Certified Technology Specialist (CTS) Practice Exam

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Get ready for the Certified Technology Specialist (CTS) Exam! Study with flashcards and multiple choice questions, each with detailed explanations. Enhance your knowledge and skills to excel in the exam.

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When selecting a DC power supply for long distances, which factor must be considered?

Overload current
Voltage drop
Power factor
Frequency response

The correct answer is: Voltage drop

When selecting a DC power supply for long distances, voltage drop is a critical factor that must be considered. This is because as electricity travels along conductors, it experiences resistance, which leads to a loss of voltage over distance. The longer the cable length or the lower the gauge of the wire (thinner wire), the more significant the voltage drop can be. If the voltage drop is too high, the devices powered by the DC supply may not receive sufficient voltage to operate correctly, which can lead to inefficiencies, malfunction, or damage. Calculating the expected voltage drop helps ensure that the selected power supply can compensate for these losses, allowing for reliable performance of the equipment at the receiving end. Taking voltage drop into account aids in determining the appropriate wire gauge, ensuring that the system will function as intended over the length of the run.