CDL CLASS B GENERAL KNOWLEDGE
WITH COMPLETE SOLUTIONS
What is the most important reason for doing a vehicle inspection? - Correct Answer safety for yourself and for other road users.What things should you check during a trip? - Correct Answer Watch gauges for signs of trouble.Tires, wheels and rims. Brakes. Lights and reflectors. Brake and electrical connections to trailer. Trailer coupling devices. Cargo securement devices.Name some key steering system parts. - Correct Answer steering wheel steering wheel shaft steering gear box pitman arm drag link steering ring knuckle spindle steering arms Name some suspension system defects. - Correct Answer string hangers that allow movement of the axle from proper position.cracked our broken leaf spring hangers, missing or broken leaves in a multi-leaf spring or leaves that have shifted so they might hit a tire or other part leaking shock absorbers torque rod or arm, u-bolts, spring hangers or other axle positioning parts that are cracked, damaged or missing.air suspension systems that are damaged and/or leaking. any loose, cracked, or broken missing frame members.What three kinds of emergency equipment must you have? - Correct Answer Safety equipment emergency phone numbers accident reporting kit 1 / 2
What is the minimum tread depth for front tires? For other tires? - Correct Answer 4/32-inch tread depth for front tires, 2/32 inch depth for other tires Name some things you should check on the front of your vehicle during the walk around inspection. - Correct Answer front axle steering system windshield lights and reflectors What should wheel bearing seals be checked for? - Correct Answer leaking.How many red reflective triangles should you carry? - Correct Answer Three red reflective triangles How do you test hydraulic brakes for leaks? - Correct Answer Pump the brakes 3 times apply firm pressure to the pedal and hold for five seconds If the pedal moves there may be a leak Why put the starter switch key in your pocket during the pre-trip inspection? - Correct Answer So that no-one starts the bus while you are pre-tripping.How far ahead does the manual say you should look? - Correct Answer 12-15 seconds, 1 block, 1 mile What are two main things to look for ahead? - Correct Answer stopping lane changes What's your most important way to see the sides and rear of your vehicle? - Correct Answer mirrors What does "communicating" mean in safe driving? - Correct Answer signalling
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