MEASUREMENT UNITS

Angstrom : For measuring length of light waves

Barrel : For measuring liquids. One barrel is equal to

31½ gallons or 7,326.5 cubic inches

Cable: For measuring length of cables. It is about 183

m. in length

Carat : Used for measuring precious stones. It is also

a measure for the purity of gold alloy

Fathom : It is used for measuring depth of water. One

fathom is equal to 4 inches

Knot: For measuring speed of ships

Horse Power : Used for measuring the power of petrol

or steam engine

Light Year : A light year is the distance light travels

in one year at a speed of 2,97,600 km per second

Nautical Mile : A unit of distance used in navigation

- one minute of longitude measured along the equator.

A Nautical Mile is approximately equal to 1853 metres

Ohm : The unit of electrical resistance of a conductor

Quintal : Metric measure of weight, 100 kilograms = 1

Quintal.