DIMENSIONS OF CIRCLES PROFESSIONAL ENGLISH IN USE FOR ENGINEERING

 

PROFESSIONAL ENGLISH IN USE FOR ENGINEERING UNIT 6. DIMENSIONS OF CIRCLES

 

A Key dimensions of circles An engineer is giving a training course to a group of technical sales staff who work for a tyre manufacturer. During the talk, she mentions a number of dimensions relating to circles. B Pipe dimensions Specific terms are used to describe the circular dimensions of pipes. The width of the inside of a pipe is called the inside diameter (ID). It can also be called the bore. The outside width is called the outside diameter (OD). When pipes are laid horizontally, the top of the outside of the pipe is called the crown, and the bottom of the inside of the pipe is called the invert.   EXERCISES 6.1 Complete the notes, made by a salesperson attending the engineer’s talk, using the words in the box to help you. arc circular constant deformed radius chord circumference curved diameter   6.2 Find words and expressions in B opposite with the following meanings. One question has two possible answers. 1. the highest point of a horizontal pipe 2. the lower point of the inside of a horizontal pipe 6.3 Change one word in each of the sentences below to correct them. Look at A and B opposite to help you. 1. The distance travelled by the vehicle each time its wheels turn completely is equal to the radius of one of its tyres. 2. The diameter of the tyre is measured from the centre of the wheel to the outside edge of the tyre.

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