Deck 6: Types of Control

Question 1

A(n) ____ is a piece of hardware that measures system variables.

A) actuator
B) sensor
C) limit switch
D) controller

Answer 1

B

Question 2

Mathematically, the rate of change of a quantity is known as the ____.

A) proportion
B) integer
C) fluctuation
D) derivative

Answer 2

D

Question 3

The error time component is known as the ____________________ and is effectively equal to the error multiplied by the length of time the error has existed.

Answer 3

integral term

Question 4

Proportional control is a form of closed-loop control that is intended to eliminate the continuous cycling inherent in ____________________.

Question 5

Only minimal sensor tasks are required when automating technical processes.

Question 6

In closed-loop control, a sensor is utilized to create a feedback loop for the ____________________.

Question 7

The performance of a proportional control system can be significantly improved by adding in a(n) ____________________ term to improve the dynamic response and reduce overshoot.

Question 8

In order for there to be a control signal, an error must exist between input and output; that is, the load can never be exactly in the required position. This condition is known as the ____ error.

A) proportional
B) derivative
C) steady-state
D) overshoot

Question 9

In an open-loop system, there is no feedback provided to the control system to monitor the device and to compensate for any error in the system.

Question 10

In fast-acting systems, the integral term tends to make the system more stable.