Answer Key: Self-Test B-4.4
- e. A vertical pipe connected to runouts on more than one floor
- c. A pipe that connects a heat transfer unit to other parts of a heating system
- a. The horizontal pipe that connects a main to a riser
- b. A run of pipe with three or more elbows that allow parts of a run to have different slopes and movement without severe stress
- d. An arrangement of pipes and fittings that allows the movement of parts of a piping run caused by thermal expansion without excessive stress
- a. Be almost level or have an upward grade of 4 mm/m ([latex]\tfrac{1}{2}[/latex] in./10 ft)
- d. Either all 90° elbows or a combination of 90° and 45° elbows
- a. True
- a. True
- c. Bottom
- c. Greater comfort
- b. System layout
- d. Due to the stack effect
- c. Be zoned separately
- c. Bathroom
- d. Bedroom
- a. Balancing flows in circuits
- b. Adjusting balancing valves
