The Radius of the Circle in the Figure Is 2 $D C$

question 18

Multiple Choice

The radius of the circle in the figure is 2 units. Express the length $D C$ in terms of $\alpha$ .

• A) \(2 \cos \alpha\)
• B) \(2 \cot \alpha\)
• C) \(2 \sin \alpha\)
• D) \(2 \tan \alpha\)
• E) \(2 \sec \alpha\)

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Definitions:

Planetary Gearset

A compact and efficient gear system that consists of one central gear (sun gear), several outer gears (planet gears), and a ring gear, used in various automatic transmissions and mechanical devices.

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Refers to elevated levels of electrical resistance within circuits, which can lead to reduced current flow, inefficiencies, and potential overheating.

Voltage Drop Testing

A diagnostic method used to locate resistance or issues in an electrical circuit by measuring the voltage loss between two points under a load condition.

Ohmmeter

An electrical instrument used to measure the resistance of a component or circuit, aiding in troubleshooting and electrical work.