True/False Indicate whether the statement is true or false. ____ 1. Hardwoods are more porous than softwoods. ____ 2. Mahogany is an example of a hardwood. ____ 3. Radial shrinkage (the thickness of a board) is greater than tangential shrinkage. ____ 4. Warpage occurring with the length of the board is referred to as cup warp. ____ 5. One of the seven major subindustries that make up the wood industry is furniture making. ____ 6. Grade A of select lumber may contain knots and stains. ____ 7. The formula for calculating the board feet in lumber is: (thickness width length) /number of boards. ____ 8. Radio frequency (RF) dielectric drying is widely used in industrial applications because large quantities of wood can be dried at one time. ____ 9. Filler should be used on oak before applying a finish. ____ 10. It is not necessary to season or dry pine, because it is a softwood and does not contain excessive amounts of moisture