A new chemical-free water purification technology is used in cooling towers to ____.
A. avoid vortexing
B. balance the water flow
C. eliminate scale
D. All of the above.
Answer: C
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Matched processors for two orthogonal signals for multiple access.
The following worksheet specifies a pair of 10-sample CDMA orthogonal data signals: sA sub "1" in B5:B14 and sB sub "1" in C5:C14. Random transmitted bits DA sub "t" and DB sub "t" are computed in B1 and D1. The transmitted signal sAT sub "i" (in D5:D14) = sA "sub "i" if DAt=1 and =-sA sub "i" if DAt=0. The transmitted signal sBTi (in E5:E14) = sBi if DBt=1 and =-sBi if DBt=0. The Gaussian noise sequence Ni SD ? sub "N" is specified in F1. The detected signal X sub "i" is computed in G5:G14. The matched processor component sAiX sub "i" is computed in H5:H14 and VA is computed in H16. The detected bit DAr is computed in B2 from VA. The matched processor component sB sub "i" X sub "i" is computed in I5:I14 and VB is computed in I16. The detected bit DB sub "r" is computed in D2 from VB.
a. What is the formula in B1?
b. What is the formula in D1?
c. What is the formula in D2?
d. What is the formula in F2?
e. What is the formula in D10?
f. What is the formula in E10?
g. What is the formula in F10?
h. What is the formula in G10?
i. What is the formula in H10?
j. What is the formula in H16?
k. What is the formula in B2?
l. What is the formula in I10?
m. What is the formula in I16?
n. What is the formula in D2?
o. What is the formula in L1?
p. What is the formula in L4?
q. Compose ResetMA.
r. Compose XmitMA.
s. Compose AutoMA.
The stationary magnet of a DC motor is represented by the _____.
a. armature b. field poles c. commutator d. rotor
Answer the following statement(s) true (T) or false (F)
1. A sheep’s shoulders affects its length of stride off the front end. 2. The shape and tightness of a sheep’s shoulder help balance the lamb. 3. During inspection, judges should rub sheep vigorously to determine fat thickness on the ribs.
Why does the compressor on a leaking system become overheated?
A) There is a reduced amount of coolant. B) It is a result of unbalanced lines. C) It is an overworked system. D) There is too much coolant overworking it.