Describe extension lines.

What will be an ideal response?


Extension lines are thin, dark, solid lines that extend away from an object at the exact places between which dimensions are to be placed.

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When any product containing hydrogen and/or carbon reacts with oxygen to release heat energy, the process is called ____________________.

Fill in the blank(s) with the appropriate word(s).

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The effects of conservation tillage on soil erosion would be more pronounced in fields cropped continuously to corn than in fields cropped to soybean

Indicate whether the statement is true or false

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The pump piston in a hydraulic jack has an area of 0.197 in^2 . The force applied to this piston while the jack is being raised is 350 pounds. How much hydraulic pressure is created by the pump?

What will be an ideal response?

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Why are open compressors often started up for a short time in the off season?

What will be an ideal response?

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