Understanding Cordless Drill Components

Which part of the cordless drill is responsible for holding the drill bit or screwdriver bit in place and is adjustable for different bit sizes?

• Motor

• Chuck

• Trigger

• Battery Pack

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DOK Level 3: Strategic Thinking

If you need to remove a screw from a piece of wood, which part of the cordless drill would you use to change the drill’s rotation direction?

• Torque Adjustment Collar

• Gear Selector

• Forward/Reverse Switch

• Trigger

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DOK Level 3: Strategic Thinking

Explain how the torque adjustment collar (clutch) can prevent overdriving screws and why this is important in woodworking projects.

• It sets the amount of torque, preventing the drill from applying too much force, which can strip the screw or damage the wood.

• It changes the speed of the drill, making it easier to control.

• It holds the drill bit in place, ensuring it doesn't slip.

• It powers the drill, ensuring consistent performance.

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DOK Level 3: Strategic Thinking

A student is using a cordless drill to assemble a piece of furniture. They notice that the drill bit is not rotating even though the motor is running. Which part of the drill should they check first and why?

• Battery Pack, to ensure it is fully charged.

• Chuck, to ensure it is properly tightened around the drill bit.

• Trigger, to ensure it is being pressed correctly.

• Gear Selector, to ensure it is in the correct position.

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DOK Level 3: Strategic Thinking

Describe a scenario where adjusting the gear selector (speed selector) on a cordless drill would be necessary and explain the reasoning behind your choice.

• Drilling into metal, because higher speed is needed for harder materials.

• Drilling into softwood, because lower speed is needed to prevent damage.

• Driving screws into hardwood, because lower speed provides better control.

• Removing screws from plastic, because higher speed is needed for efficiency.

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DOK Level 3: Strategic Thinking

A student is working on a project that requires precise control over the speed of the drill. Which part of the cordless drill should they focus on using and why?

• Motor, because it converts battery power into mechanical energy.

• Trigger, because it activates the motor and controls speed based on how hard it is pressed.

• Battery Pack, because it powers the drill.

• Chuck, because it holds the drill bit in place.

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DOK Level 3: Strategic Thinking

In a situation where the drill bit keeps slipping out of the chuck, what steps should be taken to resolve this issue?

• Check the battery pack to ensure it is fully charged.

• Tighten the chuck to ensure it is securely holding the drill bit.

• Adjust the torque adjustment collar to a higher setting.

• Change the forward/reverse switch to the correct position.

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DOK Level 3: Strategic Thinking

Why is it important to have a rechargeable battery pack in a cordless drill, and how does it impact the tool's usability?

• It allows the drill to be used without being tethered to a power outlet, increasing portability and convenience.

• It ensures the drill bit is held securely in place.

• It controls the speed of the drill.

• It adjusts the torque applied by the drill.

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DOK Level 3: Strategic Thinking

A student needs to drill a hole in a metal sheet. Which part of the cordless drill should they adjust to ensure they have enough power and control for this task?

• Forward/Reverse Switch

• Torque Adjustment Collar

• Gear Selector

• Trigger

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DOK Level 3: Strategic Thinking

How does the motor in a cordless drill convert battery power into mechanical energy, and why is this conversion crucial for the drill's operation?

• The motor uses electrical energy from the battery to create rotational force, which is necessary to turn the drill bit.

• The motor holds the drill bit in place, ensuring it doesn't slip.

• The motor adjusts the torque applied by the drill.

• The motor controls the speed of the drill.

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DOK Level 3: Strategic Thinking