# BTEC First Engineering

## Michael Casey, Anthony King, Steve Wallis, Neil Godfrey, Anthony Carey

Language: English

Pages: 408

ISBN: 1444110527

Format: PDF / Kindle (mobi) / ePub

A visually engaging new textbook for BTEC First Engineering.

brackets: 12 ϫ 15 ϭ 180 BODMAS 180 ϫ 10 ϭ 1800 BODMAS Then multiply by the 10: Example 2: 8 ϩ 10(15 ϫ 10) – 9 First work out the brackets: 15 ϫ 10 ϭ 150 BODMAS Mathematics for engineering technicians Then multiply by the 10 (note that when a number is directly next to the brackets it means multiply – it is a kind of shorthand, which is why the ‘×’ symbol is not shown): 150 ϫ 10 ϭ 1500 BODMAS 1500 ϩ 8 ϭ 1508 BODMAS 1508 – 9 ϭ 1499 BODMAS Now add the 8: And finally subtract the 9:

include the sheet steel to process automotive body work, the volume of polymer used to make electrical casings, the area and volume of pipes used in estimating flow in petrochemical operations, and the volume of ingredients used in food processing or pharmaceutical manufacturing. Other examples include the design of a new factory layout or the estimation of an area potentially used for engineering office space in a new plant. You are highly likely to have covered this material at school, so

Complete Table 4.6 by filling in the blanks. N/m2 Pa PSI Bar Example 1 1 0.000145 0.00001 Car tyre 200,000 3,623 Diver air cylinder Pressure washer 29.01 10,342,135 250 1,500 Table 4.6 Units of pressure Activity Give a simple description of the following terms. Make sure you include the standard unit. An example is given for the first term. 1. Mass A measure of the amount of substance (or matter) a material possesses. Mass is measured in the kilogram. 2. Gravitational

4.7 on page 152, 50 km/hr ϫ 0.27 ϭ 13.5 m/s change in velocity acceleration ϭ _________________ time taken 13.5 ϭ ____ seconds 1.5 ϭ 9 m/s2 Note: the units for acceleration are m/s2; in other words, metres per second, per second. To explain the units, it means if the Bugatti had an acceleration of 9 m/s2, then it would be travelling 9 m/s in the first second, 18 m/s by the second second and 27 m/s by the third second. To convert back to where we started (in km/hr), we again use Table 4.7 to

not magnetic but touch one with a magnet and it will pick the other nails up. Figure 8.9 Permanent magnets are usually made from iron, nickel and cobalt Activity Magnets are used for many common household and personal products. Make a list of five common applications of magnets and then check your answers on the internet. Chemical and durability properties Resistance to corrosion If a material has a low resistance to chemical attack, then it can easily corrode. Some materials have a natural