Briefly describe the three properties of rainfall that primarily concern highway engineers.
What will be an ideal response?
Highway engineers are primarily concerned with three properties of rainfall:
intensity, duration, and frequency. The rate of fall (typically expressed in inches
per hour) is known as intensity. The length of time for a given intensity is known
as duration. The probable number of years that will elapse before a given
combination of intensity and duration will be repeated is known as frequency.
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Highway driving can result in extra fuel and water dilution in the oil.
Answer the following statement true (T) or false (F)
Wiring schematics have which information about circuits?
A) Wire size B) Wire color C) Circuit number D) All of these
Electro-hydraulic power steering systems use ________
A) A conventional hydraulic power steering gear B) An electric motor to power a hydraulic pump C) An engine-driven hydraulic power steering pump and an electric motor steering gear D) Both A and B
A bi-flow expansion valve:
A) Has both a low flow and a high flow setting. B) Can be used with two different refrigerants. C) Provides flow out of two ports simultaneously, eliminating the need for a refrigerant distributor. D) Is designed to allow refrigerant flow in both directions.