€¦ · Web viewA jet nozzle/venturi and centrifugal pump can increase its lift from _ to _. 10 feet – 28 feet 20 feet – 28 feet 15 feet – 20 feet 28 feet – 48 feet

Well Combination Part 3RV 1.19.16

PLEASE DO NOT BOOKMARK ANY ANYTIMECE WEBPAGES!Our system will remember the last page you viewed when logging out and back in but please DO NOT exit out when taking a test. Your place will NOT be saved.

How to take this course:1. Download and Print the test questions.

2. Login to your account with your ID and password.

3. Viewing your status page, scroll down and click on “Click here to start this course”.

4. Begin viewing the web pages. Refer to your printed test to find the correct answers. The questions track the web pages.

5. As you find the answers, circle them on your printed copy.

6. At the end of each section, you’ll enter the quiz which is the same as your printed test. Refer to your circled answers when actually answering the quiz on the web.

7. Upon passing, you will proceed to the next section. If failed to pass, you will be moved to the beginning of that section for more review.

Mobile users – Many current mobile devices are compatible with AnytimeCE and will probably work. If not, use a desktop or laptop computer to complete your course.

Quiz 1 – Chapter 61. Removal of water from a well at a rate faster

than the recharge or recovery rate will result in ______.

a dry well over-heated pump motor burnt out pump motor all of the answers provided none of the answers provided

2. Which of the following is not a standard well pump?

Shallow well jet pump Deep well jet pump Submersible pump Deep well submersible jet pump None of the answers provided

3. A shallow well jet pump has a/n ______.

impeller diffuser matched nozzle and venture all of the answers provided none of the answers provided

4. A venturi increases water velocity and ______ surrounding water pressure.

decreases increases equalizes multiplies none of the answers provided

1


5. This ______ pressure drags water from the surrounding area as it moves through the pipe.

decreased increased equalized multiplied none of the answers provided

6. A shallow well jet pump has all these parts except the ______.

diffuser nozzle electric motor impeller none of the answers provided

7. A jet nozzle and venturi combination is also known as a/n ______.

rejecter ejector subjector digester none of the answers provided

8. A jet nozzle/venturi and centrifugal pump can increase its lift from ______ to ______.

10 feet – 28 feet 20 feet – 28 feet 15 feet – 20 feet 28 feet – 48 feet none of the answers provided

9. A deep well jet pump is also known as a ______ system.

1 pipe 2 pipe 3 pipe hot pipe cold pipe

10. The venturi of a deep well jet pump is located ______.

at the inlet of the storage tank at the inlet of the pressure tank inside the pump housing at the bottom of the well above the foot

valve none of the answers provided

11. Typically, the maximum lift of a deep well jet pump is ______.

20 feet

28 feet 50 feet 100 feet none of the answers provided

12. The pipes on a deep well jet pump are ______ and ______ pipes.

suction – pressure hot – cold supply – return foot – hand none of the answers provided

13. The major difference between a shallow well jet pump and a deep well jet pump is ______.

the size of the motor the size of the ejector the location of the ejector the gpm that can be pumped none of the answers provided

14. A shallow well jet pump can be used to a maximum lift of ______.

25 feet 75 feet 100 feet greater than 100 feet none of the answers provided

Quiz 2 – Chapter 61. A submersible deep well pump can be used

to a maximum depth of ______. 25 feet 75 feet 100 feet greater than 100 feet none of the answers provided 2. A centrifugal pump discharges high pressure

liquid into a ______. basket receiver catch basin discharge pan none of the answers provided

2


3. The center or the eye of the vortex is ______ pressure.

low high neutral equal none of the answers provided

4. The eye ______ the supply water. pulls in pushes out freezes boils none of the answers provided

5. The 2 main parts of a centrifugal motor are ______ and the ______.

diffuser – receiver on switch – off switch impeller – repeller impeller – diffuser none of the answers provided

6. Typical shaft speeds are ______. 360 rpm 3600 rpm 36000 rpm none of the answers provided

7. Multiple configurations of impellers/diffusers are called ______.

stages sets units combos none of the answers provided

8. Increasing the multiple configurations of impellers/diffusers ______ system pressure and capacity.

decreases increases equalizes divides none of the answers provided

9. Most submersible pumps conform to NEMA standards for ______ diameters.

4 inch 6 inch 8 inch all of the answers provided none of the answers provided

10. On the pump curve as shown on the last page of this chapter, the submersible pump at a Total Dynamic Head of 500 feet would yield about ______.

10 gpm 15 gpm 20 gpm 25 gpm none of the answers provided

3


Quiz 3 – Chapter 7 – Example 1

4


1. A well pump must be sized to not exceed the well recovery rate because ______.

of the additional cost of the pump of increased electrical components a dry well may result it will encourage waste none of the answers provided

2. Wells that are deeper than 100 feet must use a ______.

shallow well jet pump deep well jet pump submersible pump transaxle pump

3. Elevation head is the ______ distance which the water must be pumped.

vertical horizontal maximum minimum none of the answers provided

4. In sizing a pump for a system, the first step is to determine the ______.

elevation head friction loss from the pipe friction loss from the fittings pressure head

5. In sizing a pump for a system, the second step is to determine the ______.


6. In sizing a pump for a system, the third step is to determine the ______.


7. In sizing a pump for a system, the fourth step is to determine the ______.


5


8. The elevation head is ______. 60 feet 100 feet 120 feet 170 feet 240 feet

9. Total length of straight pipe is ______. 100 feet 120 feet 170 feet 240 feet 275 feet

10. Pipe fitting losses – Equivalent length of pipe is ______ (to nearest full foot).

9 feet 19 feet 22 feet 27 feet 31 feet

11. Total equivalent length of pipe friction loss from pipe length and pipe fittings is ______.


12. Pressure loss per 100 feet of equivalent pipe is ______.

49.5 feet 12.6 feet 3.9 feet 1.0 feet 0.5 feet

13. Friction head loss from pipe is ______ (to nearest full foot).

5 feet 8 feet 16 feet 24 feet 91 feet14. Head loss on pressure tank – (psi x 2.31) =

______ (to nearest full foot). 47 feet 69 feet 93 feet 116 feet 139 feet

15. Total dynamic head is ______ (to nearest full foot).


16. The “best fit” pump to deliver the minimum demand gpm is a ______.

1/2 hp. 3/4 hp. 1 hp. 1-1/2 hp. none on chart

17. This “best fit” pump is expected to deliver about ______.

6 gpm 8 gpm 10 gpm 12 gpm 16 gpm

6













7. Head loss on pressure tank – (psi x 2.31) = ______ (to nearest full foot).

47 feet

7


69 feet 93 feet 116 feet 139 feet






4 gpm 6 gpm 11 gpm 15 gpm none on chart

8














47 feet

9









10














47 feet

11









Quiz 7 – Chapter 7 – InterpolationUse the PE Pipe Head Losses Table Shown at Quiz 3.Use the head loss/100 ft. for the following 6 questions.

1. 25 gpm for 1-1/4 inch dia. PE pipe: 5.7 6.2 8.7 9.1 10.5


3. 12 gpm for 3/4 inch dia. PE pipe: 21.2 28.9 42.6 51.9

67.1

4. 18 gpm for 1 inch dia. PE pipe: 6.2 11.2 15.4 16.2 18.1


6. 87 gpm for 2 inch dia. PE pipe: 10.3 10.9 11.2 11.9 12.3

Quiz 8 – Chapter 81. A two wire system has ______. only a black wire and a red wire only a black wire and a white wire only a black wire, a white wire, and a green

wire none of the answers provided

2. A black and white wire used for power indicates a ______ system.

12 volt 115 volt 230 volt 460 volt none of the answers provided

3. A black and red wire used for power indicates a ______ system.

12 volt 115 volt 230 volt 460 volt none of the answers provided

12


4. What can happen if a pump motor seized? The pump could overheat. The pump motor could melt the protective

insulation on the motor windings. The pump motor could short out and start a

fire. All of the answers provided.

5. An A.O. Smith 3 Hp. motor / 230 volts requires a ______ amp circuit breaker.

10 15 20 25 30

6. An A.O. Smith 1-1/2 Hp. motor / 230 volts requires a ______ amp circuit breaker.

10 15 20 25 30

7. On electrical diagrams for 115 volt circuits, L1 is a black wire and L2 is a white wire that can be labeled ______.

N Neutral both of the answers provided neither of the answers provided

8. The type of float switch used to turn off the pump when the storage tank is full is ______ switch.

an open on level rise a close on level rise both of the answers provided neither of the answers provided

9. Float switches can be added one after the other to serve as a safety control.

True False

10. A pressure switch is rated at 30/50 psi; this means ______.

when pressure is 30 psi or less, the pump is activated

when the pressure is 50 psi, the pump is turned off

when the pressure is 40 psi the pump may or may not be activated

all of the answers provided none of the answers provided

11. A 115-volt pump uses ______ set(s) of contacts, while a 230-volt pump uses ______ set(s) of contacts.

1 – 2 2 – 1 1 – 1 2 – 2 2 – 3

12. To lower the cut ON & OFF pressures on a pressure control, turn the No. ______ nut ______.

#1 – CW #1 – CCW #2 – CW #2 – CCW

13. To lower the cut OFF pressures on a pressure control, turn the No. ______ nut ______.

#1 – CW #1 – CCW #2 – CW #2 – CCW

14. The maximum Hp. that a pressure switch can directly control is ______.

1.5 Hp. @ 115v 1.5 Hp. @ 230v 2.0 Hp. @ 115v 5.0 Hp. @ 230v

Quiz 9 – Chapter 81. When de-energized, the contacts on a

contactor are ______. open closed welded shut intermittent none of the answers provided

13


2. The motor stator consists of ______. copper coils aluminum bars steel plates iron plates none of the answers provided

3. The motor rotor turns the pumping mechanism.

True False

4. A motor has ______ sets of coils. 1 2 3 4 5

5. A start capacitor ______ initial starting torque of the motor.

neutralizes cancels out decreases increases none of the answers provided

6. A run capacitor ______ overall efficiency of the motor.

neutralizes cancels out decreases increases none of the answers provided

7. A PSC motor uses ______ to dis-engage the start windings.

centrifugal switch potential relay current relay no relays

8. A submersible pump would use ______ wires from the control box to the pump motor.

2 3 4 5

9. To change direction of rotation of a 3 phase motor, simply switch ______ of the power wires.

1 2 3 4 5

10. The ______ discharge pressure on a 3 phase pump indicates the correct pump rotation.

highest lowest average zero none of the answers provided

11. A mag-starter will prevent single phasing on a 3 phase motor.

True False

12. Surge protectors have ______ which passes the surge to ground.

MOV ABC 123 XYZ none of the answers provided

13. A Pump Saver protects a pump motor from ______.

drywell dead-head jammed impeller overvoltage all of the answers provided

14

Documents

€¦ · Web viewA jet nozzle/venturi and centrifugal pump can increase its lift from _____ to _____. 10 feet – 28 feet 20 feet – 28 feet 15 feet – 20 feet 28 feet – 48 feet

€¦ · Web viewA jet nozzle/venturi and centrifugal pump can increase its lift from _ to _. 10 feet – 28 feet 20 feet – 28 feet 15 feet – 20 feet 28 feet – 48 feet