08.02 Wiring Diagrams And Power Requirements - Quiz

Section 8.2 Quiz: Wiring diagrams and power requirements

1. What is the power consumption of a servo motor operating at 6V and drawing 1.5A?

   • 4.0W
   • 7.5W
   • 9.0W {data-correct}
   • 10.5W

2. Which wire colour is conventionally used for ground connections in DC circuits?

   • Red
   • Black {data-correct}
   • Blue
   • Yellow

3. A system draws 3A from a 12V battery. What is the minimum fuse rating needed with a 25% safety margin?

   • 3A
   • 3.75A {data-correct}
   • 4.5A
   • 5A

4. Why do we typically only use 80% of a battery’s rated capacity in runtime calculations?

   • To account for manufacturing tolerances
   • To prevent complete discharge and extend battery life {data-correct}
   • Because batteries lose capacity over time
   • To reduce system weight

5. A mobile robot has the following components: microcontroller (5V, 0.5A), two motors (12V, 2A each), and sensors (5V, 0.2A). What is the total power consumption?

   • 51.6W {data-correct}
   • 48.0W
   • 45.5W
   • 53.2W

6. Which of the following are essential safety practices for mechatronic wiring? (Select all that apply)

   • Using appropriate wire gauge for current capacity {data-correct}
   • Installing fuses on power circuits {data-correct}
   • Colour coding wires consistently {data-correct}
   • Using the highest voltage possible for all components

7. A robot system consumes 2.5A continuously. How long will it operate on a 4Ah battery, assuming 80% usable capacity?

   • 1.28 hours {data-correct}
   • 1.6 hours
   • 2.0 hours
   • 3.2 hours

8. What does Ohm’s Law describe?

   • The relationship between power and current
   • The relationship between voltage, current, and resistance {data-correct}
   • The relationship between battery capacity and runtime
   • The relationship between wire gauge and current capacity