Electrical noise is such a problem in some installations that several manufacturers are using ____ instead of wires for connection to the I/O rack.
A. transistors
B. coaxial cables
C. optical cables
D. radio signals
Answer: C
You might also like to view...
Problem 1.67 Link BC is 6 mm thick and is made of a steel with a 450-MPa ultimate strength in tension. What should be its width w if the structure shown is being designed to support a 20-kN load P with a factor of safety of 3?
What option would a technician have to increase NPSH available when it is too low?
a. Decease the pressure above the liquid b. Decrease the liquid level c. Increase the pressure above the liquid d. Increase the liquid temperature
Technician A says that most crankshafts can be reground to be 0.010, 0.020, or 0.030 inch undersize. Technician B says that most engine bearings are constructed with an aluminum shell for strength and are covered with a tin-lead alloy. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
As a safety measure, when starting an LP gas furnace, you should position yourself:
A) In any position so long as you are not touching the furnace. B) Directly in front of the burners in order to observe the lighting sequence. C) Off to the side and low to the ground. D) Off to the side and off the ground.