Following cleaning in a spray or soal tank, oil galleries must be cleaned with a brush after the plugs sealing the ends of the galleries are removed. Why is this step necessary?
What will be an ideal response?
Over many miles of driving under various maintenance conditions, grime builds up in the oil galleries. This material is loosened during the cleaning process. If it is not physically removed, it will end up ruining new engine bearings and possibly more.
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Answer the following statement true (T) or false (F)
For dry fertilizer application to a tree, how deep should the holes be drilled?
a. 1 to 2 feet c. 4 to 6 inches b. 2 to 4 feet d. 6 to 8 inches
Top-down hierarchical design considers every project detail first
Indicate whether the statement is true or false
The second-order AR filter has feedback coefficients a1=0.9 and a2=0.5 (b0 = 1). When xi = sin(2?i/8), the value of y2 = ________(x.xx).
Analysis: x0=sin(0)=0, x1=sin(?/4)=0.707, x2=sin(?/2)=1. yi = 0.9yi-1 +0.5yi-2 + xi. With zero initial conditions: y0=x0 =1 y1=0.9y0+x1=0.9(1) + 0.707 = 1.607 y2=0.9y1+0.5y0+x2 = 0.9(1.607) + 0.5(1)+ 1 = 2.9463 = 2.95