To keep brickmaking and bricklaying secrets confined to their own groups, early masons _____ .
A. allowed only family members to join the trade
B. patented their trade secrets
C. required student to pay for the right to learn the secrets
D. banded together in organizations called guilds
Answer: D
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The building code has an influence over every aspect of a construction project.
Answer the following statement true (T) or false (F)
Anhydrous ammonia is also known as refrigerant _____.
a. R-771 b. A-717 c. A-771 d. R-717
Corrosion on electrical terminals may cause ________
A) Lights to be dimmer than normal B) Increased current flow in the circuit C) Both A and B D) Neither A nor B