?Which dust, used in the plastics industry, has the greatest capacity for explosion?  

A. ?alkyd molding compound
B. ?cornstarch
C. ?chlorinated polyether alcohol
D. ?melamine-formaldehyde


Answer: B

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What common types of phase change materials are used for thermal storage systems?

What will be an ideal response?

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The technology that superimposes dash display data onto the windshield within the driver's line of sight is known as:

A. DVD B. HUD C. HID D. LED

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?Solar collectors cannot use infrared and ultraviolet wavelengths because they are diffuse.

Answer the following statement true (T) or false (F)

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Standpipe systems are classified depending on who is expected to use the system. A Class I system is designed to be used by Fire Department and Fire Brigade personnel. What is the diameter of the fire hoses in these systems?

A. 2½ inches B. 2 inches C. 1½ inches D. 1 inch

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