Oversized suction lines:
A) Can reduce system efficiency because of a high pressure drop.
B) Can reduce system efficiency because of a low pressure drop.
C) Can cause poor oil return because of high refrigerant velocity.
D) Can cause poor oil return because of low refrigerant velocity.
D
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Which job earned enough money from labor sales for the owner if a 60% gross profit margin is required?
A. A brake job that had a labor sale of $190 and had a labor cost of $100 B. A head gasket job that had a labor sale of $850 and had a labor cost of $360 C. State safety inspection service that had a labor sale of $19.95 and had a labor cost of $11 D. A tie rod end replacement that had a labor sale of $60 and had a labor cost of $24
On a hip jack rafter, what type of cut is required on the end that lays up against the hip rafter?
A) Tail cut B) Plumb cut C) Double cheek cut D) Single cheek cut
____ provide the path for electrical flow from the source of electricity through system components and connections and back to the source.
A. Wiring diagrams B. Highway wiring diagrams C. Cable diagrams D. One line diagrams E. none of the above
The addition of air to water is called
A. precipitation B. aeration C. anaerobic D. settling