Briefly describe how CDMA works.
What will be an ideal response?
With code division multiple access (CDMA), each user is allocated the entire spectrum all of the time. CDMA uses direct sequence spread spectrum (DSSS) and unique digital pseudo-random codes (PN codes), rather than separate RF frequencies, to differentiate between users. A CDMA transmission is spread across the frequency, and the digital codes are applied to the individual transmissions. When the signal is received, the codes are removed from the signal.
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A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected is called a ____.
a. bonding conductor b. bonding jumper, equipment c. bonding jumper, main d. bonding jumper, system
Degree
What will be an ideal response?
Airflow through an axial fan is:
A) From the inside of the fan blade outwards in a radial pattern. B) Parallel to the fan shaft. C) Perpendicular to the fan shaft. D) At a 45° angle to the fan shaft.
The pressure gage on a tank of compressed air reads 120 psi. The local atmospheric pressure is measured as 14.5 psi. What is the absolute pressure in the tank?
Given: Pg = 120 psi; Patm = 14.5 psi. What will be an ideal response?