1. General questions. Please write complete sentences.
a) Name some of the advantages of high-performance plastics.
b) Name some of the uses of biomaterials.
c) What processes do we use milling machines for?
d) What is the process called in which metals are bonded together by melting a separate metal onto the heated joint?
e) What do we use a chisel for?
f) Why did early microscopists only see distorted images?
2. Please put the verbs in brackets into the Third Conditional form.
a) Soldering (be) the best method to use if we had had any lead in the garage.
b) The factory (choose) engraving rather than etching if they had understood the
technology better.
c) Many things would not have been discovered if the microscope (not be) invented.
d) Renault would have lost a lot of money if they (not discover) the defect very
quickly.
e) If the centre lathe had not been so versatile, we (not invested) £50,000 in it.
3. Translate the following text into English.
A. van Leeuwenhoek war ein holländischer Wissenschaftler und einer der Pioniere der Mikroskopie im späten 17. Jahrhundert. Er machte seine eigenen einfachen Mikroskope, die nur eine einzige Linse hatten und tragbar waren. Er fertigte viele Zeichnungen von dem, was er sah, an und entdeckte Bakterien,
obwohl er nicht wusste, was sie waren.
4. Indirect speech.
Mr Garland, spokesman of Bowthorpe Pharmaceuticals, at a press conference:
“We are most pleased to announce that we have lowered our output of sulphur dioxide this year. We are producing 20 % less sulphur dioxide than last year.
Last month we installed new environmentally-friendly equipment and we will do more: next year we will spend 2 % of our profits on the protection of the environment.”
You are the reporter who has to write a precise report on Mr Garland’s announcement. Start as follows:
Mr Garland, spokesman of B.P., announced yesterday that they were most pleased …
5. Please read the text and answer the following questions in complete sentences.
Plastics. Melting and setting
Plastics may react to heat in one of two ways. Some simply soften and melt, and return to a solid state when they cool. Others remain quite rigid. The heatsoftening type of plastic is called a thermoplastic, the heat-resistant type a thermosetting plastic. In a thermoplastic the long chain molecules are free to move
in relation to one another. But in a thermosetting plastic the long chains are cross-linked to form a rigid network.
The most common way of making plastic products is by moulding. In injection moulding thermoplastic chips are first heated until they melt, and then the liquid is forced into a water-cooled mould under pressure. This method is ideally
suited to mass-production techniques and is very widely used. In blow moulding air is blown into a blob of molten plastic inside a hollow mould, forcing the plastic against the walls of the moul
a) “The plastic is rigid.” What does this mean?
b) In blow moulding what happens to the air?
c) Thermoplastic is …
d) How do we normally make plastics?
e) What is the best method of making plastic for mass production?
6. You have bought a new band saw but it doesn’t work. Write a short letter of complaint to the manufacturer Fox & Son Ltd., Bull Ring, Birmingham B5 7LX.
Write approx. 100 words, including the sender’s address and the date.
2.00
2.00
;)
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