A. P-controller
B. P-I controller
C. P-I-D controller
D. P-D controller
Related Mcqs:
- Which of the following controllers has maximum offset ?
A. P-controller
B. P-I controller
C. P-D controller
D. P-I-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 - Which of the following thermocouples has the least temperature measurement range ?
A. Copper-constantan
B. Chromel-alumel
C. Platinum-platinum/rhodium
D. Iron-constantan - Which of the following thermocouples can measure the maximum temperature ?
A. Platinum-rhodium
B. Tungsten-molybdenum
C. Chromel-alumel
D. Iron-constantan - Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity ?
A. CO2
B. N2
C. O2
D. CO - 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
