Which of the listed statements is not a good engineering practice when operating mobile cranes in cold weather?

a. Allow ample time for hydraulic oil to heat up.
b. Displace cold hydraulic fluid in the system before beginning operations.
c. Operate rotating hydraulic devices a few revolutions in both directions before use.
d. Warm up engines at high rpms to quickly reach operating temperature.


d. Warm up engines at high rpms to quickly reach operating temperature.

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As a result of the panic of 1837

A. the U. S. established restrictions on foreign loans. B. President John Tyler reversed his opposition to a national bank and signed legislation authorizing a "Fiscal Corporation." C. anti-British passions cooled in America. D. the Democrats led America into war for more territory. E. several states defaulted on their bonds or repudiated them openly.

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Determine your average walking speed. Compare your results with that of the recommended walking speed in the MUTCD. Which value is more conservative and why?

What will be an ideal response?

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Using Figures 22-2 and 22-3, determine the cost for a 125-foot by 200-foot warehouse. The exterior walls are to be galvanized steel siding over a steel frame. The warehouse is 26 feet high. Include 50 feet of asphalt around the building in your estimate.

What will be an ideal response?

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In the accompanying figure, the measurement indicates a(n) ____.

A. arc B. chord C. diameter D. radius

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