(a)
Explain the sequence of operations required to pump sumps.
(a)

Explanation of Solution
Discussion:
Float switches are used to start or stop a pump motor according to the changes in the liquid (water) level in a sump or tank. These are connected to a pump motor for sump pumping or tank operations.
If the sump is in full condition, it is required to start the pumping operation in order to empty the sump. To start the pumping operation, the float rises first and then the float switch contacts are closed. When the float switch contacts are closed, the pumping operation starts quickly in the system.
If the sump is in empty condition, it is required to stop the pumping operation in order to fill the sump. To stop the pumping operation, the float lowers first and then the float switch contacts are opened. The float lowers either directly or through a motor starter. When the float switch contacts are opened, the pumping operation stops quickly in the system.
Conclusion:
Thus, the operations required to pump sumps are explained.
(b)
Describe the sequence of operations required to fill tanks.
(b)

Explanation of Solution
Discussion:
If a tank is in full condition, it is required to stop the motor operation in order to empty the tank. To stop the motor operation, the float rises first and then the float switch contacts are closed. When the float switch contacts are closed, the motor driven pump is stopped immediately in the system.
If the tank is in empty condition, it is required to start the motor operation in order to fill the tank. To start the motor operation, the float lowers first and then the float switch contacts are opened. When the float switch contacts are opened, the motor operation starts immediately in the system.
Conclusion:
Thus, the operations required to fill tanks are described.
Want to see more full solutions like this?
- I need help with this problem and an step by step explanation of the solution from the image described below. (Introduction to Signals and Systems)arrow_forwardi need help insolving the following question pleasearrow_forwardI need help with this problem and an step by step explanation of the solution from the image described below. (Introduction to Signals and Systems)arrow_forward
- i need help insolving the following question pleasearrow_forwardNote that all capacitors are large so that their impedance is negligible at signal frequencies of interest. npn equations active Ic Ise VBE/VT = IB = (Is/B)eVB VBE/VT IE = (Is/α)еVB VBE/VT Ic=ẞIB_IС = αIE B α α = B = B+1 1-α Ic α Im Υπ re To= VT 9m Im 550 VAarrow_forwardi need help insolving the following question pleasearrow_forward
- I need help with this problem and an step by step explanation of the solution from the image described below. (Introduction to Signals and Systems)arrow_forward10.49 Using source transformation, find i in the circuit of Fig. 10.94. 5 Ω www 3Ω 5 mH 8 sin(200t+30°) A 1 mFarrow_forwardThis exam is closed book, but you may use one 8.5x11" sheet of notes (both sides), handwritten by you Wote all answers kot on this test paper! Use the personal key number N (written above) on the parameters se fix to Show your work and explain your reasoning Partial credit will be given for partial solutions. When giving a numerical answer, specify units ill any apply. No credit will be given for solving problems from previous 1. For the AM signal with periodic message m() shown in Fig. 1 and modulation index = 0.03A a) find the carrier amplitude and carrier power; b) find the sideband power and compute the power efficiency & N = 15 4+N AA -(4+N) Fig. 1 r(s)→arrow_forward
- Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,





