Kansas CDL Questions and Answers

Kansas CDL Questions and Answers Over-the-road drivers work with dispatchers, but city PUD drivers don't. false A yard goat is __________. a special tractor used by hostlers Today's trailers are shorter and narrower than older trucks, to save on fuel. False Federal and state governments pay about nine billion dollars in taxes and fees each year to support the trucking industry. False Drivers never get involved in sales. False The trucking industry employs more people than any other private industry in the United States. True Deregulation of the industry made it even easier to get several different driver's licenses from different states. True Many PUD drivers start their career as over-the-road drivers True Advances in communications such as __________ have made for more efficient pickup and delivery. mobile phones and satellite communication Which is not a future trend of the trucking industry? reduced demand for drivers All trucks with air brakes have __________. a low air warning device You have started the engine. If the oil pressure does not come up within seconds, you should __________. shut off the engine at once The needle on the water temperature gauge will point to __________degrees when the engine has reached normal operating temperature. 165-185 When in the out or emergency position, the red trailer air supply valve prevents the loss of tractor air pressure by closing __________. the tractor protection valve The term given to limiting the number of rpm your engine is able to turn is called __________. Governed Speed The primary and secondary air pressure gauges show the psig available in the reservoirs for braking power. True The low air pressure warning light will come on if the air pressure in the system drops below __________ psig. 60 As you look at different truck dashboards, you will find similar gauges, knobs, and switches laid out in __________ patterns. Different Gauges and warning lights on the dash monitor only the operating condition of the engine. False The dash-mounted parking brake valve knob is diamond shaped and red. False In the sliding gear transmission, the __________ gears slide on their shaft. output shaft The main advantage of multiple countershafts is they __________. increase transmission life Truck transmissions are available in automatic as well as manual. true The input shaft and the output shaft are never parallel to each other. true A gear ratio always describes the gear doing the driving acting upon the gear being driven. true The transmission is __________ that transmits the power from the engine through the driveline to the driving axles, the wheels, and the tires. an assembly of gears and shafts A five-speed main transmission with a range control and a splitter will have __________ speeds. 13 The __________ always turn together. countershaft gear and the reverse idler gear A transmission with a range control will always have a splitter. False The most speed is produced with a __________ gear ratio. 1;1 Brake failures __________. are the leading mechanical cause of accidents If __________, nothing will happen until you apply the brakes. a service brake air line ruptures The four factors of the basic theory of braking are heat, weight, speed, and __________. Friction The purpose of the service brake system and the emergency brake system is to __________. slow, stop, and park the vehicle in a predictable, controlled way The slack adjuster twists. This twisting action turns the brake camshaft, turning the S cam. False Circuit breakers and fuses protect the circuit from __________. overloaded circuits Most trucks have a basic 24-volt system. False Once the engine has started, the __________ supplies the power that keeps the battery charged and runs the truck's systems. alternator The 12-volt circuit connects all the batteries in parallel. True The starters job is to __________. crank the engine The __________ uses a voltage regulator that has two separate electromagnets. alternator Wire is sized according to its length. False __________ circuits account for most electrical problems. Open __________ refers to the specified amount of electric current that is produced and carried by the wires. Amperage The main part of the engine is the __________. cylinder block The job of the __________ system is to control the engine's temperature and prevent overheating. cooling The oil gets dirty largely because of __________. the by-products of combustion The __________ dampens the vibration of combustion and is engaged by the starter when you start the engine. flywheel Installed near the top of the piston, the oil rings make the piston fit the cylinder wall so that compression is created and maintained. False The weight of the vehicle is supported by the __________. suspension system The three main parts of the __________ axle are the axle halves, the axle housing, and the differential. drive The __________ is a gear mechanism that transmits power from the drive shaft to the axles. It splits the drive axle in half and then lets each axle half turn at a different speed than the other. differential The __________ is the foundation of the truck. frame When you press down the clutch pedal, you __________. disengage the clutch, thereby stopping power flow at the flywheel The air ride suspension system constantly adjusts itself as you load and unload to maintain correct vehicle height. True The __________ is the mechanical component that allows the engine to be connected to, or disconnected from, the transmission. clutch __________ refers to all the individual components that connect the transmission to the differential. Driveline The __________ is a flexible coupling used to transfer the rotary motion between one rotating shaft and another while allowing for changes in the driveline operating angle. U-joint The __________ does the same thing the axle differential does, but between two axles rather than between two axle halves. inter-axle differential The power steering system uses air pressure to assist steering. False __________ describes a steering axle assembly wherein the distance between the toes of the tires is less than the distance between the heels of those tires. Toe in A tractor with a set-back axle __________. has a tighter turning radius __________ describes a steering axle assembly wherein the distance between the toes of the tires is greater than the distance between the heels of those tires. Toe out __________ describes how the tire leans in relation to the truck. Camber __________ is the position of the tire in relation to the steering knuckle kingpin. Caster Improper inflation is a leading cause of tire damage. True Radial tire construction provides less support for the tread than does bias ply type construction. False The number and letter combination 295/75 R 22.5 is an example of __________ designation labeling. series To prevent folds and creases in a tire tube, which cause it to leak, make sure the mechanic __________ when mounting your tube-type tire. pre-inflates the tube Tread measurements must be taken in a __________. major tire groove __________ consist of separate layers of rubber cushioned nylon cord and make up the body of the tire. Plies __________ refers to tire strength, which is rated from A to Z, Z being the strongest. Load range __________ tires wear rapidly at the center of the tread. Overinflated A typical fuel-saving add-on device is __________. a wind deflector For hauling extremely heavy equipment, a tractor must have __________. a heavy-duty differential The cab guard is required by law when the __________. flatbed being pulled has no bulkhead The COE enjoyed greater popularity __________. before 1982 The device that helps cut vehicle power and slow the truck is the __________. engine retarder The distance between the rear drive axle and the center of the steering axle is the __________. wheelbase The single-axle tractor is ideal for __________. lightweight cargo The truck tractor __________. consists of the power unit In a tractor, aluminum, fiber glass and plastic are used to __________. reduce the tractor's weight The basic difference between on-road and off-road tractors is that __________. off-road tractors are built to withstand more abuse Although an onboard electronic log book is more efficient and more accurate, experienced drivers say it's easier to do log books by hand. False An onboard computer that monitors idling time can help a __________. driver improve performance Drivers with electronic log books still need to know how to fill out a log book by hand. True Even the simplest onboard computer can read and record data from all the truck's systems. False In __________, computers are used to write letters and generate promotional materials. Sales The computer is a more efficient way to take care of paperwork, but it's also more costly. False The part of the onboard computer that stores the data is called the __________. recorder