In connecting the upper-column shaft with a lower-column shaft in a multistory steel-frame building, we generally require

A) three flange plates.
B) two flange plates.
C) one flange plate.
D) four flange plates.


B) two flange plates.

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A stream flowing through a rural agricultural region in Central America contains 10–1 MPN/100ml of Giardia lambia cysts. If a backpacking tourist drinks 5 liters of water per day, how many days before the hiker is likely to become ill due to the salmonella contamination? Assume the typical infectious dose for Giardia in this community is 10 organisms.

What will be an ideal response?

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For the reaction of butane burned with stoichiometric air, the dew-point temperature of the products is nearest (assume Patm = 100 kPa):

A) 44°C B) 48°C C) 51°C D) 54°C

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The products of complete combustion of a hydrocarbon gas are:

A) Water, carbon, carbon dioxide, and carbon monoxide. B) Carbon, carbon dioxide, and carbon monoxide. C) Water and carbon dioxide. D) Carbon dioxide and carbon monoxide.

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A common mistake during hood removal is forgetting to disconnect windshield washer hoses and wires, which can break or snap small hose fittings or sever wires.

Answer the following statement true (T) or false (F)

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