?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?
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
?Solar collectors cannot use infrared and ultraviolet wavelengths because they are diffuse.
Answer the following statement true (T) or false (F)
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