Summary FE exam Prep Fundamental Units

FE exam Prep Fundamental Units
Common units of mass (both English and SI) - Gram, Pound, Kilogram, and Slug



Primary unit for mass (SI) - Kilograms (kg)



Primary unit for force(SI) - Newtons (N)



Primary unit for mass (Eng) - Pound-mass (lbm)



Primary unit for Force (Eng) - Pound-force (lbf)



Relationship between mass and weight - W=mg where g is the gravitational
constant; mass remains constant and is an inherent property of the item, weight is
dependent upon the value of g at a given location



Gravitational constant on earth (English and SI) - g = 32.2 ft/sec²; 9.81m/s²



Note on consistent and inconsistent units - Using consistent units is preferable but
may not be needed. When inconsistency arises, simply be sure to note when
conversion factors are needed.

, FE exam Prep Fundamental Units
Definition of weight - W= g/gc; the force exerted on an object given it position in a
gravitational field



Specific weight(weight density) - γ=W/V where v is volume



length (SI) - meter (m)



mass (SI) - kilogram (kg)



time(SI) - second (s)



electric current (SI) - Amp (A)



temperature (SI) - Kelvin (K)



amount of substance (SI) - mole (mol)



luminous intensity (SI) - candela (cd)