Where is the ideal location for peak cylinder pressure to occur on the power stroke?
A. TDC
B. 15 degrees ATDC
C. 45 degrees ATDC
D. 90 degrees ATDC
Answer: B
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What thread class is used if rapid assembly and disassembly of a part is required?
a. UNC b. UNEC c. UNF d. UNEF
Ducts up to 60 inches wide must be supported with _____
a. angle iron b. trapeze hangers c. strap hangers d. heavy gauge wires