QUIZ 2

Question 1

__________ determines the speed of the response of a second order system?

Answer 1

time constant

Question 2

_________ determines the oscillatory behavior of a second order system?

Answer 2

damping factor

Question 3

This is the time required for the response to first reach its ultimate value

Answer 3

rise time

Question 4

Input variables in which their values can be adjusted freely by the human operator or a
control mechanism:

Answer 4

manipulated variables

Question 5

This is the hardware element that receives information from the measuring devices and
decides what action should be taken.

Answer 5

controller

Question 6

The time required for the response to reach within +-5% of its ultimate value is

Answer 6

response time

Question 7

A ________________ is an arrangement, of physical components connected or related in such as manner as to command, direct or regulate itself or another system.

Answer 7

control system

Question 8

A control system mechanism wherein the aim is to have the value of the output follows the changes of
the value of the set point at all times.

Answer 8

servo mechanism

Question 9

A control system mechanism wherein the aim is suppress the effect of any disturbances, the value of
output should always follow the fixed value of the set point.

Answer 9

regulatory mechanism

Question 10

_________ and ___________ determines the speed of the response of a second order system and the oscillatory behavior of a second order system, respectively.

Answer 10

time constant; damping factor

Question 11

The second order system with damping factor equal to 1

Answer 11

critically damped

Question 12

The second order system with damping factor less than 1

Answer 12

underdamped

Question 13

The second order system with damping factor greater than 1

Answer 13

overdamped

Question 14

The second order system with damping factor equal to 0

Answer 14

undamped

Question 15

The horizontal line drawn at y = AKp(1-e^-1) in the plot of the step change response of a first order system will determine the _______________ of the first order system.

Answer 15

time constant

Question 16

What is the matlab command that solve ordinary differential equations using Runge Kutta 4/5 Algorithm?

Answer 16

ode45

Question 17

What is the matlab command to make a transfer function if the vector of coefficients of the numerator and denominator of the transfer function is given?

Answer 17

tf

Question 18

What is the matlab command to multiply two transfer functions?

Answer 18

series

Question 19

What is the matlab command to obtain the unit step response of a transfer function?

Answer 19

step

Question 20

What is the matlab command to obtain the unit impulse response of a transfer function?

Answer 20

impulse

Question 21

In control industry, the proportional band is a parameter that is used to relate the _______________ of the control system.

Answer 21

controller gain

Question 22

This industry term is used to represent the effect of the integral control mode in the control system.

Answer 22

reset rate

Question 23

In order to minimize the oscillation, derivative time constant of the derivative controller parameter is
usually increased, what is the industry term for this parameter?

Answer 23

rate

Question 24

It is a type of control mode wherein the
controller produces an output signal that is
directly proportional to the error, its
duration and its rate of change

Answer 24

Proportional-Integral-Derivative (PID) Controller