Engineering > QUESTIONS & ANSWERS > Auto Final Exam Questions and Answers 100% Pass (All)
Auto Final Exam Questions and Answers 100% Pass which part is the cylinder head bolted to? ✔✔the block What is the ratio of coolant to water in a typical automotive cooling system? ✔✔50:50 ... Which material are new model cylinder heads made from? ✔✔aluminum Who issues technical service bulletins? ✔✔manufacturers If blue smoke is seen at the tailpipe when an engine is started, which part(s) is/are most likely worn out? ✔✔valve stem seals Technician A says a water pump controls the flow of coolant through an engine. Technician B says an oil filter controls the flow of oil through an engine. Who is right? ✔✔neither Technician A says that all vehicles use the same oil viscosity. Technician B says that using the wrong viscosity oil can damage an engine. Which is right? ✔✔technician b Where would an engine thermostat most likely be found? ✔✔at the engine end of the upper radiator hose If the coolant recovery tank has a hole in it, which is the proper fix? ✔✔replace the tank Which item is designed to keep engine valves closed? ✔✔spring/return spring When changing the engine oil, what should the temperature of the engine be? ✔✔warm What is the minimum recommended time to drain an oil filter before discarding? ✔✔12 hours minimum but usually 24 hours What is a safety concern when servicing the internal combustion engine of a hybrid vehicle? ✔✔High voltage/electrocution Which is the necessary procedure when the heater core is leaking coolant? ✔✔Remove and replace the heater core Which part in the cooling system controls the flow of coolant? ✔✔thermostat A green liquid is found under the front of a vehicle. Which fluid is most likely leaking? ✔✔antifreeze When working on a hybrid vehicle, how many volts should the protective gloves be rated to handle? ✔✔1000 volts When a technician is changing the oil, what should remain on the old filter? ✔✔Square seal stays on, round rubber seal comes off Which part below keeps the engine from overheating? ✔✔water pump How many vehicles have the same VIN? ✔✔none Which engine part does the camshaft move to open cylinder valves? ✔✔lifters Which manual has an area to write service history in it? ✔✔owner's manual Some radiators have two heat exchangers, one for the engine and one for the: ✔✔transmission What closes the valve in a cylinder head? ✔✔spring/return spring Where should the technician find the oil change reset procedure for a vehicle with an electronic oil change warning system? ✔✔owner's manual/ shop key While driving down the highway, Mary notices a check engine light on the dash. Which most likely caused the light to come on? ✔✔Bad/ faulty O2 sensor Which part belongs inside a cylinder head? ✔✔valve stem seal Which should be the last step in an engine oil change? ✔✔reset oil light Why are radiator caps pressurized? ✔✔To raise boiling point of coolant When a technician is pressurizing a cooling system, how much pressure should be applied? ✔✔The amount stated on radiator cap Which type of fluid most likely goes into a vehicle's engine? ✔✔10w30 If the exhaust manifold on a vehicle is rusty, what should be done? ✔✔nothing If the check engine light is on for a vacuum leak, which type of inspection would a technician perform first? ✔✔visual inspection What color is associated with diesel exhaust fluid? ✔✔blue Which part below is a component in the EVAP system? ✔✔fuel tank Which name is commonly used when discussing diesel exhaust fluid (DEF)? ✔✔AdBlue A routine 5,000-mile-interval inspection includes checking the: ✔✔air filter What is the most likely cause of a rattling sound coming from the underside of a vehicle? ✔✔loose exhaust heat shield Which components below are part of the EVAP system? ✔✔charcoal canister, purge valve, vent solenoid Which is the federal mandated warranty period for catalytic converters? ✔✔8 yrs/80,000 miles Extremely dirty air filters can cause: ✔✔poor engine performance What system is being talked about when a technician says "EVAP"? ✔✔Evaporative emissions If a driver continues to ignore the dash warning message to refill a diesel vehicle with diesel exhaust fluid (DEF), what will be the end result? ✔✔Vehicle will be disabled Diesel exhaust fluid (DEF) is to be added to a new model diesel vehicle. The cap on the DEF reservoir/bottle is normally: ✔✔blue If a vehicle has been run without the proper air filter, which part would most likely be damaged? ✔✔piston ring Where would a cabin air filter most likely be found? ✔✔inside the passenger area If a tailpipe has a rusted hole in it, which is the proper procedure to repair it? ✔✔replace the assembly Front-wheel-drive vehicles have: ✔✔transaxles Which type of fluid goes in an automatic transmission? ✔✔ATF On a rear-wheel-drive truck, which component transfers power from the transmission to the rear axle? ✔✔driveshaft An automatic transmission experiences a mild leak of fluid at the pan gasket. Technician A says a leak-stopping additive may be added to stop the leak. Technician B says to use RTV sealant at the leak area to stop the leak. Who is right? ✔✔neither a nor b If fluid is leaking from around the automatic transmission pan, what should be replaced? ✔✔the gasket Which engine part transfers torque to the transmission flywheel? ✔✔crankshaft If a vehicle is leaking fluid from the transmission bell housing, which is the most likely cause? ✔✔front pump seal How many CV joints are on a front-wheel-drive CV axle? ✔✔2 How often should automatic transmission fluid be changed in a vehicle? ✔✔per the specifications Technician A says that all automatic transmission fluids (ATF) are interchangeable. Technician B says that new ATF should be pink in color. Who is right? ✔✔neither a nor b Technician A says that a leaking transmission line may be found by using a dye. Technician B says that a transmission leak would likely appear as a red fluid. Who is right? ✔✔both a and b Which part in the drivetrain connects the transmission to the rear differential? ✔✔driveshaft Where would a technician find the manufacturer's specification for changing automatic transmission fluid? ✔✔in the vechicle owner's manual Which would be removed on a vehicle transmission/transaxle without a dipstick to check the fluid level? ✔✔plug When a technician checks the fluid level in an automatic transmission/transaxle and the vehicle has a dipstick, most vehicle gear selectors will be in: ✔✔park Which fluid color would indicate an automatic transmission/transaxle leak? ✔✔red On a vehicle with a manual transmission, which square pedal is the clutch pedal? ✔✔left Where should a technician look to find out what type of fluid to put in a clutch master cylinder? ✔✔service manual Which of the following is true about the fluid used in a transfer case? A. It may be the same as the fluid used in automatic transmissions. B. It may be the same as the fluid used in manual transmissions. ✔✔Both A and B are correct. While checking the fluid level on a manual transmission, the technician notices the fluid has gold metal flakes in it. Which is the most likely cause? ✔✔synchronizer wear Which type of fluid do most clutch master cylinders use? ✔✔brake fluid Which is a concern when one is changing a clutch disc? ✔✔asbestos What fluid would most likely go in a rear differential? ✔✔75w A vehicle with a manual transaxle is hard to shift. Technician A says that the shift linkage may be misaligned. Technician B says the hydraulic clutch reservoir may be overfilled. Who is right? ✔✔technician a only If a hydraulic clutch pedal has no pressure, what may be leaking? ✔✔slave cylinder A manual transmission's fluid is being drained and refilled. Technician A says that some manual transmissions use the same type of fluid as that used in engine crankcases. Technician B says that some manual transmissions use the same type of fluid as that in differentials. Who is right? ✔✔both a and b While servicing a manual transmission, the technician notices the fluid is milky looking. Which is most likely the cause? ✔✔Water entered the transmission. A driveshaft universal joint (U-joint) is dry of lubricant and found to be loose. Which is the proper repair? ✔✔Replace the U-joint. How does one check the fluid level on a manual transmission? ✔✔remove the fill plug What transfers power from the engine to a manual transmission? ✔✔clutch disc How many total pedals will a vehicle with a manual transmission have for the driver controls? ✔✔3 What fluid should never be installed in a manual transmission? ✔✔brake fluid Which is the name of a front-wheel-drive manual transmission? ✔✔transaxle A technician notices a leak coming from around the rear of the transmission. Which is most likely leaking? ✔✔output shaft seal What should be removed to check the fluid level in a differential? ✔✔fill plug Manual transmissions/transaxles have a: ✔✔clutch Two technicians are discussing manual transmission fluids. Technician A says all manual transmissions use 80w-90 gear oil. Technician B says some manual transmissions use motor oil. Who is right? ✔✔b only Where would one most likely find the air suspension system disable switch on a vehicle? ✔✔in the trunk Which would be the most likely result of adding the wrong steering fluid to a vehicle with rackand-pinion steering? ✔✔seal failure Installing taller tires on a vehicle would cause the vehicle's speedometer to: ✔✔read slower a tire is found to have a nail hole in sidewall. Which should be done? ✔✔replace the tire If a vehicle is making a whining noise when the steering wheel is turned, what is the most likely cause? ✔✔The power steering is fluid. Any of the following would likely indicate the correct power steering fluid to be used in a vehicle except: ✔✔a parts and labor guide Which noise heard during a scheduled maintenance test-drive would least likely be scheduled for repair? ✔✔wind noise Which is the most likely tool for a technician to use to find a noise traveling through the suspension system? ✔✔chassis ears Where on a tire should a technician test its pressure? ✔✔valve stem Which part in the front suspension is located between the steering gear and the center link? ✔✔pitman arm What type of suspension incorporates the shock absorber and coil spring in one assembly? ✔✔macpherson strut If a rear wheel spindle is bent, which is the best way to repair the spindle? ✔✔replace it Before working on a hybrid vehicle's electrical power steering system, which personal protective equipment should a technician wear? ✔✔insulated gloves rated at 1,000 volts The spindle assembly at the rear of the vehicle shows signs of severe wear. Which could be the cause? ✔✔dry wheel bearings Where would one find the tire information placard on a vehicle listing the recommended tire size and pressure for that vehicle? ✔✔on the doorjamb Which would be the most likely result of under-torquing lug nuts? ✔✔The wheel may fall off It is important to torque wheel lug nuts or bolts to OEM specs, and in the correct sequence, in order to help prevent: ✔✔the brake rotors from warping. What might a technician need to check the operation of brake lights on the rear of a vehicle? ✔✔a helper What part of the drum brake assembly is filled with brake fluid? ✔✔wheel cylinder All of the following are types of brake fluid except: ✔✔DOT 2 What is the most likely cause of brake lights staying on? ✔✔stuck brake light switch Where would one most likely find the master cylinder on a vehicle? ✔✔in front of the brake pedal under the hood When refilling a brake master cylinder, always use: ✔✔OEM-specific brake fluid Which type of brake fluid is synthetic? ✔✔DOT 5 When one is diagnosing a vehicle with vibrating brake pads, which parts are most likely missing? ✔✔anti-rattle chips Where is the red brake warning light located on a vehicle? ✔✔in the dashboard If lug nuts are torqued improperly when wheels are installed, which brake parts could be warped? ✔✔rotors Which part in the drum brake system expands outward against the drum to stop a vehicle when brakes are applied? ✔✔shoes DOT 3 brake fluid can safely be mixed with what other brake fluid type? ✔✔DOT 4 Over torquing lug nuts can cause: ✔✔damage to wheel studs A vehicle's red brake warning light stays on whenever the ignition is on and the engine is running. Any of the following could be the cause except: ✔✔the ABS has a faulty wheel sensor How many connections are required when jump-starting a vehicle using jumper cables? ✔✔4 connections When is the correct time to verify that all the instrument lights function properly? ✔✔Key on engine off dashboard warning lights check Why is it usually difficult to reset maintenance indicators on a vehicle? ✔✔To avoid accidental resets When refilling battery cells, which is the correct product to use? ✔✔distilled water What will happen if one fails to install a memory saver before disconnecting the battery? ✔✔Loose radio settings or alarm settings When handling HID headlight bulbs, which is a safety concern? ✔✔High voltage/electrocution Before a starter is removed from an engine, it is important to: ✔✔disconnect the negative battery cable When windshield wiper blades are torn, which would be the correct fix? ✔✔Replace the wiper blades While servicing a battery, the technician notices it is low on fluid. What should be added to the battery? ✔✔distilled water Where can an owner of a vehicle locate what size fuse is needed for the horn? ✔✔service manual What is the danger of cutting into an orange covered harness on a hybrid vehicle? ✔✔electrocution What supplies electrical power to the vehicle when it is running? ✔✔alternator A fully charged 12-volt automotive battery should have an open-circuit voltage of: ✔✔12.6 volts A lead-acid battery with removable caps should be filled with only: ✔✔distilled water If a vehicle returns to the shop three times with a dead battery, where would one find past repair information of the vehicle? ✔✔vehicle service history Which solution is used to clean and neutralize acid corrosion from battery terminals? ✔✔Baking soda and water Which electrical tool would a technician use to test for the presence of voltage at the headlights? ✔✔test light What is the purpose of the battery hold-down? ✔✔hold the batter secure Which part of the electrical system is designed to keep the circuit from being destroyed in case of a short? ✔✔fuses When one is jump-starting a vehicle using jumper cables, what location would be the safest to make the last connection? ✔✔negative cable A customer complains the right rear brake light is out. What is the most likely cause? ✔✔blown bulb Which color is the high-voltage wire on a hybrid vehicle? ✔✔orange During an exterior vehicle inspection, a rear stop light is found to be inoperative. Technician A says a blown bulb could be the cause. Technician B says that poor connection at the bulb socket could be the cause. Who is right? ✔✔both technicians When performing a service on a hybrid vehicle, what color is the high-voltage disconnect? ✔✔orange There is plain water dripping on the passenger's feet in a vehicle, which is the most likely cause? ✔✔The evaporator drain is plugged up. Which chemical below makes the air cold in an automobile air conditioner? ✔✔refrigerant Which air conditioner component is located directly in front of the radiator on a vehicle? ✔✔condenser In a hybrid vehicle, what keeps the high-voltage batteries from overheating? ✔✔blower motor Which system uses a confined gas to cool the passenger area of the vehicle? ✔✔HVAC What is the name of the heating part that changes the airflow from the foot area to the vent area? ✔✔blend/mode door When an independent garage replaces a failed catalytic converter, how long must they keep the old converter at the garage? ✔✔15 days On a hybrid vehicle, which type of voltage powers the air conditioner compressor? ✔✔high voltage If a cabin air filter is to be replaced, it may be located either under the dashboard or: ✔✔inside the engine compartment. [Show More]
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Automotive Bundled Exams Questions and Answers (2022/2023) (Already Passed)
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