Which of the following is not a method used to define the structure of the DS-3 signal?
A) clear channel B) C-bit parity format
C) M23 framing format D) ESF
D
You might also like to view...
In a recirculating water system condenser, the leaving water temperature is normally ____________________°F lower than the condensing temperature of the refrigerant.
Fill in the blank(s) with the appropriate word(s).
PROBLEM 3.31
PROBLEM 3.31 While an oil well is being drilled at a depth of 2500m, it is observed that the top of the 200-mm-diameter steel drill pipe (G = 77.2 GPa) rotates through 2.5 revolutions before the drilling bit starts to operate. Determine the maximum shearing stress caused in the pipe by torsion.
The permeability of air is ________
A) 19.2 B) 1 C) 7 D) 22
The most common fillet welds made are in _____
a. lap and T-joints b. horizontal joints c. overhead joints d. vertical joints