Because a(n) ____ has its outer orbit filled or almost filled with valence electrons, they are tightly held in orbit and not easily given up for current flow.
a. semiconductor
b. insulator
c. conductor
d. transistor
b. insulator
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A source produces symbols A, B, and C having probabilities P[A] = 0.9, P[B] = 0.07, P[C] = 0.02, P[D] = 0.01. The source entropy equals _____ (x.xx) bits/symbol.
Fill in the blank(s) with the appropriate word(s).
Flux is a term given to any ____ used to clean metal
a. chemical c. bead b. energy d. tool
The cost characteristics of a CO testing machine that was purchased 5 years ago for $100,000 are shown below. The equation to determine the AW of retaining the tester one more year and then replacing it is: (choose one)
(a) AW = ?15,000(A/P,i,1) ? 54,000 + 10,000(A/F,i,1)
(b) AW = ?100,000(A/P,i,6) ? 54,000 + 10,000(A/F,i,6)
(c) AW = ?60,000(A/P,i,1) ? 42,000 + 40,000(A/F,i,1)
(d ) AW = ?100,000(A/P,i,5) ? 42,000 + 15,000(A/F,i,5)
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Valve guide renewing is being discussed. Technician A says that the valve guide reamer is used first during any process. Technician B says that the three common methods for renewing the guide are knurling, inserts, and welding. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B