A work center was available for work 80 hours, produced 74 standard hours of work and actually worked 67 hours. What is the efficiency of the work center?
A) 110.4% B) 119.4% C) 108.1% D) 92.5%
A
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The term field-fabricated elbow jacket refers to elbow jacket _____.
a. laid out and made by the insulation mechanic b. made out of a single piece of sheet metal c. pressed into shape from sheet metal d. obtained from distributors and installed in the field
Technician A says that glycol-based brake fluid causes the seals to swell slightly. Technician B says the DOT 5 (silicone-based) brake fluid causes rubber seals to swell slightly. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B
Which best describes the reason logarithmic signal compression is more accurate than linear signal compression?
A) linear compression cannot replicate extremely small signals B) in logarithmic compression, higher voltages are reduced more than small voltages C) logarithmic amplifiers deal with large and small signals equally D) phase shift affects linear amplifiers more than logarithmic amplifiers
For the circuit shown in Figure P5.41, assume that switches S1 and S2 have been held open and closed, respectively, for a long time prior to t = 0. Then, simultaneously at t = 0, S1 closes and S2 opens. Also
assume
R1 = 5?, R2 = 4?, R3 = 3?, R4 = 6?, and
C1 = C2 = 4F.
a. Find the capacitor voltage vC at t = 0+.
b. Find the time constant ? for t > 0.
c. Find vC for all time and sketch the function.
d. Evaluate the ratio vC to vC (?) at each of the following times: t = 0, ?, 2?, 5?, 10? .
