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The diagrams below give information about the


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The diagrams below give information about the 
manufacture of frozen fish pies. 
Summarise the information by selecting and reporting the 
main features, and make comparisons where relevan 
 
 
 
 


58 
This diagram shows that there are a number of processes 
involved in the commercial production of frozen fish pies. 
The main ingredients consist of fresh salmon, peas and 
sauce, with sliced potatoes, and they are prepared 
separately. The potatoes, which may have been delivered 
up to a month in advance, are cleaned, peeled and cut into 
slices. The slices are boiled and then chilled before being 
stored until needed. The preparation of the fish is more 
labour intensive than the preparation of the potatoes. 
Within twelve hours of being delivered to the factory, the 
fresh fish is cooked by being steamed with lemon juice and 
salt. Then the skin and bones are removed by hand and 
disposed of, before a visual inspection takes place. 
After this, the pies are assembled in microwaveable 
containers Peas and sauce, which have also been prepared, 
are added to the fish and then the pie is covered with a 
layer of cooked potato slices. The pies are then wrapped 
and frozen. At this point they are ready for dispatch, or they 
may be stored at the factory before being dispatched. 
 
 


59 
he diagrams show a structure that is used to generate 
electricity from wave power. 
Summarise the information by selecting and reporting the 
main features, and make comparisons where relevant. 


60 
The two diagrams show how electricity can be generated 
from the rise and fall of water caused by sea waves. 
The process involves a structure which is mounted on the 
side of a cliff or sea wall. This structure consists of a large 
chamber. One end is open to the sea, and the other leads 
into a vertical column, which is open to the atmosphere. A 
turbine is installed inside this column and this is used to 
generate the electricity in two phases. 
The first diagram indicates that when a wave approaches 
the device, water is forced into the chamber, applying 
pressure on the air within the column. This air escapes to 
atmosphere through the turbine, thereby producing 
electricity. 
The second diagram illustrates the next part of the process 
when wave retreats. As the water level falls, the air from 
outside the column is sucked back in through the turbine. 
As a result, electricity continues to be generated. The 
turbine rotates only in one direction, regardless of the 
direction of the air flow. 
In conclusion, we can see that this structure is useful as 
electricity is generated in both phases: entering and 
retreating of water. 

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