PAE: Electromechanical Systems

​ (a)   systems consist of elements needed to supply, distribute and use electrical energy.

• Mechanical

• Electrical

Select all of the following statements which describe an electromechanical system.

• They are made up of mechanical and electrical systems

• They can convert electrical energy into mechanical energy

• They can convert mechanical energy into electrical energy

• They do not require electricity to function

• They require electrical and mechanical systems to sync and interact

Which of the following describes input in a control system?

• Information created by and distributed by a system

• Transforms incoming information into outgoing information

• Manages the behavior of various components in a system

• The set point to direct the outcome of a system

Which of the following describes controls in a control system?

• Information created by and distributed by a system

• Transforms incoming information into outgoing information

• Manages the behavior of various components in a system

• The set point to direct the outcome of a system

Open-loop systems input and feedback to control a system’s functions.

• True

• False

While on long road trips, using cruise control to control the speed of the car saves Patrick from driving fatigue. He simply pushes the accelerator to his desired speed, then presses the “set” button. This triggers the system to remember the throttle position and speed then keeps it at that position. The engine recognizes disturbances to the speed, like hills and wind resistance, and adjusts the throttle appropriately to maintain the desired speed.

Match the control system parts to their corresponding element.

• engine

• input

• car speed

• control

• desired speed

• process

• setting the cruise control

• output

Which of the following is an example of an open-loop control system?

• Air conditioner

• Hair dryer

• Oven

• Electric iron

Which type of system is represented in the diagram?

• Open-loop system

• Closed-loop system

• Multi-loop system

• Negative-loop system

When considering a student listening to music with headphones, the headphones would be the input device.

• True

• False

The process turns input into output in a system.

• True

• False