What possible problem(s) could emerge if IEEE 802.11 (unsecured WiFi) is adopted as the FMCSA telematics protocol standard?
A. High value load security
B. Dangerous goods security
C. Driver and fleet information security
D. All of the above
Answer: D
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Which of the following may cause reduced production?
A. Improper cooling tower lineup B. Failure to treat cooling water chemically C. Improper chemical addition to the cooling tower D. Circulating cooling water through a heat exchanger with ruptured tubes
Briefly describe the stages of ABS solenoid operation.
What will be an ideal response?
S.S. Brenner, (Jour.Appl.Phys., 27 1484 [1956]), has reported that iron whisker single crystals may have a tensile strength of 13,130 MPa. Assume that the iron whiskers have a <100> orientation; that is, a <100> direction of the crystal lies along its central axis.
(a) Compute the magnitude of the shear stress on the most highly stressed {110}<111> slip systems when the ultimate tensile strength is attained. How many of these slip systems are there? (b) The shear modulus, ยต, along a <100> direction of a {110} plane is 59,810 MPa. Compute the ratio of ?tmax/u. (c) According to theoretical calculations, the maximum shear strength of a crystal should be ofthe order of 10u ? to 30u? . How does the value obtained in (b) of this problem compare to the theoretical predictions? (d) Now assume that one of the slip planes is ideally oriented, so as to have both ? and ? in the resolved shear stress equation equal to 45 degrees, and compute ?tmax/u (e) On the basis of these calculations, what can one conclude about the occurrence of slip in the iron whiskers? Does this signify anything about the perfection of the crystal structure in the iron crystal whiskers?
Your mold is filling completely, but you have weld-lines in your part. Give three possible parameter changes to alleviate the problem
What will be an ideal response?