Automotive Quiz PDF

## Multiple Choice Choose the one alternative that best completes the statement or answers the question. 1. A tire is labeled 215/60R x 15 92T; the T indicates * its load rating * its temperature resistance rating * **its speed rating** * its tread wear rating 2. Front-wheel d...

## Multiple Choice Choose the one alternative that best completes the statement or answers the question. 1. A tire is labeled 215/60R x 15 92T; the T indicates * its load rating * its temperature resistance rating * **its speed rating** * its tread wear rating 2. Front-wheel drive vehicles usually use what type of wheel? * Zero offset * Negative offset * Positive offset * **Either A or B** 3. A tire is labeled 215/60R x 15 92T; the 92 indicates * speed rating * tread wear rating * temperature resistance rating * **load rating** 4. A space-saving spare tire usually has *air pressure* than the regular tires. * less * lower * higher * **the same** 5. Which of these is (are) a main function of tires? * Provide friction (traction) between the vehicle and the road * Serve as shock absorbers to cushion the vehicle ride * **Both A and B** * Neither A nor B 6. When purchasing replacement tires, do not change *tire width* from the stock size by more than * 15 mm * **10 mm** * 25 mm * 20 mm 7. After a tire has been assembled by a tire building machine, it is called a *tire*. * **green** * finished * pre-mold * molded 8. The part of the tire that is just under the tread of a radial tire is called the * bead * **belt** * inner liner * body (carcass) ply 9. Hydroplaning can occur at speeds as low as * 40 mph * 55 mph * 45 mph * **30 mph** 10. What do the letters JJ mean in a wheel designation size labeled 14×7JJ? * The offset of the rim * **The shape of the flange area** * The back spacing of the rim * The bolt circle code 11. Most lug nuts are *so that the wheel stud will center the wheel onto the hub.* * chrome * oval * **tapered** * flat 12. Kevlar is the brand name for which fiber used in tire construction? * **Aramid** * Polyester * Nylon * None of these 13. If the center section of a wheel is outward from the wheel center line, it has * reverse offset * zero offset * negative offset * **positive offset** 14. All tires use a tire valve, called a(n) *valve*, to hold air in the tire. * snap-in * inflation * zerk * **Schrader** 15. Some vehicles use lug bolts instead of lug nuts. * **True** * False 16. A defective tire can cause which of the following? * Darting or jumping * Erratic steering * Pulling to one side * **Any of the above** 17. Technician A says that grooves in the tire tread are necessary for excellent dry traction. Technician B says that grooves in the tire tread are necessary for wet traction, to prevent hydroplaning. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * Neither technician A nor B 18. The Uniform Tire Quality Grading System (UTQGS) includes * braking traction performance * temperature resistance * tread wear * **All of the above** 19. The DOT tire code on the sidewall of a tire indicates * the type of tire valve needed * **the week and year of manufacture** * the width of the wheel (rim) * the diameter of the wheel (rim) 20. All radial tires are belted. * **True** * False 21. Technician A says that the bolt circle is the diameter of a circle that can be drawn through the center of each lug hole or stud. Technician B says that lug nuts have different tapers to fit different wheel lug holes. Which technician is correct? * Technician A only * Technician B only * **Both technicians A and B** * Neither technician A nor B 22. Technician A says that all tires sold for passenger vehicle use must be approved by the DOT. Technician B says that the DOT code will indicate the build date of the tire. Which technician is correct? * Technician A only * Technician B only * **Both technicians A and B** * Neither technician A nor B 23. What precautions should the driver of a vehicle equipped with run-flat tires adhere to? * Should not be inflated to more than 10 PSI * Should not be driven over 50 or 55 MPH if the tire has zero PSI * Rapid cornering should be avoided if the tire has zero air pressure * **Both B and C** 24. Technician A says that backspacing is the same as offset. Technician B says that backspacing is the distance between the back rim edge and the wheel center section. Which technician is correct? * Technician A only * **Technician B only** * Both technicians A and B * Neither technician A nor B 25. Which of the following is NOT part of the UTQG system? * Treadwear * Traction * Temperature * **Speed rating** 26. Radial tires can cause a vehicle to pull to one side while driving. This is called “radial tire pull” and is often due to * tread design * bead design * the angle of the body (carcass) plies * tire conicity 27. Technician A says that the load index marked on the tire indicates the maximum load the vehicle can carry. Technician B says that the load index marked on the tire indicates the maximum load each tire is designed to carry. Which technician is correct? * Technician A only * **Technician B only** * Both technicians A and B * Neither technician A nor B 28. Which size lug nut would fit a metric wheel stud? * 7/16-20 RH * **M12 x 1.5** * 7/16-20 LH * 1/2 x 20 29. What tools and supplies are needed to service TPMS? * Tire pressure gauge * Sensor service kit * Tire valve core torque wrench * **All of the above** 30. Technician A says that the tire pressure can be 5 PSI below specification but not turn on the TPMS warning lamp. Technician B says that vehicles with TPMS do not need to have the tire pressure checked monthly. Who is correct? * **Technician A only** * Technician B only * Both technicians A and B * Neither technician A nor B 31. What tools can be used to register the TPMS transmitter ID? * A DMM * The vehicle key fob * A handheld tester * **A factory scan tool** 32. What mode does a direct pressure sensor enter when the vehicle is stopped? * Active mode * Storage mode * **Sleep mode** * Alert mode 33. What does the “delta pressure method” mean? * Using a handheld tester to read the pressure as reported by the sensor * Inflating the tire to the specified pressure * Activate the sensor so it broadcasts the pressure to the scan tool * **Change the inflation pressure** 34. Which tire inflation information should be checked to determine the proper tire inflation pressure? * 32 PSI in all tires * The maximum pressure as stated on the sidewall of the tire * **Cold placard inflation pressure** * Any of the above 35. To ensure accuracy, a mechanical tire pressure gauge should be used with TPMS. * True * **False** 36. If the tire/wheel assembly has a TPMS valve-type sensor, it can usually be identified by the *of the valve stem*. * color * length * diameter * **threaded portion** 37. When a TPMS sensor needs replacement, which of these is NOT an option? * Replace the sensor battery and program it to the vehicle * Replace with an OE sensor * Replace with a programmable aftermarket sensor * **Replace with a multiple protocol sensor** 38. Typical TPMS transmit frequency is * 315 kHz * 434 MHz * 144 MHz * **Either A or B** 39. Technician A says that a tire pressure monitor system that uses a valve-stem-type transmitter is the direct reading type of TPMS. Technician B says that a tire pressure monitoring system that uses a sensor inside and strapped to the wheel with a band is an indirect reading type of TPMS. Which technician is correct? * **Technician A only** * Technician B only * Both technicians A and B * Neither technician A nor B 40. The FMVSS 138 law requires that the driver be notified if the tire inflation pressure drops how much? * 30% * **25%** * 15% * 20% 41. Two technicians are discussing the indirect tire-pressure monitoring system. Technician A says that it was used by some vehicle manufacturers. Technician B says that it uses the speeds of the RF and LR tires and compares the rotating speeds of the LF and RR tires to detect a low tire. Which technician is correct? * Technician A only * Technician B only * **Both technicians A and B** * Neither technician A nor B 42. To activate or learn a direct pressure sensor, what does the service technician need to do? * Enter learn mode and decrease inflation pressure * Enter learn mode and use a magnet * Use a handheld tester * **Any of the above, depending on the vehicle and system** 43. What is the purpose of the TPMS system? * To inflate a low tire if needed * **To detect a tire that has low inflation pressure** * To flash a warning light if a tire with low inflation pressure is detected * All of the above 44 All vehicles sold in the United States must have a tire pressure monitoring system, starting with model year * 2010 * 2004 * **2008** * 2006 45. A tire with lower than *specified inflation pressure* could lead to what condition? * Increased chances of roadside faults or accidents * Reduced tire life * Reduced fuel economy * **All of the above** 46. A tire has a recommended pressure of 32 PSI. The TPMS should light the lamp when the pressure *in this tire* reaches * 27 PSI * 26 PSI * **24 PSI** * 30 PSI 47. Using the modified X-method of tire rotation on a front wheel drive vehicle, where should the *left front wheel* be placed? * **Left rear** * Right front * Right rear * Keep it at the left front 48. Technician A says to check *tire radial runout* to determine the cause of high speed vibration. Technician B says to check *tire lateral runout* to determine the cause of high speed vibration. Which technician is correct? * **Technician A only** * Technician B only * Both technicians A and B * Neither technician A nor B 49. Tire replacement involves all of the following EXCEPT * remove the tire from the rim (wheel) * **remove the TPMS sensor from the wheel** * remove air from the tire * install the tire on the rim (wheel) 50. For best tire life, most vehicle manufacturers recommend *tire rotation* every * 12000 miles * **6000 miles** * 9000 miles * 3000 miles 51. A tire is worn excessively on *both edges*. The most likely cause of this type of tire wear is * excessive axial runout * **underinflation** * overinflation * excessive radial runout 52. When installing a tire pressure monitoring system *sensor on a wheel*, the sensor should be mounted * with the flat part of the sensor facing the center section of the rim * **with the flat part of the sensor parallel to the center section of the rim** * Both A and B * Neither A nor B 53. Compressed nitrogen is sometimes used for *tire inflation* because it holds less moisture than compressed air. * **True** * False 54. Technician A uses silicone lubricant to *seat the bead of a tire*. Technician B uses motor oil to *seat the bead of a tire*. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * **Neither technician A nor B** 55. If a vibration is felt in the steering *wheel above 45 MPH*, the problem is usually out-of-balance *rear tires.* * True * **False** 56. A tire has a nail in the shoulder area. What should the technician do? * Repair the tire with a rubber plug * **Replace the tire** * Repair the tire with a double patch * Install an inner tube 57. When seating a bead of a tire, never exceed *psi*. * 40 * 60 * 30 * **50** 58. Technician A says that the recommended method of tire rotation is side to side. Technician B says that the recommended method of tire rotation is the modified X method. Which technician is correct? * Technician A only * **Technician B only** * Both technicians A and B * Neither technician A nor B 59. Technician A says that a damaged bead can be repaired. Technician B says that *tires with damaged beads* must be replaced. Which technician is correct? * Technician A only * **Technician B only** * Both technicians A and B * Neither technician A nor B 60. The *aspect ratio* of a tire means * the ratio of rolling resistance * **the ratio of width to height** * the ratio of height to width * its width to diameter of a wheel ratio 61. The tire pressure sensor sends a signal to the * BCM * door module * RKE receiver * **Any of these, depending on the vehicle** 62. A valve core torque wrench is needed to service *TPMS tire valves*. * **True** * False 63. Technician A says that *tire pressure* will drop 1 PSI for every 10 degrees drop in *temperature*. Technician B says that the two types of TPMS pressure sensors are snap-in and clamp-in. Which technician is correct? * **Technician A only** * Technician B only * Both technicians A and B * Neither technician A nor B 64. A vehicle with TPMS has the tire pressure warning light on steady. The owner says that all 4 tires have the correct pressure. Technician A says that the *spare tire pressure* could be low. Technician B says that a sensor may be bad. Who is correct? * **Technician A only** * Technician B only * Both technicians A and B * Neither technician A nor B 65. What type of valve core is used in *stem-mounted sensors*? * Nickel plated * Steel * **Aluminum** * Brass 66. A vehicle with TPMS has a flashing TPMS warning lamp. This means * the TPMS has detected a fault with a sensor * the vehicle has a flat tire * Either A or B * Neither A nor B 67. Which one of these valve stems is designed to be used with a *TPMS sensor*? * A * B * Either A or B * Not enough information 68. On a General Motors vehicle, sensor programming starts with which wheel? * Right rear * Right front * Left rear * Left front 69. What is the proper instrument for measuring *wheel runout*? * Vernier caliper * Inside micrometer * Outside micrometer * Dial indicator 70. Proper tire inflation pressure information is found * on the driver's door or post * in the owner's manual * on the sidewall of the tire * Both A and B 71. Technician A says that *inflation pressures vary with outside temperature*. Technician B says that *under-inflated tires cause reduced fuel economy*. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * Neither technician A nor B 72. When balancing a tire/wheel assembly, what should the technician do? * Set up the tire balancer machine with the *location of the wheel as well as the diameter and width* * Use the proper contour weights * Clean the rim flange * All of the above 73. Most vehicle and tire manufacturers recommend that no more than *ounce balance* weight be added to a *wheel/tire assembly*. * 2.5 * 4.5 * 3.5 * 5.5 74. A vehicle vibrates at *highway speed*. Technician A says that water in the *tire(s)* could be the cause. Technician B says that an out-of-round tire could be the cause. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * Neither technician A nor B 75. Lug nuts should be evenly tightened in a *pattern*. * opposing * star * linear * random 76. Which statement *is FALSE*? * A tire out of balance statically can cause a tramp-type vibration * Excessive radial runout can cause a tramp-type vibration * A tire out of balance dynamically can cause a shimmy-type vibration * Excessive lateral runout can cause a tramp-type vibration 77. To save time, technician A uses an impact socket *on an impact wrench* to tighten lug nuts. Technician B tightens lug nuts in a star pattern with a torque wrench. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * Neither technician A nor B 78. The recommended type of *wheel weight* to use on aluminum (alloy) wheels is * lead with plated spring steel clips * coated (painted) or stick-on lead weights * aluminum weights * lead weights with longer than normal clips 79. Anytime a set of *new aluminum wheels* is installed, the lug nuts should be re-torqued after *how many miles*? * 100 * 75 * 50 * 25 80. Technician A says that a vibration *above 45 MPH* indicates a possible out-of-balance tire. Technician B says that a vibration *above 45 MPH* can only be diagnosed if engine load is considered. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * Neither technician A nor B 81. Technician A says that most manufacturers recommend using anti-seize compound on *lug studs* when installing wheels. Technician B says that air impact wrenches are the best tool to tighten lug nuts. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * Neither technician A nor B 82. What lubricant should be used when mounting a tire? * Water-based soap * Silicone spray * Grease * SAE 10W-30 engine oil 83. Technician A says that it is recommended that the *vehicle be driven less than 50 mph for the first 50 miles* to allow the tire to adhere to the wheel. Technician B says that sudden hard acceleration with newly mounted tires can cause *the tire to change position on the wheel*. Which technician is correct? * Technician A only * Technician B only * Both technicians A and B * Neither technician A nor B 84. It is best to mount a tire with the round sticker aligned with the *valve core*. * True * False