Questions from Homework #2
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| What type of drawings contain the most detail, to include instrumentation and the entire primary control system? | P&ID
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| What is the range & units used in Pneumatic Control Signals? | 3 to 15 PSI
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| What is the range & units used in Voltage Control Signals? | 1.000 to 5.000 VDC
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| What is the range & units used Amperage Control Signals? | 4.00 to 20.00 mA
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| Instrumentation commonly use a _____ to represent the physical device | Circle or balloon
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| What is an instrument powered by air or other gases? | Pneumatic
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| What is an instrument located near the process? | Local
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| What is an instrument located away from the process? | Remote
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| What is an instrument powered by electricity? | Electronic
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| To how many decimal places are Voltage Control Signals accurate? | 3 decimal places
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| To how many decimal places are Amperage Control signals accurate? | 2 decimal places
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| Why are Voltage Control Signals usually co-located near the process? | Signals lose voltage over distance due to resistance
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| If an electrical transmission signal is listed on a P&ID, will it be Voltage or Amperage? | Amperage
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