What institution laid down the foundations of the High Middle Ages and European intellectual life?
a. monasteries
b. cathedral schools
c. palace academies
d. universities
b. cathedral schools
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Answer the following statement(s) true (T) or false (F)
1. Both two-stroke and four-stroke engines used in power engine equipment have many moving internal parts that are machined to extremely tight tolerances. 2. Unlike the case of the two-stroke engine, the lubrication system for the four-stroke power equipment engine requires the engine oil and gasoline to be kept separate from each other. 3. Most small power equipment engines are liquid cooled. 4. Ethylene glycol is an excellent coolant when used alone. 5. One tool used to test specific gravity is a refractometer.
A special type of concrete for use in high-temperature applications is _____.
a. no-fines concrete b. self-consolidating concrete c. refractory concrete d. high-performance concrete
Why is backlash required between meshing gears?
A. limits coasting whine B. controls climbing C. allows for heat expansion and lubrication of gears D. all of the above
A solution that has more positive ions than negative ions is __________.
A. acidic B. alkaline