A. P-controller
B. P-I controller
C. P-D controller
D. P-I-D controller
Related Mcqs:
- Which of the following controllers has the least maximum deviation ?
A. P-controller
B. P-I controller
C. P-I-D controller
D. P-D controller - Stabilising time for the controllers is the time required for the response to reach _____________ percent of its ultimate value?
A. 63.2
B. 87.5
C. 95
D. 100 - Positioning controllers are used for _______________?
A. Low loads
B. Temperature changes
C. High loads
D. Flow rate changes - On-off controllers are normally used for________________?
A. Low loads
B. Temperature changes
C. Flow rate changes
D. None of these - Process degree of freedom indicates _______________ number of controllers to be used?
A. The maximum
B. The minimum
C. Both maximum and the minimum
D. Nothing about the - The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?
A. Reducing value of Kc
B. Introducing integral control
C. Introducing derivative control
D. None of the above - A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if________________?
A. Kc is reduced
B. Kc is increased
C. Integral control action is introduced
D. Derivative control action is introduced - If response of a control system is to be free of offset and oscillation, the most suitable controller is_________________?
A. Proportional controller
B. Proportional-derivative (PD) controller
C. Proportional-integral (PI) controller
D. Proportional integral-derivative (PID) controller - Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion ?
A. Nickel
B. Brass
C. Chromel
D. Invar - Which of the following shows maximum dip effect (indicating reverse direction of temperature change) ?
A. Mercury thermometer
B. Radiation pyrometer
C. Bimetallic thermometer
D. Thermocouple
