CDL HW | Commercial Driver License Test
CDL HW | Commercial Driver License Test A commercial motor vehicle's (CMV's) engine controls are used for: * 10 points A. safely operate your vehicle. B. start up and shut down the vehicle's engine. C. warn you when pressures or temperatures reach a dangerous level. D. help you steer, accelerate, brake, and park your CMV. - start up and shut down the vehicle's engine If your truck has a(n) _____, you must first turn the engine key to the 'on' position before engaging it. * 10 points A. starter button B. engine brake C. clutch button D. cruise control - starter button Which clutch position is required to start the engine or shift gears? * 10 points A. Engaged B. Free play C. Disengaged D. Clutch brake - Disengaged Which of the following is a yellow, diamond-shaped knob that allows you to activate the parking brake? * 10 points A. Parking brake control valve B. Trailer air supply valve C. Foot brake control valve D. Trailer brake hand-control valve - Parking brake control valve Secondary vehicle controls: * 10 points A. provide backup functionality to the primary controls. B. shut down the vehicle's engine in an emergency. C. assist you in a safely operating your vehicle. D. all of the above. - assist you in a safely operating your vehicle If your CMV has a _____, the Federal Motor Carrier Safety Regulations (FMCSR) say you must use it. * 10 points A. seat heater B. cruise control C. seat belt D. fog lamps - seat belt Which vehicle instrument measures the voltage in a vehicle's electrical system? * 10 points A. Voltmeter B. Exhaust pyrometer C. Ammeter D. Both A and C - Voltmeter What is a normal operating range for a CMV's oil pressure gauge? * 10 points A. 20-45 psi B. 30-50 psi C. 40-65 psi D. 50-70 psi - 30-50 psi Which of the following warning devices help you to know when exhaust temperatures are abnormal? * 10 points A. Pyrometer warning light B. Coolant temperature warning light C. Differential warning light D. Both A and B - Pyrometer warning light Which of the following warning devices indicates there is inadequate pressure in the air brake system? * 10 points A. Coolant level alarm B. Oil level alarm C. Low pressure warning alarm/light D. Oil pressure warning light - Low pressure warning alarm/light In order to put a commercial motor vehicle on the road, you must first: * 10 points A. complete and sign a DVIR. B. ask a mechanic about the vehicle's condition. C. conduct a thorough pre-trip inspection. D. perform a short test drive to verify safe operation. - complete and sign a DVIR. Before you inspect the engine compartment and front axle components: * 10 points A. verify the parking brakes have been set. B. put the vehicle's keys in the ignition, depress the clutch, and start the engine. C. remove the chocks from the wheels. D. close the hood. - verify the parking brakes have been set. What is the minimum tread depth for the steer-tire? * 10 points A. 2/32 inch B. 4/32 inch C. 6/32 inch D. 8/32 inch - . 4/32 inch What is the only circumstance you are not required to inspect your cargo and load securing devices? * 10 points A. If your load is sealed and you have been ordered not to open it. B. If your vehicle is loaded in a way that makes cargo inspections impossible C. If your destination is less than 100-air miles from your home terminal D. Both A and B - Both A and B When is it appropriate to conduct a post-trip inspection? * 10 points A. Whenever it's most convenient, but before the start of your next day B. The same exact time every evening, regardless of where you are C. At the end of every work day D. Right before 12 midnight, when your next day begins on your driver's daily log - At the end of every work day What items should a post-trip inspection include? * 10 points A. Brakes, steering, and lighting B. Oil and tire pressure C. The same items as the pre-trip inspection except for things affected by heat D. Only items known to be defective. - The same items as the pre-trip inspection except for things affected by heat When do the regulations require drivers of property-carrying CMVs to complete and sign a DVIR? * 10 points A. At the start of their work day for each vehicle they intend to operate during that shift B. Whenever a defect or deficiency is discovered or reported C. When a change of duty status is made, every three hours, or every 150 miles, whichever comes first D. At the end of their work day for any vehicle or equipment they used during that shift - . Whenever a defect or deficiency is discovered or reported If the previous driver found defects and noted them on a DVIR, what must you do before operating that vehicle again? * 10 points A. Ensure that any items listed defective/deficient that may affect the safe operation of the vehicle were repaired. B. The original copy of the DVIR must be received at the carrier's home terminal. C. A Master Diesel Technician must personally certify the vehicle is safe for operation. D. All of the above. - Ensure that any items listed defective/deficient that may affect the safe operation of the vehicle were repaired. What is the very first step you should take when starting a tractor-trailer engine? * 10 points A. Depress the clutch B. Apply the parking brake C. Turn the ignition switch/key on D. Apply the service brakes - Apply the parking brake What is the appropriate cool down period for a tractor-trailer engine? * 10 points A. A cool down period is not necessary B. Between 30-60 minutes C. It depends on the weather (temperature and humidity) D. It varies based on engine type, nature of the trip, and cargo hauled - . It varies based on engine type, nature of the trip, and cargo hauled When setting your tractor-trailer in motion, how can you tell the friction point of your clutch has been reached? * 10 points A. Your RPMs decrease B. Your RPMs increase C. Your RPMs remain the same for a full 5 seconds D. None of the above - Your RPMs decrease After stopping your tractor-trailer: * 10 points A. pump the brakes to charge the air tanks. B. engage the emergency brake. C. maintain enough brake pressure to keep the vehicle stationary. D. both B and C. - maintain enough brake pressure to keep the vehicle stationary. When testing your tractor-trailer hook-up, pull gently against the locked trailer brakes and stop when: * 10 points A. you reach between 100-300 RPMs. B. your tractor does not move for at least 5 seconds. C. your trailer brake button pops out. D. you feel the engine start to drag down. - you feel the engine start to drag down. What is off-tracking? * 10 points A. The amplification of side-to-side movement through the rear of the trailer B. When the rear wheels follow a different path than the front wheels while making a turn C. When the rear wheels of a trailer lock up, causing the trailer to swing around D. When the wheels of a tractor lose traction and the vehicle veers off the road - When the rear wheels follow a different path than the front wheels while making a turn What is essential for you to do when you're making a left turn in an intersection with multiple lanes? * 10 points A. Signal no more than 50 feet in advance. B. Speed up before you make the turn. C. Start in the rightmost lane. D. Begin turning as soon as your cab passes the crosswalk. - Start in the rightmost lane. What factors will determine how much time is needed to get your vehicle up to speed to safely merge with oncoming traffic on a interstate? * 10 points A. The length of the on-ramp. B. The weight of your load. C. The on-ramp's degree of turn. D. All of the above - All of the above What should you do if you are unsure what may be behind your vehicle while backing? * 10 points A. Stop, get out of your vehicle, and check your path. B. Check your mirrors and back quickly before anything can enter your path. C. Stick your head out the window and look back during the entire maneuver. D. All of the above. - Stop, get out of your vehicle, and check your path. What should you do if you cannot easily correct trailer drift (your vehicle is too far out of position) when backing your vehicle? * 10 points A. Find someone to back your vehicle for you. B. Get a qualified spotter to help you get back on path. C. Pull up, reposition the trailer, and start over. D. Turn the tractor around and watch both mirrors. - Pull up, reposition the trailer, and start over. How does your trailer respond when you turn the wheel to the right while backing? * 10 points A. It drifts to the right B. It pushes C. It drifts to the left D. You should never turn your wheel while backing - It drifts to the left What is a key reason backing is so dangerous? * 10 points A. Sticking your head out the window can lead to chronic neck and back pain. B. Backing gives you limited visibility; you will always have a blind spot. C. Backing requires you get out of your tractor; you could be struck by another vehicle. D. Both B and C - Backing gives you limited visibility; you will always have a blind spot. What is the acronym commonly used to remember the safety check you should perform before backing? * 10 points A. GOAL: Get Out And Look B. FIRE: First Inspect Relative Environment C. LAYER: Look Around Your Entire Rig D. SAFE: Stay Away From Emergencies - GOAL: Get Out And Look If you can use a spotter when backing: * 10 points A. responsibility for any incidents that occur transfers to the spotter. B. he/she should be behind your vehicle at all times. C. using a handheld cell phone to communicate with him/her is best. D. you must agree on all hand signals before beginning the maneuver. - you must agree on all hand signals before beginning the maneuver. Which of the backing techniques is fundamental in learning all other backing maneuvers? * 10 points A. Sight-side jackknife backing B. Straight line backing D. Parallel parking All of the above. - Straight line backing What is the key characteristic to alley dock backing maneuver? * 10 points A. Backing while turning into a space that is 90 degrees to the truck B. Backing into a space alongside a dock C. Backing straight down an alley D. None of the above - Backing while turning into a space that is 90 degrees to the truck Which of the following statements regarding blind-side jackknife backing are true? 10 points A. It should never be done without the assistance of a spotter. B. It is best to stop every few feet to check your clearance. C. Ending up with a greater than 90-degree angle is preferred. D. Both A and B. - Both A and B. What backing maneuver should you use if the trailer did not wind up directly in front of the target? * 10 points A. Offset backing B. Sight side jackknife backing C. Blind side jackknife backing D. Alley dock or curved backing - Offset backing What is something typically unique to loading dock areas you must watch out for when backing? * 10 points A. Storage containers and dumpsters B. Clearly marked pedestrian paths C. Unusual clearances around the dock and any nearby barriers D. None of the above - Unusual clearances around the dock and any nearby barriers When backing in a parking lot, take note of the: * 10 points A. location of the sun in the sky relative to your mirrors. B. position of the entrances and exits. C. amount of fuel in your tank. D. reading on your tachometer. - position of the entrances and exits. If your fifth wheel isn't greased properly, it can: * 10 points A. crack the apron. B. create steering problems. C. snap the kingpin. D. both A and B. - create steering problems. If your service line is loose or damaged, you'll: * 10 points A. suffer a serious leak when you apply the brakes. B. increase your stopping distance. C. drain out your air tanks. D. all of the above. - all of the above. Backing under your trailer at an angle can: * 10 points A. push the trailer sideways. B. keep the air lines from getting pinched. C. damage/break the landing gear. D. both A and C. - both A and C. When performing the tug test, when should you stop? * 10 points A. As soon as you feel resistance from the trailer. B. When you hear a squeak from your trailer tires. C. As soon as the trailer brakes pop out. D. When your spotter gives you the proper hand signal. - As soon as you feel resistance from the trailer. What is the safest way to lower and raise your trailers's landing gear in high gear? * 10 points A. Face the trailer and spin the crank handle around your waist. B. Face parallel to the trailer and use two hands. C. Face the trailer, keep your feet apart, and rest one hand on the trailer. D. Face parallel to the trailer and rest one hand on the trailer. - Face the trailer, keep your feet apart, and rest one hand on the trailer. How can you pull the fifth wheel release handle in a way that doesn't put yourself at risk of injury? * 10 points A. Bend at the knees, keep your legs and feet clear of the rear tractor wheels, square yourself up with the handle and pull straight out. B. Pull on the handle with your dominant arm using a zig-zag pattern to loosen the grip. C. Tuck your legs and feet between the rear tractor wheels to get better leverage. D. Grasp the handle with both hands, brace your foot against the tires, and pull. - Bend at the knees, keep your legs and feet clear of the rear tractor wheels, square yourself up with the handle and pull straight out. When positioning the converter dolly for coupling, you should roll the converter dolly up to the rear trailer and stop when: * 10 points A. the fifth wheel is fully under the trailer apron plate. B. the rear trailer kingpin is about a foot from the jaw opening. C. you hear the pintle hook snap into place. D. the fifth wheel makes contact with the front of the trailer apron plate. - the fifth wheel makes contact with the front of the trailer apron plate. When preparing to couple a rear trailer to a converter dolly, the trailer height should be _____ the center of the fifth wheel. * 10 points A. the same height as B. slightly lower than C. slightly higher than D. perpendicular to - slightly lower than How can you ease pressure on the fifth wheel locking jaws before uncoupling your tractor-trailer? * 10 points A. Park on a slight decline when possible B. Chock the trailer brakes C. Lock the trailer brakes and back up gently D. All of the above - Lock the trailer brakes and back up gently When uncoupling the converter dolly, why should you never unlock the pintle hook with the dolly under the rear trailer? * 10 points A. You can unlock the pintle hook with the dolly under the rear trailer. B. The dolly tow bar could fly up, possibly causing injury. C. The trailer could drop. D. The trailer could start to roll. - The dolly tow bar could fly up, possibly causing injury. In a manual transmission, the _____ controls what gear the transmission is in. * 10 points A. clutch B. accelerator. C. shift lever D. brake pedal. - Shift lever When your vehicle reaches the maximum speed for a gear, you must: * 10 points A. upshift. B. downshift. C. pump the brakes. D. push the accelerator. - Upshift When double clutching is done correctly, and the RPMs are matched during the shift, : * 10 points A. It gives you time to determine what gear comes first. B. It enables you to get in a rhythm with the engine. C. It helps you wait for the 500 RPM change before changing hears. D. the gears do not grind. - the gears do not grind. Downshifting early is a common error that may: * 10 points A. make it impossible to get into the next lower gear. B. cause the clutch to burn out. C. allow the engine to rev at a low level, possibly causing the vehicle to stall. D. make the clutch to pop out forcefully. - make it impossible to get into the next lower gear. The purpose of upshifting is to: * 10 points A. match road speed with engine power. B. allow the vehicle to increase speed. C. slow down the vehicle. D. transfer power from the transmission to the engine. - allow the vehicle to increase speed. Proper, smooth shifting is important because if you shift before your vehicle is ready: * 10 points A. your entire tractor-trailer may jerk forward. B. your drive wheels may lock up momentarily. C. you could lose control of your vehicle. D. all of the above. - all of the above. What actions negatively impact your vehicle's fuel economy? * 10 points A. Sitting in too low of a gear (causes the motor to bog down) B. Using double clutching (causes the RPMs to drop too low) C. Downshift too early (causes the RPMs to jump up) D. Using heel-toe acceleration technique (causes gears to slip) - Downshift too early (causes the RPMs to jump up) With an autoshift transmission, if the transmission is in the drive position, : * 10 points A. you will use a button control to shift through all the gears. B. it will shift gears as needed based on speed and load. C. only the top gears will automatically change. D. none of the above. - it will shift gears as needed based on speed and load. What is the primary difference between a manual and semiautomatic transmission? * 10 points A. The top gears automatically change in a manual transmission. B. A semiautomatic transmission does not use a clutch and gearshift lever C. The top gears automatically change in a semiautomatic transmission D. A manual transmission uses electronic controls to help you shift - The top gears automatically change in a semiautomatic transmission What does an automatic transmission use to change gears? * 10 points A. Torque converter B. Range control lever C. Lever or button D. Both A and C - Lever or button Distance scanning helps you: * 10 points avoid abrupt stops. identify hazards only. avoid radical speed changes. all of the above. - all of the above ..................Continue
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