Fundamentals of Electrical Engineering

Published by McGraw-Hill Education
ISBN 10: 0073380377
ISBN 13: 978-0-07338-037-7

Chapter 1 - Introduction to Electrical Engineering - Homework Problems: 1.2

Answer

a) A ship must use a power system to power its radar, lights, and navigation tools. Ships must also use electric machinery such as a DC motor to spin the radar. Digital electronics can be used for electrical displays such as the radar display, and a GPS display. Computer systems must be used for navigation and data processing to make sure the motor does not overheat. Communication systems can be used with a radio to contact nearby ships. b) A commercial passenger aircraft needs a power system to power the lights, televisions, and display. They also need electronic machinery to control the flaps. Digital electronics are used in the displays in the cockpit. Computer systems are required for all the sensors and autopilot features. And a communication system can be used in a radio to contact air traffic control. c) A household uses a power system to power all the appliances such as the TV. Electronic machinery can control the garage door and ceiling fan. Digital electronics can be used in your electronic thermostat or computer. And computer systems are used in the alarm system. d) A chemical process control plant uses power systems for all their displays and sensors. They use electronic machinery to move or create chemicals. Digital electronics are used in the control room. Computer systems are used to process the data coming from the sensors and to analyze the chemical.

Work Step by Step

a) A ship must use a power system to power its radar, lights, and navigation tools. Ships must also use electric machinery such as a DC motor to spin the radar. Digital electronics can be used for electrical displays such as the radar display, and a GPS display. Computer systems must be used for navigation and data processing to make sure the motor does not overheat. Communication systems can be used with a radio to contact nearby ships. b) A commercial passenger aircraft needs a power system to power the lights, televisions, and display. They also need electronic machinery to control the flaps. Digital electronics are used in the displays in the cockpit. Computer systems are required for all the sensors and autopilot features. And a communication system can be used in a radio to contact air traffic control. c) A household uses a power system to power all the appliances such as the TV. Electronic machinery can control the garage door and ceiling fan. Digital electronics can be used in your electronic thermostat or computer. And computer systems are used in the alarm system. d) A chemical process control plant uses power systems for all their displays and sensors. They use electronic machinery to move or create chemicals. Digital electronics are used in the control room. Computer systems are used to process the data coming from the sensors and to analyze the chemical.
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