The shell-and-tube condenser is cleaned ____.

A. with a brush after removing the end caps
B. only with chemicals
C. with compressed air
D. with a vacuum cleaner


Answer: A

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Convert the engineer’s sketch shown in Figure P3–5 to a formal drawing. Remember, the sketch is not accurate, so you will have to lay out all bearings and distances. Use the following guidelines unless otherwise specified by your instructor:

a. Use an ANSI C size (17? × 22?) sheet. b. Include: ? Title Scale 1? = 10? or 1? = 20? Graphic scale ? North arrow ? Your name and date c. Make a print unless otherwise specified. Follow the specific instructions to complete each problem. What will be an ideal response?

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Which of the following items is toxic to birds?

a. newspaper ink b. shredded coconut c. dairy products d. aerosol sprays

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Typically the posts or piers support a beam or ____, which in turn supports ____.

A. girder; joists B. joist; girders C. plank; posts D. post; girders

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Benjamin Franklin, in 1748, strung together several Leyden jars as ____ and called the array a “Battery”.

a. inverters b. transformers c. capacitors d. resistors

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