For the same thickness, which of the following materials has the highest R-value?
A) Polyisocyanurate
B) Fiberglass
C) Gypsum
D) Extruded polystyrene
E) Expanded polystyrene
A) Polyisocyanurate
You might also like to view...
As a rule, a ____ is prepared for each subassembly and shown in a ruled space on the drawing.
A. materials assembly B. bill of materials C. usage assembly D. usage materials
What is the unit of measure for built-up roofing? What type of information should be noted on the estimate?
What will be an ideal response?
Why is the typical rear load-leveling system connected to the ignition circuit?
A) To prevent the system from working unless the ignition key is on B) To keep the system active for a given time after the ignition is switched off C) To keep the compressor from running for an extended period of time D) All of the above
As the load on an evaporator increases, the automatic expansion valve will open to allow more refrigerant to enter the evaporator.
Answer the following statement true (T) or false (F)