EXERCISES: LESSON 4
INSTRUCTIONS: Answer the following exercises by circling the lettered response that
best answers the question.
After you have answered all of the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers. For each exercise answered incorrectly,
reread the lesson material referenced after the solution.
Which of the following statements describes what you do to repair the flow control
a. Use a wrench or pliers to tighten the set screw very securely.
b. Remove the knob, wiggle the sealing cap gasket and the stop float, and
replace the knob.
Turn the knurled flow control valve knob counter-clockwise to the stop, then
turn clockwise until the leak stops.
d. Remove the knob, tighten the packing nut, turn the stem clockwise until the
leak stops, and replace the knob.
Which of the following statements about replacing the flow meter tubes is correct?
a. You must match the color coding of the replacement flow meter tube with the
broken flow tube.
b. If you replace a flow meter tube alone, you destroy the accuracy of the flow
You can replace all flow meter parts easily because they are completely
d. If you replace flow meter tubes, you must also replace the associated flow
meter control valve.