What is the difference between a short circuit and on open circuit?

What will be an ideal response?


An electrical circuit that contains a source and path without a load is called a short circuit. A short circuit causes overheating of the source and conductor. A circuit that contains a source and load without a path is called an open circuit. An open circuit does not operate.

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What are friction connections?

What will be an ideal response?

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Three sections of steel bar, each 2 3/4” long, are welded together. The finished piece is cut into 5 equal parts. What is the length of each new piece, in inches? Disregard cut waste.

What will be an ideal response?

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During preheating, the pipe is heated at least _____ inches on each side of the area to be welded prior to welding.

a. 6 b. 12 c. 18 d. 24

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The science of color tells us that all colors are absorbed into an object with the exception of the color

that is reflected, ____.

a. which then is the color that we see b. which is the only color we don’t see c. which becomes a combination of all the absorbed colors d. which becomes more intense the more reflective the surface of the object

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