When drywall nail heads work up from under the finished surface after installation is complete, the job is said to have _____.

a. dimples
b. nail pops
c. nail bumps
d. ripples


Answer: B

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Which of the following is most commonly used to cut RMC and IMC?

a. Pipe cutter b. Reciprocating saw c. Table saw d. Chop saw

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Which of the following may be used to open a fused disconnect or circuit breaker?

a. Rheostat b. Positive locking device c. Shunt trip d. Site-isolating device

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The political developments of the l890s were largely shaped by

A. the widespread prosperity and federal budget surpluses. B. America's growing involvement in overseas conflicts. C. the most severe and extended economic depression up to that time. D. the growing black rebellion against segregation and racial oppression. E. the deadlock among Republicans, Democrats, and Populists in Congress.

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

1. Mobile engine designs typically aim for several thousand hours of life. 2. Fuel cells are said to be high emission technologies. 3. Any engine meant to drive a moving platform has to be compact but still robust 4. Methanol is very corrosive and has an affinity for water that makes transporting it difficult. 5. Fuel cells directly drive power shafts, whereas ICE engine sets generate electric currents.

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