What do the vertical parallel lines on a ladder type wiring diagram represent?
A) Electrical circuits B) The power supply C) Loads D) Controls
B
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What is the main difference between a national park and a national preserve?
What will be an ideal response?
Figure P17.13 compares the bit error rate (BER) performance of BPSK transmission over an AWGN channel with and without error control coding. a. At a BER of 10?5 what is the SNR required to transmit bits over the channel without coding? b. What is the SNR required to obtain BER 10?5 over the channel with coding employed? c. The coding gain is defined as the difference between the SNRs required to obtain a certain BER using an uncoded and a coded system. The coding gain represents the reduction in signal power when using coding to achieve the same level of performance as that of a scheme without coding. What is the coding gain of this coding scheme at a BER 10?5?
From a pipe that is 56 inches long, you must cut one piece that is 12 inches and a second that is 20 inches. Once you are done, how long will the pipe be, in inches?
The inventory of a scrap pile is as follows: Channel iron, 87” Plate steel, 147” Key stock, 45” Pipe, 69” Flat iron strap, 208” A pipe support is welded using the following materials from the scrap pile: Channel iron, 61” Plate steel, 106” Key stock, 39” Pipe, 22” Flat iron strap, 189”
Parts availability has three options:
A. Must, should, could B. Yesterday, today, tomorrow C. In stock, take out, delivery soon D. In stock, locally available, must order