Kentucky CDL Permit Study Guide Questions and Answers Graded A

Kentucky CDL Permit Study Guide Questions and Answers Graded A What is the most important reason for doing a 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, gear box, pitman arm, drag link, steering knuckle, spindle, steering arm, power steering cylinder Name some suspension system defects spring hangers that allow movement of axle from 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 is cracked or broden What three kinds of emergency equipment must you have? Fire extinguisher, spare electrical fuses , warning devices for parked vehicles. What is the minimum tread depth for front tires? For other tires? 4/32" for front tires, 2/32" on other tires Name some things you should check on the front of your vehicle during the walk around inspection? Condition of front axle, Condition of steering system, Condition of windshield, Lights and reflectors. What should wheel bearing seals be checked for? leaks How many red reflective triangles should you carry? 3 red reflective triangles 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. Why put the starter switch key in your pocket during the vehicle inspection? So it cannot be started or running during the walk around inspection Why should you back toward the driver's side? So you can see better backing toward the right side is very dangerous because you cant see as well. 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 from rolling back When backing, why is it important to use a helper? There are blind spots you won't be able to see. What's the most important hand signal that you and the helper should agree on? a signal for STOP What are the two special conditions where you should downshift? before starting down a hill, before entering a curve When should you downshift automatic transmissions? when going down grades/downhill Retarders keep you from skidding when the road is slippery. True or False? False. Retarders help slow a vehicle, reducing the need for using your brakes. When your drive wheels have poor traction, the retarder may cause them to skid. Therefore, you should turn the retarder off whenever the road is wet, icy, or snow covered What are the two ways to know when to shift? Use engine speed (rpm) or road speed (mph) How far ahead does the manual say you should look? 12-15 seconds ahead What are two main things to look for ahead? Traffic and road conditions 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 you place reflectors when stopped on a divided highway? 10 feet 100 feet and 200 feet toward the approaching traffic What three things add up to total stopping distance? Perception distance + Reaction distance + braking distance. = total stopping distance At 55mph it takes 290 feet or 6 seconds. If you go twice as fast, will your stopping distance increase by two or four times? four times 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