ENGINE REPAIR (A1) No. of Questions= 10 Pass mark is - 75 %. You can press the Mark it button at the bottom of the page to have the quiz marked. Please attempt all questions. You need 75% to progress. 1. An intercooler is used on some turbocharged engines because _________. a) It lowers the temperature of the turbocharger b) It cools the air after it leaves the turbocharger c) It cools the lubricating oil for the turbocharger d) It helps to cool the engine coolant 2. An engine equipped with a turbocharger is burning oil (blue exhaust smoke all the time). Technician A says that a defective wastegate could be the cause. Technician B says that a plugged PCV system could be the cause. Which technician is correct? a) Technician A only b) Technician B only c) Both Technician A and B d) Neither Technician A nor B 3. A vehicle runs poorly when the gasoline level in the tank is low. The engine runs okay when the fuel level in the tank is above 1/8 tank. Technician A says that phase paration could be the cause. Technician B says that using a fuel with too much alcohol could be the cause. Which technician is correct? a) Technician A only b) Technician B only c) Both Technician A and B d) Neither Technician A nor B 4. A steel wire brush should be used to clean the gasket surface of an aluminum cylinder head. a) True b) False 5. A strong soap (caustic) used in cleaning engine parts has a ______ pH level. a) High b) Neutral c) Low d) Balanced 6. A matte or satin finish can be achieved using which method of cleaning? a) Ultrasonic b) Vibratory c) Blaster d) Pyrolytic oven 7. Technician A says that most engines equipped with a carburetor or throttle body injection unit use a heated intake manifold to help in vaporization. Technician B says that engines equipped with port fuel injection do not require that the manifold be heated. Which technician is correct? a) Technician A only b) Technician B only c) Both Technician A and B d) Neither Technician A nor B 8. Technician A says that the purpose of the exhaust gas recirculation system is to reburn the exhaust gases to reduce emissions. Technician B says that the exhaust in the EGR system helps prevent high combustion temperatures inside the combustion chamber. Which technician is correct? a) Technician A only b) Technician B only c) Both Technician A and B d) Neither Technician A nor B 9. Technician A says that catalytic converters should last the life of the vehicle unless damaged. Technician B says that catalytic converters wear out and should be replaced every 50,000 miles (80,000 kilometers). Which technician is correct? a) Technician A only b) Technician B only c) Both Technician A and B d) Neither Technician A nor B 10. Technician A says that all valve train parts that are to be reused should be kept together. Technician B says that intake valve springs may be of a different strength than exhaust valve springs. Which technician is correct? a) Technician A only b) Technician B only c) Both Technician A and B d) Neither Technician A nor B Go to top of quiz © 2004 Prentice Hall. All Rights Reserved.
No. of Questions= 10 Pass mark is - 75 %. You can press the Mark it button at the bottom of the page to have the quiz marked.