The ____ controls the operation of the computer by performing arithmetic and logical operations and decodes and executes instructions provided by either the operator or a program.

A. PCU
B. UPC
C. ALU
D. CPU


Answer: D

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

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

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Loss of P to groundwater is likely to be most significant for which type of soil?

A) highly weathered tropical soils B) silt loam soils formed in windblown loess C) cultivated organic peat soils D) calcareous soils E) sandy soils under pine forests (Spodosols)

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Technician A says that a magnetic field is created in the alternator rotor. Technician B says that alternator output is increased if the speed of the alternator is decreased. Who is right?

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