What is the purpose of escape ramps? Escape ramps are designed to stop commercial vehicles if the vehicle loses braking capabilities while going down a mountain or long downward grade. These ramps work two different ways. The vehicle either sinks in loose gravel or sand, or the ramp is inclined so that the vehicle travels up the hill, stopping …
What impact do high winds have on tractor-trailers? High winds are an extreme driving condition, whether in the mountains or across flat surfaces, and have a definite impact on the vehicle. Winds can impact your speed and how much control you have of your vehicle. High winds can even topple a tractor-trailer, especially if the trailer is either empty or has …
What is the purpose of auxiliary brakes and speed retarders? Auxiliary brakes and speed retarders reduce the trucks speed without using the service brakes. This saves wear and tear on the brakes. Both help control the truck on long downhill grades. The four basic types of auxiliary brakes and speed retarders are: Engine brakes (also referred to …
What is unique about mountain driving? Gravity plays a tremendous role when driving in the mountains. When driving uphill, the RPM falls and you will need to downshift to a lower gear. Gravity will cut down on your speed during the downshift. You must complete those shifts quickly. Always move your rig to the far right lane. Some states …
How does hot weather affect the preparation of a tractor-trailer? Things to check when making a trip in hot weather: All systems should be checked to ensure everything is in working order Tires need to be inflated correctly and evenly Check your oil level and engine coolant system Check the engine belt tension Check all of the hoses for cracks …
What are the causes of reduced visibility, and what is the impact for a truck driver? Poor visibility can be reduced if there is ice and snow build up on windows and mirrors. Stop and clean your windows and mirrors. Check your lights and reflectors at the same time to be sure there is not ice or snow build …
When and how do drivers use tire traction chains? When driving on snow or ice, using chains can increase traction by as much as 500 percent. Some states have specific laws governing the use of chains. Warnings on Road signs may indicate “chains advised.” Are there fines if I do not use chains properly or as required? Yes. States …
How does cold weather effect the starting of your engine? All engines are more difficult to start in lower temperatures. There are devices that can be helpful: Ether –can be helpful because it ignites easily. However, most carriers will not permit ether being used in their vehicles because if not used properly can cause damage to the engine. Glow plugs …
What does the term extreme driving conditions mean in trucking? Extreme driving conditions are the worst conditions that drivers have to drive through. This can mean snow, sleet, rain, ice, high winds, fog, extreme dry or extreme heat. This would include driving across mountain ranges and through the desert. What are major safety hazards that drivers experience in extreme conditions? Reduced traction, poor visibility …
What is the purpose of escape ramps? Escape ramps are designed to stop commercial vehicles if the vehicle loses braking capabilities while going down a mountain or long downward grade. These ramps work two different ways. The vehicle either sinks in loose gravel or sand, or the ramp is inclined so that the vehicle travels up the hill, stopping …
