Which type of compressor utilizes pistons, cylinders, and valves to accomplish the compression of the refrigerant?
A. reciprocating
B. rotary
C. screw
D. scroll
Answer: A
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Mr. Roberts built a levee averaging 1.6 feet high, 4.4 feet wide, and 8,675 feet long. He used an earth scraper with a capacity of 9 yards to help build the levee. To get the dirt, he lowered the field 6 inches with the scraper.
a. Express the yards of dirt in the levee using scientific notation with one decimal place. b. How many yards of dirt were moved? (Note: Do not forget that the field is lowered.) c. How many trips were made with the earth scraper?
Answer the following statements true (T) or false (F)
1. Taylor S. Frederick developed the theories of scientific management. 2.The goal of scientific management was to increase efficiency and consistency in the workplace 3. The scientific management theory should create a harmonious work environment. 4. Time and motion studies play a major role in the lives of automotive technicians. 5. Every year, automotive manufacturers do time and motion studies on millions of repair operations.
The tetrahedron building unit of a clay crystal contains _____ atoms.
a. 1 aluminum and 6 oxygen b. 1 aluminum and 4 oxygen c. 1 silicon and 4 oxygen d. 1 silicon and 6 oxygen
The only drilled holes that are required when using surface mounted devices are the ones for chassis mounting or feed through between layers.
Answer the following statement true (T) or false (F)