa powder is sent to the market to be used by the consumer, whereas
the cocoa liquor is used in the industry to make cakes and drinks. The industrial chocolate is
sent for final processing after which the finished chocolate products are finally consumed by
consumers.
Overall, there are three stages in the process of making different products from cocoa beans.
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