Question64:-An equal percentage valve has a maximum flow of 100 em3/s and a
minimum flow of 4cm3 /s. If the full travel is 4cm, find the flow at 2cm opening

A:-40 em3 /S
B:-10cms /s
C:-50cms /s
D:-20cm3 /S
Correct Answer:- Option-D

Question65:-Valve positioners are mandatory in the following circumstances
(i) When accurate valve position is required

(ii) To speed up the response of a valve

(iii) Where a pressure boost is required to give the necessary actuator force
(iv) All the above

A:-(i) and (ii)

B:-(i) and (iii)

C:-(ii) and (iii)

D:-(iv)

Correct Answer:- Option-D

Question66:-Which among the following is the tendency of a process to adopt
specific value of the controlled variable for nominal load with no control operations?

A:-Setpoint tracking
B:-Self regulation
C:-Disturbance rejection
D:-Integrating

Correct Answer:- Option-B

Question67:-lf a single process output is controlled by incorporating the actions of
several manipulated variables, which produce the same effect on the overall
system is known as

A:-Adaptive control
B:-Inferential control
C:-Cascade control
D:-Splitrange control
Correct Answer:- Option-D

Question68:-In a feed forward control loop, process transfer function is given as
© =< and disturbance is expressed as c,is)=*=*. Find the transfer function c.s of
the feedforward controller

പും
B:-3e-035
റോം
D 2736035