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1. List agencies that establish standards for gas furnaces.
2. List agencies that perform testing to verify equipment performance.
3. Explain AFUE. What is the minimum AFUE rating for a new furnace in the United States?
Describe what changes the engineer should make to either the flow rate of the coolant or the steam to keep the system functioning optimally.
Voltage drop across R6 = 12 ohm resistor
There is a damping coefficient of 18 lbs(ft./s). A weight of 96.6 pounds is attached to the spring, moved to 5 ft. above the equilibrium point and released with an initial velocity of 45 ft./s. Do not forget to convert the weigh to mass (slugs) us..
The current in the bulb depends on the time t according to the relation I = (0.807 A) sin [(272 rad/s)t]. (a) What is the frequency of the alternating current (b) Determine the resistance of the bulb's filament. (c) What is the average power deliv..
Suppose we had connected at the input to channel 0 a circuit of the type that attenuates all frequencies above 50 Hz at a rate of 6 dB/octave. What will we then see in the output when we apply 4960 Hz at the input
What is the irreversibility and the change in total availability for this process if the local environment is at 14.7 psia and 70.0°F?
Suppose a radio frequency signal is sampled at fs = 500 MHz. What frequency bands from 250 MHz to 1000 MHz will alias into the FM band, 88-108 MHz
A linear time-invariant continuous-time system responds to the following inputs with the corresponding outputs:Ifx(t) = u(t), then y(t) = 2(1- e^-t)u(t) and if x(t) = cost,then y(t) = 1.414 cos(t - pi/4).
What is Intermediate switch, its construction, working principle and uses in different wiring (lighting etc) circuits?
If an RC circuit is supplied with 24 VDC and the circuit is in its third time constant, how much voltage wouldbe present across the capacitor
Charges +Q and +3Q are separted by a distance 2m. A third charge is located such that the electrostatic system is in equilibrium. Find the location and kthe value of the third charge in terms of Q.
The machine is to be operated as a motor, with a terminal voltage of 400 V (phase voltage). The armature current is 50 A, with power factor 0.85, leading. Determine Eb, field current, torque developed, and power angle δ.
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