This dynamic seal is most commonly used for most rotating or oscillating motion.

a. packing
b. labyrinth seal
c. O-ring seal
d. felt or wool seal


c. O-ring seal

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How did the rise of social conservatism affect issues like affirmative action and women's rights?

What will be an ideal response?

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An LED located on the front cover of the smoke detector, manufactured by Whelan Engineering Co., flashes every ____ seconds to indicate the detector is in working order.

A. four B. five C. nine D. ten

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The regulators used on oxygen cylinders are often painted green and always have _____ on all connections.

a. right-hand threads b. left-hand threads c. metric threads d. safety latches

Trades & Technology

A Total Quality approach cannot be used for managing safety in traditional organizations.