WorksheetsPDC quiz1
Total questions: 10
Worksheet time: 10mins
A controller is used to
Reduce the error
by generating a
correction signal to
the final control
element
Eliminate the disturbance by generating a correction signal to the final control element
Both (a) and (b)
Increase the error
by generating a
correction signal
to the final
control element
A proportional (P) controller
Continuously adjusts the manipulated variable so that the input to the process is approximately balanced with the process demand
continuously adjust the controlled variable so that the input to the process is approximately balanced with the process demand
Both (a) and (b)
continuously
adjust the
controlled
variable so that
the input to the
process is
approximately
balanced with
the process
demand
In proportional control
The output of controller is directly proportional to the error
The output of controller is inversely proportional to the error
Both (a) and (b)
The output of controller is inversely proportional to the set-point
A condition where integral control drives the output of a controller into saturation is called _________
Wind up
Noise
Repeat
offset
With a proportional-only controller, if measurement rules set point, the output will be
0
100 percent
50 percent
impossible to
define
All control systems that fit into the usual pattern are__________
Open-Loop
Nonself-
regulating
Closed-loop
On/off
Positioning controllers are used for
Low loads
Temperature
changes
High loads
High loads
Which phenomenon occurs due to coincidence of two output signals generated manually as well as by control algorithm at the time of switching in manual mode?
Bumped Data Transfer
Bumpless Transfer
Coincidence Data Transfer
Coincidence Data Transfer
Reset control action is often expressed in units of
Percent
Seconds per rate
Minutes
Repeats per minute
In propositional-plus-integral (PI) control, the output is propositional to a linear, combination of the ________ error and ______ of the input error.
input, time interval
output, time
interval
set-point, time
interval
manipulated, time interval
