California commercial driving test Flashcards You should avoid driving through deep puddles or flowing water, but if you can't, which of these steps can help keep your brakes working?Gently putting on the brakes while driving through water You're driving a vehicle at 55 mph on dry pavement about how much total stopping distance will you need to bring it to a stop?The length of a football field When parked on the side of the road, when you place reflective trains you should Hold the triangles with the reflective side between you and oncoming traffic You're required to stop at a railroad grade crossing whenThe cargo makes a stop mandatory under state or federal regulations If a straight vehicle ( no trailer or articulation) goes into a front wheel skid it will Travel straight ahead even if you turn the steering wheel To determine a person's blood alcohol concentration, you must know How much a person weighs One reason the dry bulk tanks require special careThe load Can shift What is the first thing you should do if your brakes fail while driving down hill Get off the road as soon as possible What is the definition of defensiveThe best drivers are those who watch and prepare for hazards Retarder'sCan cause the drive wheels to skid when They have poor traction You're starting your vehicle in motion from a stop. As you apply power to the drive wheels they start to spin what should you do?Take your foot off the Excelerator Which of the following may be a sign of tire failureWheels fishtailing, sound and vibration Which of these is a good thing to remember about drinking alcohol Alcohol first affects judgment and self-control, which are necessary for safe driving What is the purpose of a retarderhelp slow the vehicle while driving and reduce break wear What should you do if a car coming towards you at night keeps its highbeams on?Look to the right edge of your lane or the right side of the road Which of these statements is true about transporting hazardous materials
- inch diamond shaped hazardous material label must be
on the container You are driving on a slippery road during the day how much space does the commercial driver supplement say you should keep ahead of you Allow much more space than needed for ideal driving conditions When driving in cold weather, your tire tread shouldProvide enough traction to steer and push the vehicle through snow During a vehicle inspection, checking which of the following will help prevent a fire Electrical, fuel and exhaust systems, tires and cargo You do not have a hazMat endorsement on your commercial drivers license. You may drive a vehicle
transporting hazardous material when The vehicle does not require placards
If your brakes get wet while driving on a rainy day, what can happen when you apply the break?Trailer jackknife You're driving a 40 foot vehicle at 35 mph the road is dry and visibility is good what is the least amount of space you should keep in front of your vehicle to be safe Four seconds How do you correct a rear wheel breaking skid when driving on ice or snow Stop accelerating When waiting to pull out into traffic, you should Always wait for the proper gap For first time offense of driving a commercial vehicle under the influence of alcohol or drugs you will lose your drivers license for how many years At least one year You must drive into the oncoming lane to turn, you shouldAllow enough space to get completely across the intersection When should you check your mirrorsRegularly as part of your scan for potential hazards When driving in the mountains, you will have to use lower gears to drive safely down grace. Which of these does not affect your choice of gears?Tire tread type What is the proper way to signal for a lane changeSignal early and change lanes slowly and smoothly Why should you take extra care to keep your vehicle centered in your lane Commercial vehicles are often wider than other vehicles What is counter steeringTurning the steering wheel back in the direction after steering to avoid a traffic emergency When carrying hazardous material placards Must be Placed on all four sides of the vehicle Why is a broken exhaust system dangerous Poisonous fumes could enter the cab or sleeper berth You should know that your brakes are feeding when You have to push harder on the brake pedal to control your speed on a downgrade You're driving at night and you must dim your headlights from high to low what should you do with your speed?Slow down Which of these is a good thing to do when driving at night?Drive slowly enough to stop within the range of your headlights A car suddenly cuts in front of you creating a hazard what should you do Take your foot off the gas to create space do not overreact When you are driving, a hazard isAnyone or anything that may cause an unsafe condition When you are parked at the side of the road at night, you must Turn on your emergency four-way flasher to warn others What is true about Mirror adjustmentsYou should adjust your mirrors before you start a trip Which of the statements about speed management and breaking is true?You need about four times as much stopping distance at 40 mph than you do at 20 mph Which of these systems should receive extra attention during a winter weather inspection Exhaust You're driving a heavy vehicle. You must exit the highway using an offramp the curves downhill what should you do?Slow down to a safe speed before the curve On which fires can you use waterFire fires Which of the following's statements is true about staying alert to drive Sleep is the only thing that can overcome fatigue
The proper method of breaking when going down long and/or steep grades, after selecting the proper gear, is to break into your speed is about ------ miles per hour below your safe speed then release your brakes
- mph
Which of these statements is true about double clutching and shifting You can use the tachometer to tell you when to shift.you could also use road speed or miles per hour When you are passing another vehicle, pedestrian or bicyclist you should assume That they may move into your traffic lane How far should a driver look ahead of the vehicle while driving 12 to 15 seconds Which of these is not a proper time to apply the parking brake When you come down a steep grade and your brakes are very hot Convex or curved mirrors show whatThey show a wider area than that of a flat mirror When must a medical certificate be renewed? Every two years What is the best advice for drivers to follow when A heavy fog occurs Park at a rest area or truckstop until the fog has lifted If you don't have a CB Radio what is the first thing you should do at an accident scene Protect the area notify authorities care for the injured collect required information to report the accident You are driving a new truck with a manual transmission what gear will you probably have to use to take a long steep downhill grade A lower gear that you would use to climb the hill Which of these statements is true about seeing aheadGood driver shift their attention back and forth near and far Implied consent meansYou have given your consent to be tested for alcohol in your blood Types of retarderExhaust, engine, hydraulic and electric. Robotic is not a retarder Which of these is not a proper use of vehicle lightsFlashing your brake lights to stop someone tailgating What is the term for commercial vehicles habit of swinging wide on turns?Off tracking You must sign the previous drivers inspection report only when The defects reported have been repaired When a coolant container is part of a pressurized system, which of these is true?You can check the coolant level of a hot engine When you drive in the mountains, you will have to use lower gear should drive safely down grades which will affect your choice of years Total weight, length and steepness of grade, Road conditions and weather Why must you limit the use of your horn? You can startle other drivers An unsafe vehicle can be put out of service when? Until the driver or owner has it repaired Whatever you double your speed, your vehicle has about ---- times the distractive power if it crashes Four times You are stopped. You want to start driving uphill. You should Partly engage the clutch and then release the parking break Whenever you double your speed, it will take about -----Times as much distance to stop Four times