What is the usual color of the tractor-to-trailer service hose?

A. Green
B. Blue
C. Red
D. White


B. Blue

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Match the G-code to the action that will result:

A. Move at the current feed rate in a straight line B. Start the spindle in a clockwise direction C. Rapid movement in a straight line D. End the program E. Turn on absolute programming

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A(n) ____ alarm is required in all new residential construction that contains fuel-fired appliances or has an attached garage.

A. radon B. halon C. ammonia D. carbon monoxide

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A ____ line will make a long, straight line on metal and is best used on large jobs.

A. chalk B. soapstone C. metal scribe D. center punch

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Evaluate the following complex numbers and leave your results in polar form.

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