A hypothesis is a scientifically proven cause of a problem.

Answer the following statement true (T) or false (F)


False

Rationale: A hypothesis serves as the basis for investigating a problem.

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Two technicians are discussing vacuum brake boosters. Technician A says that a low, soft brake pedal is an indication of a defective booster. Technician B says that there should be at least two power-assisted brake applications after the engine stops running. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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Which of the following terms refers to the very small movement of terminals against each other that wears away the outer layer of the metal? 

A. continuity B. thermal cycling C. resistance D. fretting

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If a new substance is not produced, what type of change has occurred?

A) Physical change B) Chemical change C) Compounded change D) Composition change

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Structure L is the



A) midbrain.
B) forebrain.
C) cerebellum.
D) basal ganglia.
E) brainstem.

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