What is the reason for using a twisted wire pair for the data backbone on J1939 buses?
A. reduces surface area on which electromagnetic interference can act
B. increases the surface area available for electromagnetic transmission
C. increases the overall toughness of the wire
D. reduces the transmissions speeds of data packets to an acceptable level
Answer: A
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What will be an ideal response?
The synchronous speed at which a four-pole, 60Hz induction motor operates is _____.
a. 1,140 rpm b. 1,800 rpm c. 2,500 rpm d. 6,900 rpm
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Indicate whether the statement is true or false.
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