What is a wig wag?
Answers
A type of warning system
A tube used to move air from the compressor to the tanks
A noise made by air brakes when used
A part within the braking unit that allows air to move freely
The Correct Answer and Explanation is :
The correct answer is: A type of warning system.
Explanation:
A “wig wag” is a type of low-pressure warning device used in vehicles equipped with air brake systems, such as large trucks and buses. It signals to the driver that the air pressure in the system has dropped to a dangerous level, usually below 60 PSI. This warning is critical because air brakes rely on sufficient air pressure to function properly. If the pressure falls too low, the brakes may fail, leading to potentially catastrophic outcomes.
Types of Wig Wag Systems:
- Mechanical Wig Wag: This type uses a physical arm that drops into the driver’s view when the air pressure is low. The arm acts as a visual cue, demanding immediate attention to avoid brake failure. Drivers must reset the arm manually, but only after the air pressure is restored to a safe level.
- Electronic Wig Wag: Modern vehicles may use electronic warning systems that simulate the function of a traditional wig wag. These systems often include alarms or lights on the dashboard instead of a physical arm.
Importance of the Wig Wag System:
- Safety Assurance: By alerting the driver to low air pressure, the wig wag helps prevent accidents caused by brake failure.
- Compliance with Regulations: Many transportation authorities require low-pressure warning systems on vehicles with air brakes to ensure road safety.
- Ease of Maintenance: The warning system prompts drivers to address air brake issues promptly, reducing the risk of long-term damage to the braking system.
In conclusion, the wig wag is a crucial safety feature in vehicles with air brakes, emphasizing its role in preventing accidents and maintaining reliable braking performance.