CH 4: Introduction to Automation

Which element of an automated system is responsible for operating the system?

• Control system

• Program of instructions

• Power

• Human input

Which activity might be included in a program of instructions?

• Motor on or off

• Painting the machine

• Designing a new product

• Hiring new staff

Which control system is described as simpler and less expensive?

• Closed-loop

• Open-loop

• Feedback

• Input-output

What is the role of an actuator in a control system?

• Provide feedback

• Compare input and output

• Execute control actions

• Reduce cost

What is the role of the feedback sensor in a feedback control system?

• To measure the input parameter

• To adjust the actuator

• To provide information about the output variable

• To control the process directly

What is the role of the process in both control systems?

• To measure the input parameter

• To execute the control action

• To transform the input into the output

• To provide feedback

What is the function of the worktable in the system?

• To provide rotational motion

• To support the object being positioned

• To measure speed

• To amplify signals

What should be used if the conditions for an open-loop control system do not apply?

• A manual control system

• A closed-loop control system

• No control system

• An open-loop control system

Which of the following is NOT a condition for using an open-loop control system?

• Simple actions

• Reliable actuating function

• Large opposing reaction forces

• Small opposing reaction forces

Error detection and recovery in automation systems aim to:

• Increase production speed

• Minimize downtime

• Maximize profit margins

• Enhance brand image