cdl general knowledge and air brakes – ga already passed

cdl general knowledge and air brakes – ga already passed What is the number of feet required to stop a vehicle with air brakes that is traveling 55 mph 450 What is the typical leak rate for a single vehicle with air brakes charged to 120 psi. Psi per minute 2 What could rust around the wheel nuts mean. The nuts might be blank. Loose Missing clamps spaces studs or ligaments mean what. One word. Danger The amount of leaf springs that will put the vehicle out of service. In fraction form. 1/4 How many reflective warning triangles are needed as emergency equipment 3 Before tilting the cab, what should you do. Secure loose things How many minutes should it take for air pressure to build up from 50 to 90 psi 3 What is the typical cutout psi for the air governor? X-x 120-140 What is the typical idling oil pressure? X-x psi 5-20 What is the typical operating oil pressure? X-x psi 35-75 Drivers carrying cargo should check the securement of the load after how many miles after starting a trip. 50 After the initial cargo securement check you should continue to check securement after how many miles. 150 After the initial cargo securement check you should continue to check securement after how many hours. 3 What should you do before entering a curve Slowdown and downshift What four basic types of retarders are there. X, x, x, x Exhaust, engine, hydraulic, electric Should a retarded be used whenever roads are wet icy or snow covered? Yes or no No How many seconds do most good drivers look ahead. x-x seconds 12-15 At low speeds about how far should you look ahead. About __ block 1 At highway speeds how far should you look ahead in fraction format. In miles. 1/4 When should you cancel a turn signal. During or complete. Complete Should you help to direct traffic while driving by signaling to other drivers when it is safe to pass, etc. Yes or no. No What three factors make up the total stopping distance for a vehicle with hydraulic brakes. X, x, x Perception, reaction, braking What is the typical reaction distance in feet when traveling 55mph 60 When you double your speed from 20 to 40 mph the impact would be ___ times greater. 4 How many seconds for each 10 ft of truck length do you need to keep in front of you. Add one additional second to the total for speeds over 40 mph 1 What can make it hard to stay in your lane and can be especially bad when coming out of a tunnel Strong winds What should you do if you are not sure you have enough overhead clearance Take another route If there are two turning lanes, which one should you take-- right or left Right How many feet away should you dim your lights for oncoming traffic or traffic that you are following 500 Bleeding tar on hot pavement can make the roadway increases or decreases traction Decreases Once your brakes have failed what will you Have to do. Look outside your vehicle If your abs fails, what should you do before getting the vehicle serviced soon Drive normally What is the first thing you should do at an accident scene Protect the area What is the bac limit for cdl drivers. .04 Should you use cold medicine while driving No How many hours of sleep does the average person need every 24 hour period. X-x 7-8 True or false. Without a hazmat endorsement you cannot drive a vehicle with hazardous material that does not require a placard. False What controls when the air compressor will pump air into the air storage tanks Governor When should you manually drain your air storage tanks. At the end of each day driving At what psi should the safety release valve open on the air tanks. 150 At what psi range will the spring brakes typically be activated. 20-45 What does the braking power of the spring brakes depend on Brakes being in adjustment At what psi must the the low air pressure warning light come on 60 In dual air systems, when the engine is at operating rpms, how long should the air pressure take to build from 85 to 100 psi 45 With air brakes about how many feet will the brake lag distance add to the total stopping distance when traveling at a speed of 55 mph 32