SOLVED

11.The overall noise-intensity versus frequency curves for semiconductor devices would have what type of shape? A.Angular B.Square C.Bathtub D.Uneven 12.Which of the following did French mathematician Jean Baptiste Joseph Fourier develop? A.A means to break down any periodic waveform into a series of sine and/or cosine waves at multiples of the fundamental frequency. B.He created thermal interactions between free electrons and vibrating ions in a conductor. C.The formula for calculating shot noise contributed for a complete transistor. D.The relative measure of the desired signal power to the noise power. 13.Which of the following pieces of equipment would be considered advanced test equipment? A.Digital multimeter (DMM) B.Broadband oscilloscope C.Spectrum analyzer D.RF generator 14.When troubleshooting, why would you perform voltage and resistance checks? A.To check for signals B.To eliminate induced failures C.To observe frequency spectra D.To isolate defective components 15.Why would you use Friiss’s formula? A.To provide the overall noise effect of a multistage system. B.To break down any periodic waveform into a series of sine and/or cosine waves at multiples of the fundamental frequency. C.To establish that different users can share bands of frequencies provided that each user was assigned exclusive use of a frequency range within that band. D.To show how the construction of a square wave can be seen to be made up of a number of sinusoids. 16.What does the graphical display produced by an oscilloscope represent? A.Signals in the frequency domain B.Time-domain representation C.Amplitude of each frequency component D.Amplitude characteristics 17.____________ consists of a mixture of signals at all frequencies and at randomly occurring amplitudes. A. Decibel units B. Frequency C. Bandwidth D. Noise 18.What do modulated signals convey? A. Information B. Voltage C. Noise D. Power 19.Which of the following could cause a complete failure in a piece of equipment? A.Sporadic circuit operation B.Open power resistors C.Poor soldering D.Poor alignment 20.If you were troubleshooting a piece of equipment and you heard a frying noise, what would this indicate? A.A wire is loose B.The power is weakening C.A component is about to fail D.The equipment has been abused