Florida CDL Knowledge Test Complete Solutions

Florida CDL Knowledge Test Complete Solutions Most important reason for vehicle inspection? ️Safety. What things should you check during a trip? ️Instruments, air pressure gauge, temp gauge, pressure gauge, ammeter/voltmeter, mirrors, tires, cargo/cargo covers, lights. Name some key steering system parts. ️Steering wheel, tie rod, steering shaft, hydraulic fluid reservoir, gearbox, pitman arm, drag link, steering knuckle, spindle, steering arm, power steering cylinder. Name some suspension system defects. ️Spring hangers that allow movement of the axle from the proper position, cracked or broken spring hangers, missing or broken leaves in any leaf spring, leaking shock absorbers, air suspension systems that are damaged and/or leaking, any parts of the suspension or frame that are cracked or broken. What 3 kinds of emergency equipment should you have? ️Fire extinguisher, 3 reflective triangles, spare fuses. What is the minimum tread depth for tires? ️4/32-inch front; 2/32-inch rear. Things to check on the front of the vehicle during a walk-around inspection. ️Front axle, steering system, windshield, wipers, lights and reflectors. What should wheel bearing seals be checked for? ️Leaks. How do you test hydraulic brakes for leaking? ️Pump the brake pedal 3 times and then hold pressure for 5 seconds; the pedal should not move. Why put the starter switch key in your pocket during pre-trip inspection? ️For your safety. Why should you back toward the driver's side? ️So you can see better. If stopped on a hill, how can you start without rolling back? ️Partly engage the clutch before you take your foot off the brake; put on the parking brake whenever necessary to keep from rolling back. When backing, why is it important to use a helper? ️Because there are blind spots you can't see. What's the most important hand signal that you and the helper should agree on? ️Stop. What are 2 special conditions where you should downshift? ️Before starting down a hill; before entering a curve. When should you downshift an automatic transmission? ️When going down grades. Retarders keep you from skidding when the road is slippery. T/F? ️False. What are the 2 ways to know when to shift? ️Engine RPMs or road speed. How far ahead does the manual say you should look? ️12 to 15 seconds. What are 2 main things to look for ahead? ️Look for vehicles coming onto the highway, into your lane, or turning. Watch for brake lights from slowing vehicles. What's your most important way to see the sides and rear of your vehicle? ️Mirrors. What does "communicating" mean in safe driving? ️Signaling your intentions. Where should your reflectors be placed when stopped on a divided highway? ️10 feet, 100 feet, and 200 feet toward the approaching traffic. What 3 things add up to total stopping distance? ️Perception distance, reaction distance, and braking distance. If you go twice as fast, will your stopping distance increase by 2 or 4 times? ️4 times. Empty trucks have the best braking. T/F? ️False. What is hydroplaning? ️When your tires lose their contact with the road and you have no traction. What is black ice? ️A thin layer of clear ice that you can see the road through. How do you find out how many seconds of following distance space you have? ️Wait until the vehicle ahead passes some landmark, then count off the seconds until you reach the same spot. If you are driving a 30-foot vehicle at 55 mph, how many seconds of following distance should you have? ️4 seconds. You should decrease your following distance if someone is following you too closely. T/F? ️False. If you swing wide to the left before turning right, another driver may try to pass you on the right. T/F? ️True. What is a hazard? ️Any road condition or other road user that is a possible danger. Why make emergency plans when you see a hazard? ️To be prepared if you have to take action in an emergency. What are some tips to follow so you won't become a distracted driver? ️Review maps & make plans before starting out; pre-program radio stations; clear the vehicle of unnecessary objects; don't attempt to read or write while you drive; adjust mirrors before starting. How do you use in-vehicle communications equipment cautiously? ️Position a cell phone in easy reach; pre-program numbers; pull over and stop when possible; hang up in tricky traffic situations. How can you recognize distracted drivers? ️Vehicles drifting into other lanes or traveling at inconsistent speeds, drivers that are preoccupied with objects or passengers. What is the difference between aggressive driving and road rage? ️Aggressive driving is selfish, bold, and pushy, without regard for the safety of others; road rage is acting with the intent to do harm to someone else. What should you do when confronted with an aggressive driver? ️Make every attempt to get out of their way; avoid eye contact; ignore gestures; call the police if you can. What are some things you can do to reduce your stress before and while you drive? ️Listen to relaxing music; be realistic about your travel time; give others the benefit of the doubt. You should use low beams whenever you can. T/F? ️False. What should you do before you drive if you are drowsy? ️Sleep. What effects can wet brakes cause, and how can you avoid these problems? ️Wet brakes can be weak, grab, or pull to one side. Don't drive through deep puddles or running water if you can avoid it; dry brakes with light pressure. You should let air out of hot tires so the pressure goes back to normal. T/F? ️False. You can safely remove the radiator cap as long as the engine isn't overheated. T/F? ️False. What factors determine your selection of a "safe" speed when driving down a long steep downgrade? ️Total weight of the vehicle and cargo, length of the grade, steepness of the grade, road conditions, and weather. Why should you be in the proper gear before starting down a hill? ️To take advantage of the engine braking effect, and spare the brakes. Describe the proper braking technique when going down a long, steep downgrade. ️Apply the brakes just hard enough to feel a definite slowdown; when speed has been reduced to approximately five mph below your "safe" speed, release the brakes; repeat when speed has increased to your "safe" speed. What type of vehicles can get stuck on a railroad-highway crossing? ️Low slung units (car carrier, moving van, possum-belly livestock trailer, single axle tractor pulling a long trailer with its landing gear set to accommodate a tandem axle tractor). How long does it take for a typical tractor-trailer unit to clear a double track? ️15 seconds. Stopping is not always the safest thing to do in an emergency. T/F? ️True. What are some advantages of going right instead of left around an obstacle? ️No oncoming traffic, clear shoulder, won't force someone else into oncoming traffic. What is an "escape ramp?" ️A turn-off, usually located a few miles from the top of a downgrade and marked by signs, that uses soft gravel or other means to slow your speed. If a tire blows out, you should put the brakes on hard to stop quickly. T/F? ️False. 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.