A multiple trailer train combination consisting of a tractor and two trailers is spec'd to haul close to maximum loads. Throughout axles in the rig, where would you find the lowest relay valve crack pressures if the rig is spec'd for balanced braking?
A. rear axles on the pup trailer
B. rear axles on the lead trailer
C. tractor drive axles
D. tractor steer axle
Answer: A
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Referring to the figure shown below, assuming fuse F3 is supplied with ignition voltage, which failure(s) could cause the pump motor to run at all times even with ignition switch in the OFF position?
A. Defective flow switch B. Defective pressure differential switch C. Misadjusted hydraulic brake switch D. All of the above could cause this failure.
Joseph built a levee averaging 1.8 feet high, 4.2 feet wide, and 4,200 feet long. He used a scraper with a capacity of 6 yards to build the levee. (Note: Yards means cubic yards.) To get the dirt, he lowered the field 4 inches with the scraper
a. How many yards of dirt are in the levee? Express your answer using scientific notation with one decimal place. b. How many yards of dirt were moved? (Note: Do not forget that the field was lowered.) c. How many trips did he make with the scraper?
To avoid smearing polish, especially in a pedicure application, the top coat should be followed by:
What will be an ideal response?
Determine all reactions for the frame in Figure P9.40 given I AB = 600 in. 4 , I BC = 900 in. 4 , and E = 29,000 kips/in. 2 . Neglect axial deformations.
