What is a imperial scale for machine shops?

this is littlebit_cr8zy from canada and i need some help....





i need to know what a imperial scale is and how to use it. my teacher does not help his students and it isn't even a test so i have no body to help me





signed


littlebit_cr8zy

What is a imperial scale for machine shops?
The U K (Imperial) System of Measurements


Length Area


12 inches = 1 foot 144 sq. inches = 1 square foot


3 feet = 1 yard 9 sq. feet = 1 square yard


22 yards = 1 chain4840 sq. yards = 1 acre


10 chains = 1 furlong 640 acres = 1 square mile


8 furlongs = 1 mile


5280 feet = 1 mile


1760 yards = 1 mileCapacity


20 fluid ounces = 1 pint


Volume 4 gills = 1 pint


1728 cu. inches = 1 cubic foot 2 pints = 1 quart


27 cu. feet = 1 cubic yard 4 quarts = 1 gallon (8 pints)





Mass (Avoirdupois)


437.5 grains = 1 ounceTroy Weights


16 ounces = 1 pound (7000 grains)24 grains = 1 pennyweight


14 pounds = 1 stone20 pennyweights = 1 ounce (480 grains)


8 stones = 1 hundredweight [cwt]12 ounces = 1 pound (5760 grains)


20 cwt = 1 ton (2240 pounds)





Apothecaries' Measures Apothecaries' Weights


20 minims = 1 fl.scruple20 grains = 1 scruple


3 fl.scruples = 1 fl.drachm 3 scruples = 1 drachm


8 fl.drachms = 1 fl.ounce 8 drachms = 1 ounce (480 grains)


20 fl.ounces = 1 pint12 ounces = 1 pound (5760 grains)











The old Imperial (now UK) system was originally defined by three standard measures - the yard, the pound and the gallon which were held in London. They are now defined by reference to the S I measures of the metre, the kilogram and the litre. These equivalent measures are exact.





1 yard = 0.9144 metres - same in US


1 pound = 0.453 592 37 kilograms - same in US


1 gallon = 4.546 09 litres - different in US





Note particularly that the UK gallon is a different size to the US gallon so that NO liquid measures of the same name are the same size in the UK and US systems.


Also that the ton(UK) is 2240 pounds while a ton(US) is 2000 pounds. These are also referred to as a long ton and short ton respectively.

shoe buckles