Of what are the buried pipes usually made?

What will be an ideal response?


polyethylene or polybutylene

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Arrange the following in chronological order: the founding of (A) New York, (B) Massachusetts Bay, (C) Pennsylvania, and (D) Plymouth.

A. C, B, A, D B. B, D, C, A C. A, C, D, B D. D, B, A, C E. A, C, B, D

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If the current position (x,y,z) coordinates are (4,6,7.5) which of the following would result in a rapid move to (2,7,7.5):

A. G00 G91 X-2 Y1 Z0 B. G01 G91 X-2 Y1 Z0 C. G00 G90 X2 Y7 D. G00 G90 X-2 Y1 E. both a and c are correct F. both b and d are correct

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Technician A says that impact sockets have thicker walls than conventional sockets. Technician B says that impact sockets have a black oxide finish. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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When a diode is forward biased it is ________

A) similar to an open switch B) conducting current C) blocking current D) similar to a closed switch E) both B and D

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