Basic Instrumentation Ch 1 Flashcards
We have to measure and control so that we may control the quality and quantity of a product?
a) True
b) false
a) True
Which of the following is an example of direct measuring?
a) gauge glass
b) pressure gauge
c) temperature gauge
d) all above
a) gauge glass
What is mode of control
a) proportional
b) floating
c) on and off
d) all above
d) all above
A device that indicates the value of the controlled variable would best describe:
a) measuring means
b) Final Control Element
c) Set Point
d) none above
a) measuring means
What enables the operation to bring about change in the controlled element would best describe:
a) measuring means
b) final control element
c) set point
d) none above
b) final control element
the desired value of the controlled variable would best describe
a) measuring means
b) final control element
c) set point
d) none above
c) set point
The term used to denote that information related to the controlled variable is sent back to the controlling means so that corrective action can be taken is called feedback
a) True
b) False
a) True
Lag is caused by the time lapse that occurs between the moment a set point change command is sent and when change actually occurs
a) True
b) False
a) True
Dead zone or Dead band is the area of movement where all of the output occurs
a) True
b) False
b) False
The size of the system has no effect on the process reaction time.
a) True
b) False
b) False
Name 4 characteristics that affect the performance of the controls in an automatic control system
a) Resistance Lag
b) Rate Response
c) Dead Band
d) Resistance
e) Impedance
f) Cycling
A, C D, F
Rate response is a term derived from the control action produced by the feature is based on the rate at which the controlled variable changes value
a) True
b) False
a) True
