Margin pressure is used to:
a. Ensure the pump flow output will always be slightly greater than the minimumrequired
b. Replace the main relief pressure setting
c. Keep system pressure at 0 psi when no flow is required d. Match pump output to the lowest circuit pressure demand
A
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? Identify and state the historical significance of General Andrew Jackson.
What will be an ideal response?
The crash rate on a heavily-traveled two-lane rural highway is abnormally high. The corridor is 14 miles long with an ADT of 34,000. An investigation has determined that head-on collisions are most common, with an RMVMT of 4.5, and are caused by vehicles attempting to pass. Determine an appropriate countermeasure and calculate the estimated yearly reduction in total crashes.
What will be an ideal response?
To minimize air noise, the face velocity of the air leaving a supply register should be kept:
A) Under 600 ft per minute. B) Over 600 ft per minute. C) Over 1,000 ft per minute. D) Under 1,000 ft per minute.
Technician A says that the ECT and IAT sensors can be tested visually, as well as by using a digital multimeter or a scan tool. Technician B says that the ECT sensor is a high-authority sensor at engine startup and is used for open-loop control, as well as idle speed. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician