Прочитайте текст. Naval architects are engineers who design and supervise construction of ships. Shi...: ответ на тест 933231 - Английский язык

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Naval architects are engineers who design and supervise construction of ships. Ships must be designed and built so that they are safe, stable, strong, and fast enough to perform the type of work intended for them. A naval architect must be familiar with the variety of modern shipbuilding.
Marine engineering is a specialized branch of mechanical engineering devoted to the design and operation of systems, both mechanical and electrical, needed to propel a ship. Engineers in this field develop diesel engines and steam turbines that provide enough power to move the ship at the required speed.
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A naval architect must be familiar with …

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Engineering is a very practical activity. It is the process of applying the latest achievements of science and technology into practice.
There are a lot of branches in engineering. Mechanical engineers are experts in the design and manufacture of tools and machines. Mechanical engineering has marine, automobile, aeronautical, heating and ventilating branches.
Electrical engineering deals with producing and applying electricity in various fields of national economy. It has the following branches: electrical installation, electrical generation, lighting, etc.
Components and equipment for computing and communicating are the products of electronic engineering. Civil engineering deals with constructing bridges, roads and airports.

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Soldering is recommended for making connections on electrical circuits, but it should never be used where strong joints are required. For permanent joints between two dissimilar materials like nylon and metal, it is advisable to use adhesives. For temporary jobs, like fitting a maintenance cover, screw-fastening should always be used. Riveting is recommended for permanent sheet-metal joints such as outer casing fitting. Although welding should always be used for steel support girders, brazing can be used for medium-sized joints where strength is required; for example the joint between the base and body of a hydraulic jack.
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Screw-fastening should always be used for …

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Cast iron should be used for components which must be strong in compression. It is recommended for machine beds and frames. Wrought iron is recommended for components where tensile strength is required; for example, crane hooks and railway couplings. Mild steel should be used for components which must be strong in shear; therefore it is recommended for rivets and bolts. Medium carbon steel is recommended for components where impact strength is required; for example, axles and hammer heads.
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Wrought iron is recommended for …

Заполните пропуски в инструкции следующими словами:
1) These ear protectors must be carried everywhere in the 1_______ hangar.
2) These 2_______ must be lubricated every day.
3) Drivers are required to check the 3_______, lights, tyres, and water before a long car journey.
4) Apprentices must always wear 4_______ in the workshop.

Заполните пропуски в инструкции следующими словами:
1) All 1________ must be reported to your supervisor.
2) You must not 2_______ at a height without a harness and a lifeline.
3) Always check the 3_______ is on the machine before switching it on.
4) Never eat or drink while operating this 4_______.