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 mechanical or electronic warning system used primarily in vehicles, such as trains, buses, or large trucks, to alert the driver or others to potential hazards. The term “wig-wag” typically refers to a type of signal that alternates back and forth, often using a visual cue like a light or flag. The system is named after the characteristic “wig-wag” motion, in which the signal moves side to side or alternates between two positions, drawing attention to the warning.
In vehicles, the wig-wag system is used in various safety applications. For example, in older air brake systems used in large trucks or buses, a wig-wag valve was employed to control the application of the brakes. The wig-wag valve allows the driver to monitor the air pressure in the brake system and visually check the status of the brakes. If the air pressure falls below a certain level, the wig-wag mechanism would move, serving as a visible alert to the driver that the air brakes were not functioning properly or that the system was under pressure.
In modern applications, the term “wig-wag” may also be used for lights that alternate or flash on and off to signal warning conditions. In the case of railroads, wig-wag signals are still commonly used as warning devices at railroad crossings. The lights flash back and forth, indicating an approaching train and giving drivers ample time to stop.
Overall, the wig-wag system serves as a vital component for safety, providing a visual or mechanical alert to ensure that people are aware of hazardous situations or equipment malfunctions.