which of the following is the safe way to unhook and hook up a battery

Answer: The safe way to unhook (disconnect) and hook up (reconnect) a car battery is to follow these steps:

Unhooking (Disconnecting) a car battery: 1. Turn off the engine and ensure that the ignition is in the off position. 2. Locate the battery and identify the positive (+) and negative (-) terminals. 3. Use the appropriate size wrench to loosen the bolt on the negative terminal clamp. 4. Carefully remove the negative terminal clamp from the battery post, being mindful to avoid touching any metal with the clamp. 5. Proceed to loosen the bolt on the positive terminal clamp. 6. Remove the positive terminal clamp from the positive battery post.

Hooking up (Reconnecting) a car battery:

1. Make sure all the electrical accessories in the vehicle are turned off.

2. Clean the battery terminals and terminal clamps with a wire brush if there is corrosion.

3. Place the positive terminal clamp onto the positive battery post.

4. Tighten the bolt on the positive terminal clamp so that it has a firm connection that cannot move.

5. Attach the negative terminal clamp to the negative battery post.

6. Tighten the bolt on the negative terminal clamp to secure it.

Safety Tips: - Always wear protective eyewear and gloves when working with a car battery. - Never smoke or work near open flames, because batteries emit flammable gases. - Keep metal objects and jewelry away from the battery to prevent short circuits. - If you're unsure about performing this task, it's best to seek professional assistance.