Cambridge ielts 1-15 series reading answers explained

So option A is false.
B. the ease with which the resin could fill the mould 
Keywords: ease, fill, mould 
In paragraph 6, the writer says that “Moulds had to be carefully designed so that the molten Bakelite 
would 
flow evenly and completely into the mould. Sharp corners proved impractical and were thus a
voided, giving rise to the smooth, “streamlined” style popular in the 1930s. 

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+ fill = flow completely into evenly, completely, smooth, streamlined indicate the ease with which the 
resin can fill the mould. 
So the answer is B
C . The facility with which the object could be removed from the mould 
Keywords: removed, mould 
In paragraph 6, the writer states that ” The object could not be designed so that it was locke
d into the 
mould and therefore difficult to extract”, therefore “objects should taper towards the deepest p
art of the mould, and if necessary the product was moulded in separate pieces” –
so that the objects will be easily removed from the mould. 
+ taper toward: progressively narrow or reduce in thickness towards one end 
+ remove = extract 
So the answer is C
D. the limitations of the materials used to manufacture the mould 
Keywords: limitations, materials, manufacture 
Actually the writer only mentions the limitations of shapes/forms of the mould: “The thickness of the 
walls 
of the mould was also crucial: thick walls took longer to cool and harden, a factor which had
to be considered by 
the designer in order to make the most efficient use of machines… Sharp corners proved 
impractical and were thus avoided”. He does not mention the limitations of the materials used to make 
the moulds crucial: very important and of great influence on the design of products. 
=>D is false
E. the fashionable styles of the period 
Keywords: fashionable styles, period 
In paragraph 6, the writer says that: “Sharp corners proved impractical and were thus avoided, giving 
rise to the smooth, „streamlined‟ style popular in the 1930s”. This means that the old styles in the 
1930s are still in use and practical, not the fashionable styles.