3. Units of Measurement

Linear measure

Mariners’ measure

12 inches

1 foot

6 feet

1 fathom

3 feet

1 yard

3 nautical miles

1 league

5.5 yards

1 rod

Liquid measure

Square measure

4 gills

1 pint

144 square inches

1 square foot

2 pints

1 quart

9 square feet

1 square yard

4 quarts

1 gallon

30 1 / 4 square yards

1 square rod

31.5 gallons

1 barrel

What is being measured

British Imperial System

SI system

power

hp(horsepower)

kW( киловатт)

лошадинаясила

1 kw =1,36 hp

torque

lb-ft ( pound-foot)a unit of torque

Nm (Ньютон- метр)

фунто – фут

1 kN/m=68,5 lb-ft

единица измерения крутящего момента

frequency of rotation

rpm (revolutions per minute)

radian per second

( rad /s)

( радианвсекунду)

число оборотов в минуту

1 radpersecond = 9.55 rpm

pressure

psi (pounds per square inch)

bar (бар) = 100 kPa

( килопаскаль)

давление в фунтах на квадратный дюйм- давление в одну атмосферу

1bar =14,5 psi

length

Mi (mile)

Km ( километр)

единицадлины, равная 1.609 км

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offers

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