The fourteenth-century plague was

a. an epidemic.
b. a result of poor building codes and sanitation.
c. deliberately introduced into Europe by Mongols.
d. a pandemic.


d. a pandemic.

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_____ are used to make grooves or notches in wood

A) Saws? B) Boring tools? C) Chisels? D) Marking tools

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How is the formula QS = 1.08 × cfm × TD often called?

What will be an ideal response?

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If benefits are $10,000 per year forever starting in year 1, and costs are $50,000 at time zero and $50,000 at the end of year 2, the B/C ratio at i = 10% per year is closest to:

(a) 0.93 (b) 1.10 (c) 1.24 (d) 1.73

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Why is a binary-weighted resistor DAC impractical when over four bits of resolution are needed?

A) Too much current is demanded from the power supply. B) Too many odd resistor sizes are required. C) Not enough voltage can be generated by the power supply. D) It becomes too difficult to calculate the voltage output.

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