Final answer:
Stabilizer bars are checked during a vehicle's safety inspection because they are key to maintaining the vehicle's balance and safety. The high-voltage wires on metal-frame towers are not wrapped in insulating material but are instead held by insulating connectors.
Step-by-step explanation:
Stabilizer bars are indeed checked during a vehicle's safety inspection. Their purpose is to reduce the body roll of a vehicle during fast cornering or over road irregularities. They help maintain the car's balance and provide a safer driving experience by equalizing the weight distribution across the tires. As a crucial component of a vehicle's suspension system, inspectors ensure that these bars are in proper working order to contribute to the overall roadworthiness of a vehicle.
In response to the additional reference question, the statement that the high-voltage wires connected to tall metal-frame towers are wrapped in insulating material is false. These high-voltage wires, also known as power lines, are typically not insulated due to their elevated position, which decreases the chance of contact with people and objects. Instead, they are held aloft by insulating connectors that prevent electricity from traveling down the towers.