Quiz #1

  1. Which of the following are the primary functions of a centrifugal pump?
    1. Lift water to a higher elevation
    2. Increase pressure in a pipe
    3. Empty a water tank
    4. All of the above
  2. Total Head is defined as?
    1. Pressure needed to overcome the friction of pipes and fittings.
    2. The distance between the supply level and the level of discharge, adjusted for suction head or lift.
    3. The height of the column of liquid at rest.
    4. The measure of the energy of a liquid that is flowing.
  3. Pumps in series:
    1. Add pressure (head) and capacity
    2. Add pressure (head)
    3. Add capacity
    4. Subtract capacity
  4. Which of the following are types of horsepower:
    1. Water, Brake and Motor
    2. Suction, Brake, and Motor
    3. Water, Mechanical, Potential
    4. Brake, Suction, Potential
  5. Water Hammer and Cavitation both cause issues in the system. What causes cavitation?
    1. Water flow stopping or increasing pressure causing shock waves.
    2. The water does not enter the pump under sufficient pressure causing the water to “boil”.
    3. Water being too warm for the pump to properly function.
    4. The impeller turning against the flow of water.
  6. A centrifugal pump will not move water unless it is
    1. Empty
    2. Over 30 HP
    3. Primed
    4. All of the above
  7. __________ is the energy applied to the pump shaft.
    1. Motor HP
    2. Brake HP
    3. Water HP
    4. Gross HP
  8. Pressure is a measure of the amount of force on a defined area.
    1. True
    2. False
  9. _____________ is the pressure of water at rest, not flowing.
    1. Residual pressure
    2. Negative head
    3. Suction lift
    4. Static pressure
  10. Atmospheric pressure at sea level is approximately
    1. 147 psi
    2. 1.47 psi
    3. 14.7 psi
    4. 17.4 psi