Question

On large buses, when is it common for the low pressure alarm to go off?

1) When the tire pressure is too high
2) When the tire pressure is too low
3) When the engine temperature is too high
4) When the engine temperature is too low

Answer 1

The low pressure alarm on large buses typically goes off when the tire pressure is too low, which can endanger safety and increase wear on the tires.

Step-by-step explanation:

On large buses, the low pressure alarm commonly goes off when tire pressure is too low. This is a safety feature designed to alert the driver that the air pressure within a tire has fallen below a safe level, which can lead to poor handling, increased tire wear, and possibly even tire failure. Maintaining the correct air pressure is crucial for a smooth and safe ride, better gas mileage, and reduced tire wear. Buses, like other vehicles, generally have their recommended tire pressure levels listed in the owner's manual or on a sticker within the vehicle. This alarm is not related to engine temperature but is strictly a measure of the air pressure within the tires.