What are water fog systems?
What will be an ideal response?
Water fog systems use a standard sprinkler piping system and have spray heads or nozzles instead of sprinkler heads. They are used in areas where highly flammable materials are stored. The fog tends to cool materials, keeping them below ignition temperature.
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Given the circuit in Fig. 18.41, with its excitation, determine the Fourier transform of i(t).
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The radius of a horizontal curve on an existing highway was field-measured to be 810 ft. The pavement on this two-lane highway is 22 ft wide, and the elevation difference between the inside and outside of the curve is 1.43 ft. The posted speed limit on the road is 60 mi/h. Is this a hazardous location? If so, why? What action will you recommend to correct the situation?
What will be an ideal response?
Which of the following statements is true regarding inside corners and outside corners?
A. Inside corners are not built as frequently as outside corners. B. Outside corners are much easier to build than inside corners. C. Inside corners are uncommon structures that have exposed interior brickwork. D. When building inside or outside corners, face the side of the corner that is opposite of the face of the wall.
On which of the following types of fire should you not use a B.C fire extinguisher?