Self-Test D-2.2 Install Valve

Complete Self-Test D-2.2 and check your answers.

1. In what position would a swing-check be installed?
   1. Vertical flow down or up
   2. Horizontal hinge pin vertical
   3. Horizontal position, flow above disk only
   4. Horizontal or vertical flow up position
2. What operation condition is suitable for a swing-check valve?
   1. Low velocity
   2. High velocity
   3. Rapid pressure fluctuation
   4. Sudden stoppages in flow
3. In what position should a swing-check hinge pin be?
   1. Vertical
   2. Horizontal
   3. 45 degrees from vertical
   4. 60 degrees from vertical
4. What is the minimum distance from another fitting that a butterfly valve should be installed?
   1. 2 diameters
   2. 6 diameters
   3. 8 diameters
   4. 10 diameters
5. What position is recommended for a butterfly stem with an actuator installed?
   1. Horizontal
   2. At an angle of 45 degrees
   3. Vertical directly above the actuator
   4. Vertical directly below the actuator
6. What type of valve is used on a water service just inside the building and at a location where draining is required to prevent freezing?
   1. Gate valve
   2. Ball valve
   3. Straight stop
   4. Stop and waste valve
7. In what position should the hinge pin of a swing-check valve be installed?
   1. Vertical
   2. Horizontal
   3. 45 degrees to the vertical
   4. 45 degrees from the horizontal
8. In what position must the temperature-sensing element of a relief valve be placed on a hot water storage heater tank?
   1. Upstream of the tank shut-off valve
   2. Downstream of the tank shut-off valve
   3. Within the top 150 mm (6 in.) of the tank
   4. Within the bottom 150 mm (6 in.) of the tank
9. How far away do you need to install a valve from another fitting? (minimum distance)?
   1. 3 pipe diameters upstream
   2. 3 pipe diameters downstream
   3. 8 pipe diameters upstream
   4. 10 pipe diameters upstream

Answer Key: Self-Test D-2.2 is on the next page.