____ walls use locally gathered soil, often combined with some Portland cement that is compacted into removable forms with the aid of hand tools or power machinery.
A. Cob
B. Rammed earth
C. Baled
D. Slab-on-grade
Answer: B
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The electric motor is the smallest load used in most heating, cooling, and refrigeration systems.
Answer the following statement true (T) or false (F)
What do DDC recommend when determining whether the rail to HADI high pressure pipes can be re-used or not?
A. They should never be re-used B. Re-use permitted but must be monitored carefully after re-torque C. When one fails, the other five should be changed. D. They should last the life of the engine
Give two alternate names for a parts list.
What will be an ideal response?
Calculate the amount of heat in BTU required to change the temperature of 10 lb of copper from 100°F to 150°F. The specific heat of copper is 0.09 BTU/lb
A) 10 lb × 50°F × 0.09 BTU/lb = 45 BTU B) 10 lb × 0.09 BTU/lb = 0.9 BTU C) 10 lb × 50°F = 500 BTU D) The amount of heat required cannot be calculated using the information given.