CDL Class B Vehicle Inspection Quiz

Shut the engine off when you have enough air pressure so that the low pressure warning signal is not on. Turn the electrical power on and step on and off the brake pedal to reduce air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 60 psi in the tank.

Continue to fan off the air pressure by stepping on and off the brake pedal to reduce tank pressure. The tractor protection valve and parking brake valve should close when the air pressure falls to the manufacturer's specification.

2 psi in a minute for single vehicles and 3 psi for combination vehicles; when applying 90 or more psi to the brakes, the loss should be 3 psi for single vehicles and 4 psi for combination vehicles.

<p>It will slow down the engine speed and help in continuing normal stopping distances.</p> Signup and view all the answers

<p>Too much heat from using the brakes excessively, and they can also be out of adjustment.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>After each working day.</p> Signup and view all the answers

<p>Use only the braking force necessary to stop safely and stay in control.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Safety</p> Signup and view all the answers

<p>Instruments, air pressure gauge, temp gauge, pressure gauge, ammeter/voltmeter, mirrors, tires, cargo/cargo covers, lights.</p> Signup and view all the answers

<p>Steering wheel, tie rod, steering shaft, hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle, steering arm, power steering cylinder.</p> Signup and view all the answers

<p>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 broken.</p> Signup and view all the answers

<p>Fire extinguisher, 3 reflective triangles, spare fuses.</p> Signup and view all the answers

<p>4/32 inch</p> Signup and view all the answers

<p>2/32 inch</p> Signup and view all the answers

<p>Better visibility</p> Signup and view all the answers

<p>Partly engage the clutch before you take your foot off the brake; put on the parking brake whenever necessary to keep from rolling back.</p> Signup and view all the answers

<p>There are blind spots you won't be able to see.</p> Signup and view all the answers

<p>STOP</p> Signup and view all the answers

<p>Before starting down a hill, before entering a curve.</p> Signup and view all the answers

<p>When going down grades.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>RPMs or speed</p> Signup and view all the answers

<p>12 to 15 seconds</p> Signup and view all the answers

<p>Look for vehicles coming onto the highway, into your lane, or turning; watch for brake lights from slowing vehicles.</p> Signup and view all the answers

<p>Mirrors</p> Signup and view all the answers

<p>Signaling your intentions</p> Signup and view all the answers

<p>10 feet, 100 feet, and 200 feet toward the approaching traffic.</p> Signup and view all the answers

<p>Perception distance, reaction distance, braking distance.</p> Signup and view all the answers

<p>Four times</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Tires 'water-skiing' across the road; tires lose their contact with the road and have little or no traction.</p> Signup and view all the answers

<p>A thin layer of ice that you can see the road through.</p> Signup and view all the answers

<p>1 second for every 10 feet of vehicle length under 40 mph; over 40 mph add a second per 10 feet.</p> Signup and view all the answers

<p>Five</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Any road condition or other road user that is a possible danger.</p> Signup and view all the answers

<p>To be prepared if you have to take action in an emergency.</p> Signup and view all the answers

<p>Review and be familiar with all in-vehicle electronics, pre-program radio stations, clear the vehicle of unnecessary objects, review maps and plan your route before driving, adjust mirrors for visibility, don’t attempt to read or write while driving, avoid smoking, eating, drinking, and engage in complex conversations.</p> Signup and view all the answers

<p>Pull off the road when making/receiving a call; keep conversations short; don’t use equipment when approaching heavy traffic or bad weather.</p> Signup and view all the answers

<p>Watch for drifting vehicles, inconsistent speeds, drivers preoccupied with objects, or engaging with passengers.</p> Signup and view all the answers

<p>Aggressive driving is pushy or selfish driving; road rage is driving with the intent to harm others.</p> Signup and view all the answers

<p>Get out of their way, avoid eye contact, ignore gestures, report to authorities if necessary.</p> Signup and view all the answers

<p>Listen to music, give full attention to driving, be realistic about travel time, keep a reasonable following distance, avoid gestures, and be courteous.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Sleep</p> Signup and view all the answers

<p>Wet brakes will be less effective. Avoid by not driving through deep puddles. If unavoidable, slow down and maintain light pressure while crossing.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Total weight of vehicle/cargo, length of grade, steepness of grade, road conditions, weather.</p> Signup and view all the answers

<p>Because you will not be able to downshift after your speed has already built up.</p> Signup and view all the answers

<p>Apply brakes just hard enough to feel a definite slowdown; release when speed is reduced approximately 5 MPH below 'safe' speed.</p> Signup and view all the answers

<p>Low slung units (lowboy, car carrier, moving van, possum-belly livestock trailer); single-axle tractor pulling a long trailer with landing gear set for tandem-axle tractor.</p> Signup and view all the answers

<p>More than 15 seconds</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>There is usually no one in the shoulder of the road; fewer risks from passing traffic.</p> Signup and view all the answers

<p>A traffic device that enables vehicles with braking problems to safely stop; typically a long, sand or gravel-filled lane adjacent to a road with a steep grade.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>They will have yellow malfunction lamps on the instrument panels and trailers.</p> Signup and view all the answers

<p>Use only the force necessary to stop safely and stay in control.</p> Signup and view all the answers

<p>Help you avoid wheel lock-up and maintain control.</p> Signup and view all the answers

<p>Protect the area, notify authorities, and care for the injured.</p> Signup and view all the answers

<p>Under-inflated tires and duals that touch.</p> Signup and view all the answers

<p>Fires in combustible metals, wood, paper, ordinary combustibles.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Spilled fuel, improper use of flares, under-inflated tires and duals that touch, short circuits, driver smoking, improperly fueling, loose fuel connections, flammable cargo.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Stop at a safe place and sleep.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo.</p> Signup and view all the answers

<p>They are used to warn others of hazardous materials.</p> Signup and view all the answers

<p>A building up of lack of sleep.</p> Signup and view all the answers

<p>Your eyes close or go out of focus by themselves; you have trouble keeping your head up; you can't stop yawning; you drift between lanes.</p> Signup and view all the answers

<p>1: Inspecting your cargo. 2: Recognizing overloads &amp; poorly balanced weight. 3: Knowing cargo is properly secured. 4: Knowing your cargo does not restrict access to emergency equipment.</p> Signup and view all the answers

<p>Within the first 50 miles after beginning a trip.</p> Signup and view all the answers

<p>GCWR is the maximum weight specified by the manufacturer for a specific combination of vehicles plus its load; GCW is the total weight of the vehicle plus trailer(s) and cargo.</p> Signup and view all the answers

<p>Bridges and going up or down steep grades.</p> Signup and view all the answers

<p>It can make the steering axle too light to steer safely.</p> Signup and view all the answers

<p>Two</p> Signup and view all the answers

<p>Two (one for every 10 feet of load)</p> Signup and view all the answers

<p>To protect people from spilled cargo and the cargo from weather.</p> Signup and view all the answers

<p>Check that you do not exceed gross weight and axle weight limits.</p> Signup and view all the answers

<p>To remove water and compressor oil that can freeze and cause brake failure.</p> Signup and view all the answers

<p>It shows how much air pressure you have in your tank.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Spring brakes are a backup braking system for the air brakes.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>It has two separate air brake systems, which use a single set of brake controls.</p> Signup and view all the answers

<p>They determine how hard you have to press on the brakes to have them engage.</p> Signup and view all the answers

<p>By visually inspecting them to ensure they are functioning correctly.</p> Signup and view all the answers