Unlike chromatic dispersion, PMD (polarization mode dispersion) is caused by the structural change of the geometric shape of the fiber, and its value is determined only after the fiber is installed
Indicate whether the statement is true or false
TRUE
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Calculate the total diameter of the XF conductors.
You have a Rigid PVC conduit (RNC), schedule 80, that is required to hold the following conductors; six -18AWG TFN, ten -18AWG XFF and four -16AWG XF.
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What do you call the technicians protective head cover?
A) Hat B) Cap C) Bump cap D) Helmet
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The North American trucking industry is fully committed to reducing its impact on the environment while at the same time
A. promoting increased profitability B. promoting alternate types of fuels C. promoting sustainability D. all of the above
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What type of material is used for insulation in the walls of a modern freezer?
A. newspaper B. asbestos C. fiberglass D. plastic foam
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