Details Title: Aut 001 - Chapter 8 Description: Basic Automotive Service and Systems Total Flash Cards: 15 Created: 05/26/2009 21:22:09		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Mechanical Engineering Flashcards
Cards in this set: Term Which of the following statements about ignition systems is NOT correct? 1. The circuit for the spark plug is called the secondary circuit. 2.Distributors are still widely used in automobiles. 3.Spark timing must be adjusted for engine load. 4. Spark timing is either distributor- or computer-controlled. Definition 2.Distributors are still widely used in automobiles. Term The amount of air that an engine can move in one cycle is its displacement. T/F? Definition True Term Which of the following statements about catalytic converters is NOT correct? 1. Water and carbon dioxide are the most common tailpipe emissions. 2. Converters operate at approximately 800 degrees Fahrenheit. 3. Platinum and palladium are used to reduce CO and HC. 4. Unburned fuel is burned off in the converter. Definition 2. Converters operate at approximately 800 degrees Fahrenheit. Term Turbochargers use a belt drive to turn the rotors that compress the incoming air. T/F? Definition False Term Which of the following items is NOT part of the engine subassemblies? 1. Cylinder head. 2. Muffler 3. Engine Block 4. Exhaust Manifold Definition 2. Muffler Term A rotary engine uses a rotor to compress the air/fuel mixture. T/F? Definition True Term Two technicians are discussing engine lubricants. Technician A says that many oil filters have check valves to prevent oil drainback. Technician B says that any oil weight is acceptable for an engine. Who is correct? Definition A only Term Two technicians are discussing engine operation. Technician A says that valve timing is critical to smooth engine operation. Technician B says that ignition timing is critical to smooth engine operation. Who is correct? Definition Both A and B Term Which of the following statements about valve train design is NOT correct? 1. OHC engines have the camshaft above the cylinder head. 2. Many OHC engines have multiple camshafts. 3. OHV engines have more than one camshaft. 4. OHV engines have the camshaft in the block. Definition 3. OHV engines have more than one camshaft. Term Today’s engine design is very different from the original basic engine design from the 1890’s. T/F? Definition False Term Two technicians are discussing automotive power systems. Technician A says that today’s engines operate on different principles than those of the past. Technician B says that today’s engine has more computerized sensors and actuators than did an entire vehicle from the 1980’s. Who is correct? Definition B only Term Two technicians are discussing exhaust systems. Technician A says that exhaust systems were originally designed to clean the exhaust gases. Technician B says that today’s cleaner-running vehicles do not need emission devices. Who is correct? Definition Neither A or B Term Two technicians are discussing engine design. Technician A says that in-line engines have the cylinders in a straight line. Technician B says that V-block motors have cylinders divided into two parallel banks. Who is correct? Definition Both A and B Term Which of the following steps is NOT part of the four-stroke engine process. 1. Exhaust 2. Intake 3. Compression 4. Cool-down Definition 4. Cool-down Term A vehicle power system has become the most complex system in the vehicle. T/F? Definition True