A fuel pump is being replaced for the third time. Technician A says that the gasoline could be contaminated. Technician B says that wiring to the pump could be corroded. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
B
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?Technician A says a simple check valve is used to block a hydraulic passageway. Technician B says it normally stops fluid flow in both directions. Who is correct?
A. ?A only B. ?B only C. ?Both A and B D. ?Neither A nor B
When the first European settlers arrived, which of the following was not a check on the population of herbivores?
A) disease B) climate C) predators D) market hunters
Because interior light levels are usually low, interior plants do not develop ____ quickly; therefore
they are not developing roots to support the plant’s needs for water and nutrients
a. top-heavy growth patterns c. soluble salt toxicity b. infections d. new leaves
DOT 5 brake fluid ________
A) May be mixed with DOT 3 and DOT 4 fluid B) Absorbs water easily C) Both A and B D) Neither A nor B