Which pump set is more suitable and economical for
liftingwater from 300Mtr borewell?
A. Compressor Pump
B. Submersible Pump
C. Jet Pumps
D. 25HP Centrifugal Pump
Q. from PSC Test 22-11-2008 Meter reader
Answer Posted / ahmed
25HP CENTRIFUGAL PUMP
Is This Answer Correct ? | 1 Yes | 5 No |
Post New Answer View All Answers
How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.
what is the purpose of silicon dropper used in battery charger?
please suggest some good universities with low cost iam in totally full confusion so please help me my profile gre 283 and ielts 5.5
how to do the ductor test?
how to test the electrical panel.ht lt mcc pcc.
given data are load current & power factor cable core size? plz any one update the calculation formula
What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?
Define super node?
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
how we calculate the withstansing current capacity of wires&cables?
There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?
1. A 380 / 220 V r.m.s. 3-phase 4-wire circuit carries loads of 8 + j8.1 ohm; 4 + j4.1 ohm; and 2 +j2.1 ohmin the three phases respectively. The length of the circuit is 100 m, and the resistivity of the phase conductors is 0.0005 Ω/m. The neutral conductor is of the same size as the phase conductors. a) Select a reference angle 0for the first phase. Then write down the three phase voltages in both polar format and complex number format. b) Make appropriate assumptions, and take temperature effects on resistance is insignificant. Calculate the currents in the three phases. (Note: Determine conductor resistance, and apply Kirchhoff’s Voltage Law) Based on the result, suggest a main switch rating for the circuit. c) Show your preferred direction of neutral current in a diagram, and then determine its value. (Note: Apply superposition principle, and Kirchhoff’s Current Law) Use its magnitude to show that in this circuit, the unbalanced load may increase the voltage drop in some of the phases. (Note: Also observe the common volt drip in neutral) State your assumptions, if there are any. d) Suddenly the neutral wire of the circuit is broken. Estimate the new currents in the first phase, i.e. Phase L1. State your assumptions, if there are any.
State thevenin’s theorem?
what is PWM in IGBT and how it works for drive.?
Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.