Texas CDL Class B Quiz

Shut the engine off when you have enough air pressure. 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.

Continue to fan off the air pressure by stepping on and off the brake pedal. 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 in a minute for combination vehicles.

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

<p>Too much heat from excessive use of brakes or misadjustment.</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>Look for puddles on the ground or inspect hoses for condition and leaks.</p> Signup and view all the answers

<p>See that oil level is within safe operating range, above the refill mark.</p> Signup and view all the answers

<p>Pump the brake pedal 3 times, hold it down for 5 seconds, and ensure it does not move during that time.</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 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 totally familiar with all safety and usage features on any in-vehicle electronics, including your wireless cell phone, before you drive, pre-program radio stations, pre-load your favorite CDs or cassette tapes, clear the vehicle of any unnecessary objects, review maps and plan your route before you begin driving, adjust all mirrors for best all-around visibility before you start your trip, don't attempt to read or write while you are driving, avoid smoking, eating and drinking while you drive, and don't engage in complex or emotionally intense conversations with other occupants.</p> Signup and view all the answers

<p>When possible, pull off the road in a safe, legal place when making/receiving a call on communication equipment, if possible turn off the cell phone until you reach your destination, position the cell phone in easy reach, pre-program numbers into your cell phone, if you have to place a call pull off the road to a safe road (do not place a call while you are driving), keep conversations short, do not use the equipment when approaching locations with heavy traffic, or severe weather conditions, do not attempt to type or read messages on your satellite system while driving.</p> Signup and view all the answers

<p>Watch for vehicles that may drift over the lane divider lines or within their own lane, vehicles traveling at inconsistent speeds, drivers who are preoccupied with maps, food, cigarettes, cell phones, or other objects, drivers who appear to be involved in conversations with their passengers.</p> Signup and view all the answers

<p>Aggressive driving is driving the vehicle in a pushy, bold, or selfish manner without regard for the rights of safety of others. Road rage is operating the vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle.</p> Signup and view all the answers

<p>First make every attempt to get out of their way, put your pride in the back seat, avoid eye contact, ignore gestures and refuse to react to them, report aggressive driving to the appropriate authorities by providing a vehicle description of license number, location, and if possible, direction of travel.</p> Signup and view all the answers

<p>Listen to easy listening music, give your drive your full attention, be realistic about your travel time, deal with being late if you will be, give other drivers the benefit of the doubt, slow down and keep your following distance reasonable, avoid gestures, and be a cautious and courteous driver.</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 possible. If not, you should: slow down, place transmission in low gear, gently put on brakes, increase engine RPM and cross the water while keeping light pressure on brakes. When out of water: maintain light pressure on brakes for a short distance to heat them and dry them.</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. When your speed has been reduced approximately 5 MPH below your 'safe' speed, release the brakes. When your speed has increased to your 'safe' speed, repeat the first two steps.</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 its landing gear set to accommodate a 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, as there could be someone passing on your left, or oncoming traffic to the left.</p> Signup and view all the answers

<p>A traffic device that enables vehicles that are having braking problems to safely stop. It is typically a long, sand or gravel-filled lane adjacent to a road with a steep grade, and is designed to accommodate large trucks. The deep gravel allows the truck's momentum to be dissipated in a controlled and relatively harmless way, allowing the operator to stop it safely.</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 yellow malfunction lamps on the trailers. Dollies after 1998 are required to have a lamp on the left side.</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 due to damaged insulation, loose connections, driver smoking, improper fueling, loose fuel connections, flammable cargo, improperly sealed or loaded cargo, poor ventilation.</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 have wandering, disconnected thoughts. You don't remember driving the last few miles. You drift between lanes, tailgate, or miss traffic signs. You keep jerking the truck back into the lane. You have drifted off the road and narrowly missed crashing.</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 &amp; does not obscure your view ahead or to the sides. 4: Knowing your cargo does not restrict your 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>The GCWR is the maximum GCW specified by the manufacturer for a specific combination of vehicles plus its load, whereas the GCW is the total weight of a powered unit, plus trailer(s), plus the 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>The air tanks can have water and compressor oil in them that will freeze when in cold weather 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. If there is a leak in the tank the spring will automatically come on.</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. Each system has its own air tanks, hoses, lines, etc. One system typically operates the regular brakes on the rear axle or axles. The other system operates the regular brakes on the front axle (and possibly one rear axle). Both systems supply air to the trailer (if there is one). The first system is called the 'primary' system. The other is called the 'secondary' system.</p> Signup and view all the answers

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

<p>Proper procedure includes visually inspecting for looseness and ensuring they are functioning correctly.</p> Signup and view all the answers