A wig wag is:
Answers
A low pressure warning device.
A tube that carries air to the brakes.
A type of air brake system.
The Correct Answer and Explanation is :
The correct answer is: A low pressure warning device.
A wig-wag is a device used in air brake systems, specifically in vehicles like trucks, buses, and heavy machinery, to warn the driver when the air pressure in the brake system drops below a safe level. It is an essential safety feature that alerts the driver of a potentially dangerous condition, helping prevent brake failure due to insufficient air pressure.
Explanation:
The term “wig-wag” refers to a warning device that activates when the air pressure in the brake system falls below a preset threshold. The device works by triggering a visual or audible signal, typically a light or bell, to alert the driver. The signal is often accompanied by a visual indicator that might involve a “wig-wag” style flashing light, indicating the need for immediate attention to the brake system.
In an air brake system, there are typically two main components that rely on air pressure: the service brakes and the emergency or parking brakes. When the air pressure falls too low, it becomes difficult or impossible for the service brakes to operate effectively. The wig-wag system provides a clear and timely warning, allowing the driver to take corrective action before the vehicle becomes dangerous to operate.
Low air pressure in the braking system can result from various issues, such as leaks in the air lines, malfunctioning compressors, or failure of air tanks to maintain pressure. If not addressed promptly, low pressure could lead to brake failure, which is a serious safety hazard, particularly in heavy vehicles. The wig-wag warning device is a critical safety mechanism that ensures the driver is aware of low pressure before it compromises the braking performance.
In summary, a wig-wag is an essential low-pressure warning device designed to ensure the safe operation of air brake systems in vehicles.