Chemical Engineering > GATE 2011 > Control Systems
The following diagram shows a CSTR with two control loops. A liquid phase, endothermic reaction is taking place in the CSTR, and the system is initially at steady state. Assume that the changes in physical properties of the system are negligible.
TC: Temperature controller, LC: Level controller, TT: Temperature transmitter, LT: Level transmitter, V1 and V2: Control valves
Which ONE of the following statements is TRUE?
A
Changing the level controller set point affects the opening of V2 ONLY
B
Changing the temperature controller set point affects the opening of V2 ONLY
C
Changing the temperature controller set point affects the opening of BOTH V1 and V2
D
Changing the level controller set point affects the opening of BOTH V1 and V2

Correct : a

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