INSTR DFTG TEST 1

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Author:
deejayrez
ID:
139457
Filename:
INSTR DFTG TEST 1
Updated:
2012-03-04 13:36:15
Tags:
TEST
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Description:
NOTES
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  1. what is a closed loop system
    • -automatic op
    • -effective loop system
    • -all systems consist of feedback
  2. single variable loop systems consist of
    • -measuring device
    • -transmitter
    • -controller
    • -final control element
  3. what is open loop system
    -involves maual operation
  4. Liquid properties that cause its pressure to change
    • -head
    • -density
    • -hydrostatic pressure
    • -specific gravity
    • -temp
    • -atmosphereric
    • -mechanical pressure
  5. gas properties
    • -temperature
    • -compression
    • -vacuum
  6. what are some pressure measurements
    • -psig
    • -psia
    • -psid
    • -psiv
  7. sensor guage types
    • -liquid column guages
    • -mechanical guages
    • -electronic pressure guages

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