Match the oil contaminant with the possible source. Some contaminants may come from multiple sources.

A. High humidty conditions
B. Roller bearing
C. Dust
D. Elevated temperature
E. Plain bearing
F. Pump seal
G. Gears
H. Shaft


A. Water
B. Iron
C. Silica
D. Carbon
E. Zinc
F. rubber particles
G. Iron
H. Iron

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What is the difference between overload protection and fuse or circuit protection?

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Which of the following federal agencies regulates all safety and health issues of the automotive industry?

A. MSHA B. OSHA C. NIOSH D. None of the above

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Determine the number of times interest is compounded in a year for the following interest statements: (a) 1% per quarter; (b) 2% per month; and (c) 8% per year, compounded every 2 months.

What will be an ideal response?

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In a voltage-controlled oscillator (VCO), the output signal frequency is dependent on:

A) the value of a resistor. B) the value of an applied voltage. C) the value of a capacitor. D) the value of a resistor-capacitor combination.

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