Kansas Water Treatment Study Guide Class 2 Quiz
Kansas water treatment study guide contains detailed information on the modes and processes involved in the treatment of water in Kansas city. To well understand how the whole treatment works, take the quiz below. All the best.
- 1.1. The operating budget for the year was $94,571. At the end of 10 months $17,863 remained. How much had been expended?
- A.
$67,708
- B.
$67,807
- C.
$76,708
- D.
$87,706
- 2.Cavitation is a problem with pumps. What can be done to prevent it from occurring?
- A.
clear the blow-off valve
- B.
place another pump on the line
- C.
Reduce the suction head
- D.
reduce the suction lift
- 3.The least head loss in a pipeline would be caused by a fully open
- A.
angle valve
- B.
Check valve
- C.
gate valve.
- D.
globe valve
- 4.In a conventional treatment plant using pH adjustment, the minimum number of runs in a jar test is
- A.
1
- B.
2
- C.
3
- D.
4
- 5.To convert milligrams per liter to grains per gallons, multiply milligrams per liter by
- A.
98.6
- B.
62.4
- C.
17.1
- D.
8.34
- 6.Tastes and odors from phenolic compounds may be _____ by chlorination
- A.
Decreased
- B.
Increased
- C.
removed
- D.
None
- 7.Calcium oxide is also called
- A.
Slaked lime.
- B.
quicklime.
- C.
hydrated lime
- D.
Dehydrated lime.
- 8.If a water tank is filled with water to a height of 40 ft and the tank is 20 ft in diameter, the pressure at the base of the tank is _____ psi.
- A.
17.32
- B.
62.4
- C.
144
- D.
1440
- 9.From a sanitary standpoint, the pressure in a distribution system should not be allowed to fall to zero because
- A.
. the chlorine residual will escape
- B.
low pressure allows bacteria to multiply
- C.
groundwater may enter and backsiphonage may occur
- D.
None of the above.
- 10.Which one of the following is a hazard when using hydrofluosilicic acid?
- A.
Corrosiveness
- B.
Explosiveness
- C.
flammability
- D.
None of the above
- 11.Static suction head plus friction suction head plus static discharge head plus friction discharge head makes up the ___________ of a pump.
- A.
operating pressure
- B.
pump curve
- C.
total dynamic head
- D.
Velocity head
- 12.The volume of a cone with a radius of 8 ft and a height of 12 ft is ________ft3.
- A.
84
- B.
256
- C.
502
- D.
804
- 13.Water is at its greatest density at a temperature of
- A.
32 F (0 C)
- B.
39.2 F (4 C)
- C.
37 F (3 C)
- D.
45 F (7 C)
- 14.A heavy growth of algae in a surface water reservoir will have which one of the following effects on the water?
- A.
lower the pH
- B.
Raise the pH
- C.
Will have no effect on the pH
- D.
Your mom
- 15.A step in determining the threshold odor number is
- A.
Counting the odor-producing organisms present
- B.
diluting the sample with distilled water.
- C.
diluting the sample with odor-free water
- D.
matching the odor against the standards
- 16.A centrifugal pump when operating normally shows a discharge pressure of 100 psi and the Venturi meter shows a flow rate of 20,000 gpm. Suddenly the pressure drops to 90 psi and the flow rate increases to 23,000 gpm. You would suspect
- A.
a faulty gauge and manometer tube
- B.
a large leak in the pump discharge line.
- C.
. foreign matter caught in the Venturi-tube throat.
- D.
the packing is sucking air.
- 17.A test on a water supply showed a hardness of 232 mg/L. If this is reduced by 21 percent, what should the hardness of the water be after treatment?
- A.
138 mg/L
- B.
174 mg/L
- C.
183 mg/L
- D.
211 mg/L
- 18.A water treatment plant used 647 chlorine cylinders during one year's operation.The average withdrawal from each cylinder was 138 lb. What was the total number of pounds of chlorine used?
- A.
89,875 lb
- B.
89,286 lb
- C.
70,872 lb
- D.
69,876 lb
- 19.The bacteriocidal action of free available chlorine compared with that of combined available chlorine is
- A.
greater
- B.
less.
- C.
The same under most conditions
- D.
not possible to determine.
- 20.The condition in infants known as methamoglobinemia is thought to be caused mainly by high concentrations of
- A.
phosphate
- B.
nitrate
- C.
fluoride
- D.
chloride
- 21.The flow through a water treatment plant is 27,777 gpm. The flow is _____mgd
- A.
0.27
- B.
14
- C.
27
- D.
40
- 22.Vertical turbine pumps that are used in wells may be oil lubricated or water lubricated. Operators should use extreme care not to start any water-lubricated pump before making sure that the
- A.
. bearings are dry
- B.
bearings are wet.
- C.
Valve on the discharge side is closed.
- D.
valve on the suction side is closed
- 23.The chemical symbol for potassium is
- A.
Al
- B.
Ba
- C.
K
- D.
Po.
- 24.Concentrations of hardness are expressed in terms of
- A.
a percent of calcium hardness to total hardness
- B.
calcium and magnesium hardness.
- C.
milligrams per liter as CaCO3.
- D.
soft to very hard.
- 25.The amperometric titration method is used to measure
- A.
alkalinity
- B.
chlorine residual
- C.
pH
- D.
total hardness.