Process Control Quiz

It is that variable which is measured monitored and controlled?

For studying detailed variations with time, one uses

__________is a set of technologies that results in operation of machines and systems without significant human intervention and achieves performance superior to manual operation

The _________ is a function which describes the process and provides the information about other process parameters which influence the controlled variable.

Whenever a process load change or transient occurs, it causes a change in the controlled variable. The process control loop responds to this change to ensure that, after some finite time the controlled variable reaches the setpoint. The part of this time consumed by process itself is called __________.

The deviation of controlled variable from the set point is called________.

What is the overall transfer function (C/R) of the following block diagram if G = G1. G2. G3 and H = H1H2.

The transfer function of first order system is

Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop.

In second order underdamped system,

A stable system is the one

Process degree of freedom indicates __________ number of controllers to be used.

A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if

On-off controllers are normally used for

For a feed back control system to be stable, the

What is the order of response exhibited by a U-tube manometer?

The response of two tanks of same size and resistance in series is

In the closed loop control system, proportional Integral controller mode is preferred when compared to Proportional controller (P)

Slow response of over-damped system can be made faster with the help of

Which one of the following can be result of introducing an integral action in the forward path of unity feedback system

The function of the proportional plus integral mode is to ____________?

Which one of the following controllers increases the damping ratio of the system?

Which one of the following controllers reduces the steady state error?

The function of the proportional plus derivative mode is to ____________?