Kentucky CDL Permit Study Guide

Kentucky CDL Permit Study Guide All vehicles with air brakes must have a low air pressure warning signal. True or False? ️True A low air pressure warning signal is required on vehicles with air brakes Coffee and a little fresh air will help a drinker sober up. True or False ️False. Only time will sober you up. Common medicines for colds can make you sleepy. True or False ️True. Describe the proper braking technique when going down a long, steep downgrade. ️ the brakes just hard enough to feel a definite slowdown your speed has been reduced to approximately five mph below your "safe" speed, release the brakes your speed has increased to your "safe" speed, repeat steps 1 and 2 Does it matter where you make a disruptive passenger get off the bus? (Transporting passengers safely) ️Yes. Don't discharge such riders where it would be unsafe for them. It may be safer at the next scheduled stop or a well-lighted area where there are other people. Empty trucks have the best braking. True or False? ️FALSE. The brakes, tires, springs, and shock absorbers on heavy vehicles are designed to work best when the vehicle is fully loaded. Empty trucks require greater stopping distances because an empty vehicle has less traction. Front wheel brakes are good under all conditions. True or False? ️True. Tests have shown front wheel skids from braking are not likely even on ice. How can you check slack adjusters? ️Use gloves and pull hard on the slack adjuster, if the slack adjuster moves more than an inch, it needs adjusting. How can you check that the spring brakes come on automatically? ️Reduce the air pressure in the tank by pumping the brake pedal; the tractor protection valve and parking brake valve should close. This should cause the spring brake to come on. How can you test the low pressure warning signal? ️Shut off the engine with enough air pressure, turn on the electrical power and step on and off the brake pedal until the low air pressure warning signal comes on. How do antilock brakes help you? ️help you avoid wheel lock up and maintain control How do you find out how many seconds of following distance space you have? ️Wait until the vehicle ahead passes a clear landmark, then count off the seconds until you reach the same spot. How do you know if your vehicle has antilock brakes? ️They will have yellow malfunction lamps on the instrument panels and yellow malfunction lamps on the trailers. Dollies after 1998 are required to have a lamp on the left side. How do you know if your vehicle is equipped with antilock brakes? ️Check the certification label for the date of manufacture to determine if your vehicle is equipped with ABS How do you recognize a distracted driver? ️Vehicles that may drift over the lane divider lines or within their own lane. Vehicles traveling at inconsistent speeds. Drivers who are preoccupied with maps, food, cigarettes, cell phones, or other objects. Drivers who appear to be involved in conversations with their passengers. How do you test hydraulic brakes for leaks? ️Pump the brake pedal three times, then apply firm pressure to the pedal and hold for five seconds. The pedal should not move. How do you use in-vehicle communications equipment cautiously? ️When possible, pull off the road in a safe, legal place when making/receiving a call on communication equipment, if possible turn off the cell phone until you reach your destination, position the cell phone in easy reach, pre-program numbers into your cell phone, if you have to place a call pull off the road to a safe road, keep conversations short, do not use the equipment when approaching locations with heavy traffic, or server weather conditions, do not attempt to type or read messages on your satellite system while driving. How far ahead does the manual say you should look? ️12-15 seconds ahead How far from a railroad crossing should you stop? (Transporting passengers safely) ️15-50 feet How is Gross Combination Weight Rating different from Gross Combination Weight? ️- Gross Combination Weight (GCW). The total weight of a powered unit, plus trailer(s), plus the cargo. - Gross Combination Weight Rating (GCWR). The maximum GCW specified by the manufacturer for a specific combination of vehicles plus its load. How long does it take for a typical tractor-trailer unit to clear a double track? ️At least 14 seconds How many red reflective triangles should you carry? ️3 red reflective triangles How often must you stop while on the road to check your cargo? ️Inspect the cargo and its securing devices again within the first 50 miles after beginning a trip. If a tire blows out, you should put the brakes on hard to stop quickly. True or False? ️False, if you have a tire blow out avoid stepping on the brakes unless you absolutely have too. Stepping on the breaks could cause a loss of control. If stopped on a hill, how can you start moving without rolling back? ️partly engage the clutch before you take your foot off the brake, put on the parking brake whenever necessary to keep f