Automotive Maintenance Suspension, Steering, and Tires Exam Questions With 100% Correct Answers.

Automotive Maintenance Suspension, Steering, and Tires Exam Questions With 100% Correct Answers. What is the purpose of the suspension system? - answerThe ____________ _____________ helps control the up and down movement of the vehicle. Keeps the tires in contact with the road. Wheel Chocks - answerWedges of sturdy material placed closely against a vehicle's wheels to prevent accidental movement. If the rear axle is jacked off the ground with only the parking brake set, the vehicle may roll on the front wheels and fall. Chocking the front wheels prevents this mishap. Dependent Suspension Systems - answerRigid linkage between the two wheels on the same axle. Independent Suspension Systems - answerAllows wheels to rise and fall on their own without affecting the opposite wheel. What do shocks do? - answerThe __________ contain a gas, fluid, and/or compressed air to reduce the number of oscillations (up and down movements) from uneven roads. How do magnetic ride systems work? - answer________________ ________________ use an electronic current to send a voltage into an electromagnet within the shock absorber. Coil Springs - answer__________ ___________ are common on the front and rear of vehicles and vehicles with automatic leveling systems use compressed air springs. Leaf Springs - answerSemi-elliptical springs and are common on the rear of trucks What is the purpose of the steering system? - answerThe _____________ ____________ controls the directional movements of the vehicle. Hydraulic Power Steering - answerOn a pump, which is commonly driven by a belt on the engine, provides fluid pressure to ease the force required by the operator to turn the steering wheel. It is necessary to periodically check the power steering pump reservoir fluid level. If there is a howling sound when turning the steering wheel the power steering fluid is most likely low. Electric Power Steering (EPS) - answerNot mechanically belt driven. Allows the driver to have power steering even if the vehicle stalls or is shut down intentionally at stops. Using an _____ system increases fuel efficiency by 1-3% by reducing weight and mechanical losses. Being electrical, it also has built-in self diagnosis features What do the letters UTQG represent? - answerUniform tire quality grading When should I lubricate grease fittings/zerks? - answerAt every oil change What are the three UTQG ratings? - answerTreadwear, traction, and temperature All-Season tires - answerWill meet most consumer demands throughout the year. May have a "M+S" (mud and snow) on _______-_______ tires but it is not a _________ ______. Snow tires - answerHave a more aggressive tread and are more flexible, giving them superior traction in the winter. Tire Pressure Monitoring System (TPMS) - answerUsed to alert the driver if any tire is significantly low on pressure. Air gauge - answerA quality ________ ________ can be used to check the pressure in your tires, including the spare, at least once a month. Always check when tires are cold and before long trips What is the repairable area on a tire? - answerOnly small punctures in the tire tread can be repaired safely. What is *NOT* the repairable area on a tire? - answerThe tire sidewall experiences too much stress from expansion and contraction as the tire rotates down the highway and therefore should not be repaired. Get a new tire if this happens. How often should tires be rotated? - answerevery 7,500 miles. Why is it important to torque lug nuts? - answerIt is important to torque the lug nus in a star pattern. Torque refers to getting all the lugs nuts to the same tightness. What can cause abnormal tire wear? - answerUnderinflation, overinflation, worn steering components, worn suspension components, tires out of balance, and tire misalignment. Frame - answerSome vehicles have a ladder type steel frame that runs the length of the vehicle.