Equivalence Between Units - Imperial And Si Systems; Prefixes Of Technical Units - MASSEY FERGUSON MF400Xtra Workshop Manual

2. Equivalence between units - Imperial and SI systems

Quantities
Distance
Area
Volume
Mass
Specific mass
Specific volume
Power
Speed
Speed
Torque
Ideal pressure
Flow rate
Time
Energy
Power

3. Prefixes of technical units

To form multiples or sub-multiples of a base unit,

simply add the desired prefix/symbol in front of
it.
To multiply the unit volt by 1000: kilo + volt =
kilovolt and k + V = kV.
To divide the unit volt by 1000: milli + volt
= millivolt and m + V = mV.
These prefixes can also be used with non-SI

u n i
millibar, kilocalorie, megaton, hectoliter, etc
For historical reasons, the name of the basic unit

of mass has a prefix: kilogram. For this reason,
multiples and submultiples of this unit are
formed using the gram.
MF 400 Xtra
Units
I S I
MPERIAL YSTEM NTERNATIONAL SYSTEM
foot m
foot³ m²
foot³ m³
lb kg
lb/foot³ kg/m³
foot³/lb m³/kg
lbf newton - N
foot/s m/s
grad/s rad/s
lbf.foot N.m
lbf/foot² N/m² (or Pa
foot³/s m³/s
s s
lbf.foot J
Btu W
t s
- SI P
RACTICAL OR DERIVED UNITS
mm, cm, km
mm², cm², km², ha, alqueire...
mm³, cm³, l, gallon
g
g/cm³, g/l, kg/l
cm³/g, l/kg
kgf, dyne
km/h, m/min
rpm, rps
m.kgf, cm.kgf
kgf/m², kgf/cm², kgf/mm²
m³/h, l/h, l/min, l/s
min, h
kgf.m
hp, cv
:
Introduction
01
01A01-21