Green stains appearing on a fixture under the faucet are likely caused by which type of water problem?

a. turbidity
b. hardness
c. acidity
d. dissolved iron


ANSWER: b

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Most employers will conduct and expect you to be able to pass a ____ test.

a. verbal b. memory c. drug d. driving

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It is sometimes said that the Europeans who came to the Americas settled a "virgin land" that was unused and unspoiled. Write an essay demonstrating that this is, or is not, an accurate description of what happened.

What will be an ideal response?

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The speed at which the magnetic field rotates is called the ____.

A. synchronous speed B. asynchronous speed C. lateral speed D. horizontal speed

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How many bits are required for the output of an ADC that has 15 quantization levels?

A) 16 B) 4 C) 8 D) 2

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