Which of the following pH readings taken in engine coolant fall in the normal range?
A. 3.5
B. 6.0
C. 9.0
D. 13.5
Answer: C
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Wheel and tire imbalance is the most common source of vibrations that occur in what frequency range?
A) 50-100 Hz B) 20-50 Hz C) 100-150 Hz D) 5-20 Hz
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What is the pressure-temperature rating for carbon steel pipe flanged fittings at 50 degrees Fahrenheit and a class of 900?
A. 675 B. 875 C. 990 D. 2220
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Which of the following are common materials used for insulation in residential construction?
A) Fiberglass, cellulose, and foam B) PVC, asbestos, and vermiculite C) Thermoplastic, PVC, and ABS D) Cement, asbestos, and gypsum
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On OBD II systems, failure to clear DTCs will result in the temporary disablement of the non-continuous system monitors.
Answer the following statement true (T) or false (F)
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