The speed of sound in a fluid can be calculated using the following equation:


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Wire, synthetic ropes, or fiber ropes used for scaffolding suspension should be capable of supporting at least _____ times the rated load.

A. two B. three C. five D. six

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Why must an arcing device be contained within a special enclosure?

a. To prevent the ignition of hazardous vapors b. To keep out dust and protect the device c. To allow gases and vapors to enter the conduit system d. To lock out any unauthorized users of the device

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A ____________________ fat is a vegetable fat that has undergone hydrogenation such that the fatty acids are partially unsaturated

Fill in the blank(s) with correct word

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Where is a torque valve located on a truck air-assist steering system?

A. On the Pitman arm B. On the drag link C. On the power cylinder D. On the tie-rod

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