Q PROCESS INSTRUMENTATION CH. 9 TEST PROCESS INSTRUMENTATION CH. 9 TEST Match the words to TERMS A. Noise B. E/P conversion C. Pneumatic transmission D. Analog transmission E. Digital transmission F. E/l conversion G. I/P conversion H. Insulation I. Mechanical transmission J. Electrical transmission K. Optical transmission L. P/I conversion M. Shielding N. Zeroing out O. I.E. conversion 1.__a signal transmission in which process variable measurements change in a continuous manner mirroring the actual process variable, p. 169. 2.__ a signal transmission method that uses digital devices to create a binary signal. 3.__the conversion of a signal from voltage to current. 4.__-the conversion of a signal from voltage to analog pneumatic. 5.__ -a signal transmission method that uses electrical devices to create a signal,. 6.__the conversion of a signal from current to voltage. 7.__ the conversion of an analog signal from current to pneumatic. 8.__-any substance that prevents the passage of heat, light, electricity, or sound from one medium to another. 9.__a signal transmission method that uses mechanical methods to create a signal. 10.__any unwanted or excessive sound 11.__ a signal transmission method that uses light frequencies to create a signal. 12.__the conversion of an analog signal from pneumatic to current. 13.__-an analog signal transmission method that uses compressed air/gas to create a signal. 14__- a technique used to control external electromagnetic interference (EMI) by preventing transmission of noise or static signals from the source to the receiver, consists of foil, mesh, or woven wire. 15. Which of the following types of devices is used to convert control signal from one form to another? a. Transducer b. Signal converter c. Heat tracing d. Sensor shielder 16. Which of the following can cause interference with a control signal? a. Overhead airplanes b. Electrical interference from a thunderstorm c. Power outages within a plant d. Loud noises within the plant 17. Which of the following can be used to maintain the integrity and reliability of a signal transmission? (Select all that apply.) a. Grounding b. Error correction c. Transducers d. Signal conditioning 18. You are working in a process facility that is a nonhostile environment with a low level of noise. You need to identify an electrical transmission type that is inexpensive and reliable. Which transmission type should you use? a. Analog b. Digital c. Optical d. Mechanical 19. You are working in a process facility that needs to identify a transmission method that is immune to outside interferences. Your facility also needs to use a signal that can travel over long distances without degradation. Which transmission type should you use? a. Analog b. Digital c. Optical d. Mechanical 20. Calculate the percent flow rate for 14 % D/P. PreviousNext