Technician A says an indication of preignition could be a hole burned in the center of a piston. Technician B says detonation is an explosion inside the cylinder. Which technician is correct?

A. Technician A
B. Technician B
C. Both technicians
D. Neither technician


Answer: C

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Which of the following laws were put to use by combining materials and energy to produce different devices and machines?

a. biologic c. physical b. geographic d. genetic

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Lime gradually moves down through the soil at a rate of how many inches per year?

A) 1/2-1 inch B) 1-2 inches C) 2-3 inches D) 2 1/2-3 inches

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List two types of clutch discs.

What will be an ideal response?

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Genotype +________ = Phenotype

Fill in the blank(s) with correct word

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