Technician A says that high frequency vibrations are likely to be heard rather than felt. Technician B says that engine related vibrations vary with engine speed. Which technician is correct?

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


C) Both technicians

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Describe the working conditions associated with the coal industry

What will be an ideal response?

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The accompanying figure shows an assortment of mechanical symbols. What is the second symbol from the bottom?

A. Rectangular ceiling diffuser B. Round ceiling diffuser C. Flexible connection D. Transition

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Spark plug wires are easily removed by pulling on the wire close to the spark plug boot

Indicate whether the statement is true or false

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When a load is placed on a truck with a C-channel, ladder frame, which ONE of the following is true of the C-channel rails?

A. neutral fiber is under compressional force B. upper flange is under tensional force C. lower flange is under tensional force D. the entire rail is under compressional force

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