CLASS - Chapter 8 CLEANING ENGINE PARTS Directions A Use a...

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1 Chapter 8 CLEANING ENGINE PARTS Directions: A. Use a pencil and Scantron answer form B. Write your name on the answer form C. Mark the letter choice of the best answer D. Do not write on the test 1. Machinist A recommends caustic degreasers for aluminum. Machinist B recommends caustics for cleaning iron, steel, or aluminum. Who is right? a. A only c. Both A and B b. B only d. Neither A or B 2. Machinist A says that detergent degreasers damage parts made of aluminum. Machinist B says that detergents are safe for cleaning iron, steel, or aluminum. Who is right? a. A only c. Both A and B b. B only d. Neither A or B 3. Machinist A says that solutions with a pH below 7 are "basic." Machinist B says that solutions with a pH over 7 are "acidic." Who is right? a. A only c. Both A and B b. B only d. Neither A or B 4. Machinist A says that bead blasting is safe for cleaning combustion chambers and ports. Machinist B says keep beads out of water jackets and oil passages. Who is right? a. A only c. Both A and B b. B only d. Neither A or B 5. Prior to bead blasting, ___________ parts. a. de-carbonize b. steam clean c. de-scale d. degrease and dry 6. Machinist A says that immersion in alkaline or basic solutions removes rust in water jackets. Machinist B says that immersion in acidic solutions removes this rust. Who is right?
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2 a. A only c. Both A and B b. B only d. Neither A or B 7. Machinist A says that immersion in acids removes oil and grease from castings. Machinist B says that immersion in caustics removes rust and scale. Who is right? a. A only c. Both A and B b. B only d. Neither A or B 8. Cam bearings left in blocks or heads will be damaged if cleaned in a. caustics or cleaning ovens b. detergents c. solvents d. degreasers 9. Machinist A says that to remove deposits in ring grooves, use a ring groove scraper. Machinist B says that segments of the old rings work for this purpose. Who is right?
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CLASS - Chapter 8 CLEANING ENGINE PARTS Directions A Use a...

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