Exhaust gas recirculation (EGR) is generally not needed under any of the following conditions EXCEPT ________
A) Cruise speed B) Wide open throttle (WOT)
C) Idle speed D) Cold engine
A
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To protect against back siphonage in high-hazard situations, hospitals and medical laboratories use special backflow preventers called _____.
a. in-line vacuum breakers b. air-actuated check valves c. dynamic backflow valves d. pressure-differential actuators
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List some symptoms of distemper
What will be an ideal response?
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When is an engine air filter said to function at its best efficiency?
A. brand new B. mid-life C. just before it fails D. when exposed to hostile conditions
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How did the mainstream liberal Protestant churches lose cultural authority in the 1960s? Why were more conservative evangelical Protestants able to take their place?
What will be an ideal response?
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