Technician A says that all O- rings are OK to use with R 134a systems. Technician B says that the color of the O-ring indicates the material it is made from. Which technician is correct?

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


B) Technician B only

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During their formation, RBCs

A) flatten. B) multiply their mitochondria. C) eject their nucleus. D) are saturated with oxygen. E) recycle hemoglobin into iron and pigment molecules.

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Most of the elk consumed in America is imported from which of the following?

A. Bolivia B. New Zealand C. France D. Chile

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Which valve is used on a factory supercharger to limit boost?

A) A wastegate B) An air valve C) A blow-off valve D) A bypass valve

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A major component of any foundation, concrete is a green material in all stages of its life span, from raw material production to demolition, making it a natural choice for sustainable home construction.

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

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