Which of the following statements about electronic ignition modules is correct?
a. electronic...
Engineering, 05.10.2019 12:00 lol15arec001
Which of the following statements about electronic ignition modules is correct?
a. electronic ignition modules are easily damaged by moisture, oil, and dirt.
b. most electronic ignition modules have long life spans and don't require any adjustments.
c. electronic ignition modules are very expensive, so they're usually repaired rather than replaced.
d. because electronic ignition modules contain so many moving parts, they tend to wear out very quickly.
Answers: 3
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Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
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Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
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Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
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