A petroleum product is pumped at a rate of 2.525 x 10-3 m³/s from a reservoir under atmospheric pressure to 1.83 m height. If the pump 1.32 m height from the reservoir, the discharge line diameter is 4 cm and the pressure drop along its length 3.45 kPa. The gauge pressure reading at the end of the discharge line 345 kPa. The pressure drop along the suction line is 3.45 kPa and pump efficiency n=0.6 calculate: (i) The total head of the system Ah. (ii) The power required for pump. (iii) The NPSH Ps Q

A generator rated at 30MVA, 11kV has a reactance of 40%. Calculate its p.u. reactances for a base of 50MVA and 10kV. O 0.606 p.u. O 0.506 p.u. O 0.806 p.u. O 0.706 p.u.

ECE 20 CW1-1 12 Vrms ↓ 177 a) what is the load voltage ? b) If the capacitor is open- what's the load voltage?

QUESTION 11 An inductor is connected in parallel with a 6540 resistor and a function generator. The applied voltage is 42V RMS and the total current is 67mA RMS. Find the magnitude of the current through the inductor. Enter your answer in the space provided. Round your answer to one decimal place. Your answer should be in mA but do not enter the unit.

The concentration ratio of parabolic trough power plant is typically O a. from 30 to 40 O b. more than 1500 O c. less than 10 O d. from 10 to 20

8. Liquids with solid impurities a) Have higher dielectrie strength b) Of large size have higher dielectric strength c) Have lower dielectric strength as compared to pure liquids d) None of the above 9. Peak to peak ripple is defined as a) the difference between average de voltage and peak value b) the difference between maximum and minimum de voltage c) the difference between maximum ac and average dc voltages d) the difference between ac (rms) and average de voltages 10. In a Cockroft-Walton circuit, input voltage 100 kV load current 25 mA, supply frequency 100 Hz, each capacitor 10 nF. The optimum no. of stages for maximum output voltage is a) 1 b) 2 c) 10 d) 35

Help me with this. Tysm

circuits 48 49

1.1 Given the circuit in Figure 1, using Kirchoffs voliage law show that: jwME, Ez R1 + jwl1 R, R Figure 1 1.2 A ferromagnetic ring of cross-sectional area 800 mm and of mean radius 170 mm has two windings connected in series, one of 500 turns and one of 700 turns. If the relative permeability is 1200, calcula:e the self-inductance of each coil and the mutual inductance of each assuming that there is no flux leakage.

Damping ratio quettion.