To regulate EGR more accurately, some EGR systems use ____________________, in the same way as fuel injection systems, to rapidly cycle an EGR vacuum control solenoid on and off.
Fill in the blank(s) with the appropriate word(s).
pulse width modulation
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The friability of glass foam blocks requires which of the listed actions?
a. Limiting the block stack height b. Use of PPE for skin and eye protection c. Minimizing temperature changes d. Coating it in mastic or adhesive
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When holes are to be located on a circle, the ____ of the circle should be given so as to fix the exact center of each hole.
A. radius B. diameter C. arch D. circumference
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Consider the parallel RLC circuit of Fig. 16.86. Find v(t) and i(t) given that v(0) = 7.5 and i(0) = –3 A.
 figure 1.png)
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If the refrigerant condensing saturation temperature is 100°F at the start of the process, what would the entering water temperature be?
A) 110°F B) 20°F C) 80°F D) 50°F
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