Before Windows Are Installed, the Exterior Walls Are Covered with a Building

Q10: _ is used to designate a type

Q11: A _ is a twist in the

Q12: The _ door is opened by sliding

Q13: The outside vertical edge members of a

Q14: French doors may contain from 1 to

Q16: _ are narrow, closely spaced, concave grooves

Q17: Double-hung windows are twice as large as

Q18: Louver doors are made with spaced horizontal

Q19: A(n) _ window unit consists of a

Q20: The bottom horizontal member of the window