By far the most widely used wall surface material is gypsum wallboard, which is also called _____________.
A. underlayment
B. sheetrock
C. kraft paper
D. wall paper
Answer: B
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The Confederacy's most effective commerce-raider was the
A. Monitor. B. Merrimack. C. Trent. D. Virginia. E. Alabama.
Feedback signals are used to confirm position and operation of an actuator.
Answer the following statement true (T) or false (F)
A good reading for a cylinder leakage test would be ________
A) Within 20% between cylinders B) All cylinders below 20% leakage C) All cylinders above 70% leakage and within 7% of each other D) All cylinders above 20% leakage
For a long run gable roof, it is recommended that you start in the center rather than at one end or the other
because _____. A) this provides a slight slope from the center to help drain excess water from the roof B) there is less chance of misalignment in both directions C) composition shingles must be overlapped from side to side, starting from a center shingle D) you cannot accurately measure the space between courses on the ends of the roof