In the United States, what is the term for the softest coal? The hardest coal?

What will be an ideal response?


Softest is lignite or brown coal. Hardest is anthracite or hard coal

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When dealing with hazardous waste materials, the goal of your shop should be to recycle these materials as much as possible. Which of the following materials must be recycled?

A. ATF B. Used engine oil C. Refrigerants D. All of the above

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If Broca's area is damaged, what might result?

A) loss of sensation B) loss of the ability to speak C) loss of upper limb control D) loss of memory E) mental retardation

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What should construction workers do if welding is required in an area where there are combustible materials?

What will be an ideal response?

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Where in the compression refrigeration cycle is the refrigerant subcooled?

What will be an ideal response?

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