Which of the following is NOT a feature of ControlNet network?
A) ControlNet is a sub-network off the DeviceNet network.
B) PLCs use ControlNet scanner cards when added to the network.
C) Devices attached to the network include operator interface terminals, remote I/O modules, motor drives and personal computers.
D) Both coaxial and fiber optic cables are used to transmit data on the network.
A
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The South held about ____ percent of the slaves in the 13 colonies of North America.
A. 100 B. 90 C. 80 D. 70 E. 50
? Identify and state the historical significance of Uncle Tom's Cabin.
What will be an ideal response?
All of the following statements are true EXCEPT:
A. gas shocks were invented to control aeration, cavitation, and foaming of the hydraulic fluid. B. pressurizing the oil column in the shock absorber keeps the bubbles in the solution. C. some gas shocks have a pressurized gas-filled cell. D. twin-tube gas shocks are pressurized with nitrogen gas at 30-90 psi, depending on the manufacturer and the damping force desired.
Two of the worst nonindigenous birds are the rock dove, or common pigeon, and the English or house sparrow
a. True b. False Indicate whether the statement is true or false