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A plant has two identical standby generator units for emergency power use. In the area of the generators, the normal noise level registers 81 dBA on the sound-level meter with the generators turned off. When one generator switches on, the noise level increases to 83.6 dBA.
a. Perform calculations to determine what the dBA reading will be when the second generator also turns on (both are on).
b. If both generators are on for a full 8-hour shift, will OHSA's PEL be exceeded? Will the AL be exceeded? Explain.
Use Laplace transform techniques to find the solution to the following differential equation given that x = 1/3 at t = 0.
Analysing spectrum anlyser output, A spectrum analyzer is connected to an unknown signal. The spectrum analyzer displays the power level of signals in dBm vertically and frequency horizontally. The spectrum of the unknown signal creates the follow..
A circular loop TV antenna with 0.01 m2 area is in the presence of a uniform -amplitude 300 MHz signal. When oriented for maximum response, the loop develops an emf with a peak value of 20 mV. What is the peak magnitude of B of the incident wave?
A terrestrial radio link transmits a CDMA signal from a base station using a spreading code with a chip rate of 1.0 Mchips per seconds. The message data rate of the signal is 10 kbps.
Suppose station A and B are interconnected through two parallel unreliable links, where each link has a failure probability of 0.1. Calculate the average seconds per day when A and B lose communication.
Implementation of the project with the analog and digital modulation techniques
From what distance must the electron be red if it is to just fail to strike the plate?
In comparing the behaviour of an n-channel MOSFET with a p-channel device having identical geometry and threshold voltage, it is found that the n-channel FET has a greater drain current than that of the p-channel FET.
Polyethylene with ?_r = 2.25 is used as the insulating material in a lossless coaxial line with a characteristic impedance of 50 Ω. The radius of the inner conductor is 1.2 mm.
Determine the capacitance required in a half wave rectifier to produce a ripple voltage less than 0.2V. Assume that the input is a 60Hz signal with maximum voltage VM=100V
The circuit arrangements for each of the installations, the final circuit cable selection, the maximum demand estimation, and the circuit protection arrangements should be designed.
Ziegler-Nichols Open Loop Tuning Often, when working with a faster loop, many people will opt only for a PI control philosophy
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