| 1. | Although the word grease originally described the rendered fat of animals, the term is now applied more broadly to mean a lubricant. |
| a. | | True |
| b. | | False
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| 2. | A true grease consists of an oil and/or other fluid lubricant that is mixed with another thickener substance, a soap, to form a solid. |
| a. | | True |
| b. | | False
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| 3. | Which of the following is a use of Grease? |
| a. | | For Lubrication |
| b. | | As a Sealant |
| c. | | To increase Frictional Characteristics |
| d. | | All of the above
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| 4. | Which of the following is the most commonly used grease? |
| a. | | Sodium Based Grease |
| b. | | Calcium based Grease |
| c. | | Lithium based Grease |
| d. | | Magnesium based Grease
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| 5. | A grease has a higher initial viscosity than oil, consisting originally of a calcium, sodium or lithium soap jelly emulsified with mineral oil. |
| a. | | True |
| b. | | False
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| 6. | Gear greases consist of rosin oil, thickened with lime and mixed with mineral oil, with some percentage of water. |
| a. | | True |
| b. | | False
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| 7. | What is the maximum usable temperature of Lithium based Grease? |
| a. | | 50 degree Celsius |
| b. | | 90 degree Celsius |
| c. | | 120 degree Celsius |
| d. | | 150 degree Celsius
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| 8. | Which of the following is added to grease to increase its lubricating capabilities? |
| a. | | Plastic |
| b. | | Teflon |
| c. | | PVC |
| d. | | Bakelite
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| 9. | Grease used for axles are composed of a compound of fatty oils to which tar, graphite, or mica is added to increase the durability of the grease and give it a better surface. |
| a. | | True |
| b. | | False
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| 10. | Which of the following is added to grease to make it usable in low temperatures? |
| a. | | Glycerol |
| b. | | Sorbitan Esters |
| c. | | both a and b |
| d. | | neither a nor b
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| 11. | Which of the following grease can be used to provide lubrication and corrosion resistance? |
| a. | | Laboratory Grease |
| b. | | Silicone Grease |
| c. | | Fluoroether-based Grease |
| d. | | Vaselines
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| 12. | Petroleum jellies, such as Vaseline, are also sometimes called greases, and are commonly used for lubricating food-handling equipment. |
| a. | | True |
| b. | | False
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