What type of bearing is used to support the connecting rod on the crank pin and the wrist pin in high rpm two-

3. What type of bearing is used to support the connecting rod on the crank pin and the wrist pin in high rpm two-stroke engines?


A. Roller bearing


B. Plain bearing


C. Needle bearing


D. Bushing








4. What is the purpose of the fibers in grease?


A. It's the actual lubricating element in the grease.


B. It prevents the lubricant from evaporating.


C. It traps the lubricant and holds it in suspension.


D. It thickens the grease.








5. Which type of outboard motor cooling systems is a variable volume system?


A. Revolving cam pump


B. Plunger pump


C. Impeller pump


D. Pressure vacuum pump








6. A PCV valve is used to control the


A. amount of oil coming out of the oil pump.


B. oil injected on a two-stroke engine.


C. air that enters the crankcase.


D. flow of exhaust gases.








7. The API C classification for lubricating oils pertains to which type of engines?


A. Single-cylinder four-stroke gasoline engines


B. Multicylinder four-stroke gasoline engines


C. Two-stroke gasoline engines


D. Two- or four-stroke diesel engines








8. What additive is added to lubricating oil to help the oil absorb water?


A. Oxidation inhibitor


B. Emulsifier


C. Corrosion inhibitor


D. Improver








9. Which of the following bearing types doesn't have an inner and outer race?


A. Needle


B. Roller


C. Ball


D. Tapered roller








10. Which one of the following oils isn't a multiviscosity oil?


A. 5W-30


B. 10W-40


C. 10W-30


D. 50W








11. Type SA oil is used for


A. highly turbocharged gasoline or diesel engines.


B. light trucks and cars from 1980 to present.


C. engines that operate under mild conditions.


D. light-duty naturally aspirated diesel engines.








12. An impeller pump in an outboard motor uses an impeller made of


A. stainless steel.


B. bronze.


C. synthetic rubber.


D. brass.








13. Water circulates around a water-cooled engine's cylinder head and cylinder inside the water


A. jacket.


B. deflectors.


C. passages.


D. tubes.








14. A thermostat opens to allow coolant flow when what component of the thermostat has expanded?


A. Piston


B. Boot


C. Wax


D. Pressure top








15. A breather is used to


A. vent cylinder head pressure to the atmosphere.


B. balance the pressure at the carburetor of a two-stroke engine.


C. allow clean air to enter the crankcase of the engine.


D. allow pressurized gases to vent from the crankcase.








16. Synthetic lubricants are made of products based on


A. mineral oil.


B. silicon.


C. vegetable oil.


D. graphite.








17. Multipurpose greases use a thickening agent such as


A. short fiber.


B. aluminum fluoride.


C. lithium soap.


D. calcium soap.








18. When you're flushing a cooling system, you should use an approved acid and a


A. neutralizer.


B. retarder.


C. purifier.


D. accelerator.








19. Which one of the following grades is a proper grade of multipurpose gear lubricant?


A. SAE 40


B. SAE 60


C. SAE 80


D. SAE 100








20. Air-cooled engines use what form of heat transfer to remove most of the heat from their cylinder head and cylinder?


A. Conduction


B. Radiation


C. Convection


D. Absorption

What type of bearing is used to support the connecting rod on the crank pin and the wrist pin in high rpm two-
Hey kid. I just checked all of your recently asked questions. Quit wasting your time, and our time. Some of us actually try to help people out here. You need to find some other interest. You obviously have no talent or ability when it comes to automobiles. The answers to all 80 or so questions have to be learned with hands on training. If you don't do the work, you don't get the answers.





Source(s):





Self taught ASE certified tech.

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