What are a ball penetrator and a diamond penetrator used for?

A) A Rockwell "A" and a Rockwell "B" hardness test
B) A Rockwell "C" and a Rockwell "D" hardness test
C) A Rockwell "D" and a Rockwell "E" hardness test
D) A Rockwell "B" and a Rockwell "C" hardness test
E) None of the above


D

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The binary sequence generated by the symbols BAEDC is ______________?

Consider the Huffman code tree given by

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The fleece of the Angora goat is called _____

a. mohair c. cashmere b. wool d. fur

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Cast-iron pipe is commonly used to carry solid and liquid waste as the sewer pipe that connects a structure with a local or regional sewer system. Cast-iron pipe can also be used for the drain system throughout the structure to help reduce water flow noise substantially in the pipes. It is more expensive than plastic pipe but can be worth the price if a quiet plumbing system is desired.

Answer the following statement true (T) or false (F)

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How many refrigerant check valves are used on the solenoid control refrigeration system?

A. 1 B. 2 C. 3 D. 4

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