What are the two sources of water a highway engineer is primarily concerned with? Briefly describe each.
What will be an ideal response?
The highway engineer is concerned primarily with two sources of water.
The first source, surface water, is precipitation that occurs as rain or snow. Some
of this is absorbed into the soil, and the remainder remains on the surface of the
ground and should be removed from the highway pavement as surface drainage.
The second source, ground water, is that which flows in underground streams;
this is referred to as subsurface drainage. This may become important in highway
cuts or at locations where a high water table exists near the pavement structure.
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____ are commonly used to join the edges of plates and structural members.
A. Plug welds B. Spot welds C. Fillet welds D. Butt welds
Your tractor broke down and was in the shop for 4.5 days. Mechanics worked on it for 23.2 hours at $78 per hour. They replaced $2,905.72 worth of parts. You lost $21 per hour by not having the use of the tractor. You work a 12-hour day.
a. What did the labor cost? b. What did the repair cost (labor and parts)? c. What did it cost by not having the use of the tractor? d. What did the breakdown actually cost?
Technician A says that a constant rate spring has the same deflection rate throughout its entire range of compression. Technician B says that some coil springs have different diameters at the top and bottom of the spring. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Which of the following is true of the function of an Eaton RoadRanger AMT electric shifter assembly?
A. moves the shift finger transversely into one of the three rails B. moves the ball screw block on the gear select yoke C. actuates the shift shaft to move forward or rearward D. all of the above