is greatly decreased by poor surface conditions
remains same irrespective of surface conditions
depends mainly on core composition
is dependent upon yield strength of material
increases the fatigue strength
decreases the fatigue strength
has no influence on fatigue strength
alone has no influence on fatigue strength
same
higher
lower
depends on other factors
acts when external load is applied
becomes zero when external load is removed
is independent of external loads
is always harmful
best method
extremely hazardous
has no effect as regards fatigue strength
cheapest method