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1. Can constant-volume fans be used in variable-air-volume systems?
2. Why are variable inlet guide vanes sometimes used for supply fans?
3. What is meant by a modulating damper?
The mixer phase detector characteristic shown in Figure exhibits a zero gain at the peaks, e.g., at ?φ = 0. A PLL using such a PD would therefore suffer from a zero loop gain at these points.- Does this mean the PLL would not lock?
Derive the weak form of a two-dimensional, steady-state heat transfer problem.- Derive the weak form of a simply supported beam problem.
How many sub-carriers make Resource Block (RB)? What is the minimum and maximum number of RBs an LTE system can have? What bandwidths do these minimum and
Design a single state amplifier that satisfies the following specifications. State the transistor used and show all equations. 1. The voltage gain is greater than or equal to 0.9 and less than or equal to 1.0 2. The source resistance is 10k ohms
At a location in Europe, it is necessary to supply 300 kW of 60-Hz power. The only power sources available operate at 50 Hz. It is decided to generate the power by means of a motor-generator set consisting of a synchronous motor driving a synchron..
Draw a circuit diagram for an LFSR with n = 6 that generates a maximum length sequence.
We consider a Rayleigh fading signal. Suppose that a single branch receiver has a 10% chance of being 5 dB below a certain SNR threshold γo. Determine the mean of the Rayleigh fading signal as reference to the threshold mentioned in the above, i.e...
Plot the squared residuals on Y axis of model 1 vs. Size and Beds on X axis (separate plots) and comment on the assumption of homoscedasticity in the variance of the error term.
The circuit given in Figure is purely resistive. - Letting Gj = I/Rj show the given equation.
The receiver has a noise bandwidth of 1 MHz, an effective input-noise temperature of 800 K, and a gain of 120 dB from its antenna input to its IF output.
Calculate the voltage at the feeding points A and B if the minimum potential of 220 V occurs at point C at a distance of 450 metres from the end A. Resistance of each conductor is 0·05 Ω/km.
A sequential circuit receives decimal numbers encoded in BCD one digit (4 bits) at a time, starting with the least significant digit. The circuit outputs are the 10's complement of the input number, also encoded in BCD least significant digit firs..
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