How would you test for a restricted exhaust?
What will be an ideal response?
To test for a restricted exhaust, raise the engine rpm quickly to 2,000 to cause a vacuum reading that is momentarily low. Then release the throttle quickly. Vacuum should return smoothly and quickly to higher-than-normal levels. A slow, hesitating return usually indicates a restriction.
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Why are vertical suction risers often smaller than the horizontal runs on the same suction line?
A) The risers are sized smaller to increase the pressure drop for improved control. B) The risers are sized smaller to minimize pressure drop. C) The risers are sized smaller to maintain a minimum velocity to lift the oil. D) The risers are sized smaller to minimize noise.
If an inductor, resistor and switch are connected in series to a 12 V battery, what is the magnitude of the inductor's voltage at the instant that the switch is closed?
A) 4 V B) 0 V C) 12 V D) 6 V
?What optical property represents the percent of solar radiation striking a material that passes through the material?
A. ?transparency B. ?transmissivity C. ?conductivity D. ?absorptivity
The subsequent problems deal with the circuit below
If A=1, B=1, and C=1, what is Z?
A. 0 B. uncertain C. 1