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1. Define hydronics. What was the common choice for hydronic piping in the past, and how is that changing?
2. What are the advantages of hot-water heating systems based on overall comfort?
3. What are the disadvantages of hot-water heating systems?
How to Prevent the high Inrush Current in Capacitor Switching? And what the Methods To Insert capacitors in order to prevent inrush current ?
An amplifier represented with an input resistance of 10k ohm, an output resistance of 1k ohm, and the open circuit voltage gain of 1000 V/V is connected to a signal source of 10 mV peak amplitude with an internal resistance of 100k ohm.
In AM, spectral overlap is said to occur if the lower sidebandfor positive frequencies overlaps with its image for negativefrequencies. What condition must the modulated wave satisfy if weare to avoid spectral overlap
A rectagular waveform has a 50% duty cycle (hight for 1/2 a cycle and low for 1/2 a cycle). It goes between two voltage levels of -3 V (low) and +8 V (high), and has a period of 100 μs. determine the average voltage of this waveform and the RMS vol..
A synchronous generator having a synchronous reactance of 1.0 pu is connected to in- finite bus-bars of 1.0 pu voltage through two parallel lines each of 0.5 pu reactance.
If voltage and resistance are measured as a means of indirectly measuring power, show again that if the relative uncertainties in the direct measurements are +2%, that the relative uncertainty in the indirectly measured power will be +6%.
The following measurement were made on a two-port resistive circuit. With port 1 open, V2 =15V, V1 = 10 V, and I2 = 30 A. With port 1 short-circuited, V2 = 10 V, I2 =4 A, and I1 = -5 A. Find the parameters of the z-parameter two-port.
An object of mass m aquires a velocity as given in Figure 1.61.
Show that aliasing will occur if the signal y(t) = e^-t(sin)(2t) is sampled with T=0.2 by finding the z transform of the sampled sequence and then finding the inverse z transform.
I. The passband edge frequencies of a BANDPASS BUTTERWORTH analog filter are 1200 Hz and 1400 Hz, whereas the stop band edge frequencies are 600 Hz and 2000 Hz. The stop band attenuation is 14dB.
Assume that one of the pumps uses a1/4hp DC shunt motor with an input voltage of 115VDC that pulls 1.6A running at 1500 rpm. The filed resistance for the motor is 600 ohms and the armature resistance is 8.5 ohms.
report all design procedures, Matlab simulation results (H(jw) v.s. w), schematics and frequency response simulation results of the filter. use any circuit simulator including Orcad, Multisim and circuit maker. You need to use OP amp to increase g..
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