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1. Explain the causes of flue gas condensation and how it can be stopped.
2. Explain the cause of soot formation on the heat exchanger and how it can be stopped.
3. Explain how carbon monoxide is formed.
4. Discuss furnace combustion air requirements.
A causal linear time-invariant continuous-time system has impulse respose h(t)=(sin t)u(t-2). Compute the output respone y(t) for all t is greater than 0. compute the output response y(t) when x(t)=u(t) -u(t-1).
Then give the logic equations or connections for each flip-flop D input, each CE (clock enable), and each MUX control input.
What type of material belongs to reflection spectrum A, what type to B? (Justify). Note the scale difference!
Explain the operation of the circuit. Demonstrate that the circuit functions as a clocked D flip-flop. - Neglecting base currents, if iDC = 50 μA, calculate the maximum power dissipated in the circuit.
The nameplate on a 25-MVA, 60-Hz single-phase transformer indicates that it has a voltage rating of 8.0-kV:78-kV. A short-circuit test from the high-voltage side (low-voltage winding short circuited) gives readings of 4.53 kV, 321 A, and 77.5 kW.
A 60 hertz, 3 phase transmission line has a toal seriesimpedance (Z) of (0.2 + j0.8) ohms per mile per phase and shunt admittance(Y) of (j5.31 E-6) mhos per mile per phase.It delivers 40MW at 220Kv ,with 90% poer factor lagging.
Find the maximum available average power at the interface shown in the figure.- Specify the load required to extract the maximum average power.
Calculate the potential difference Vab between two concentric spherical shells of charge. Assume that the inner shell has a radius a and chargeQ, and the outer shell has a radius b and charge-Q.
A group of technicians is gathered around a circuit that works with one signal generator but nit with the other. No one can figure out why one generator works but not the other. What might be happening.
A voltage source is in series with a 1 MΩ resistor and a100 picofarad capacitor. The voltage source is 10cos(2π*10^3t - π/6). What is the voltage across the capacitor
The meter constant of a single-phase 240 V induction watt-hour meter is 400 revolutions per Kwh. the speed of the meter disc for a current of 10 amperes at 0.8 p.f. lagging will be
Sketch, approximately to scale, the magnitude spectrum of the modulator output. Show all frequencies of interest.
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