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You Are On Multi Choice Question Bank SET 1042

52101. The average value of a sine wave is .707 times the peak value.



52102. The letter in the Greek alphabet used to represent wavelength is __________.





52103. The __________ is defined as the ratio of a pulse width (positive or negative pulse or cycle) to the overall period of time of the wave.





52104. What are the two main applications for ac?





52105. The distance that a signal's energy can travel in the time it takes for one cycle to occur is called the signal's:





52106. One oscilloscope selector knob that allows the major and minor divisions of the graticule to be used to determine a signal amplitude value is called the:





52107. If current varies periodically from zero to a maximum, back to zero, and then repeats, the signal is:





52108. What voltage will an ac voltmeter display?





52109. The difference between analog voltage represented by two adjacent digital codes, or the analog step size, is the:





52110. The primary disadvantage of the flash analog-to digital converter (ADC) is that:





52111. A binary-weighted digital-to-analog converter has a feedback resistor, Rf, of 12 k. If 50 A of current is through the resistor, the voltage out of the circuit is:





52112. What is the major advantage of the R/2R ladder digital-to-analog (DAC), as compared to a binary-weighted digital-to-analog DAC converter?





52113. The resolution of a 0–5 V 6-bit digital-to-analog converter (DAC) is:





52114. In a flash analog-to-digital converter, the output of each comparator is connected to an input of a:





52115. Which is not an analog-to-digital (ADC) conversion error?





52116. Sample-and-hold circuits in analog-to digital converters (ADCs) are designed to:




52117. A sample-and-hold circuit samples an analog value and holds it long enough for the analog-to-digital conversion to occur.



52118. Incorrect codes are a form of output error for a digital-to-analog converter (DAC).



52119. If we double the number of bits in our digital representation of a number from 4 to 8 bits, we double the relative accuracy of the conversion from digital to analog.



52120. The flash method of analog-to-digital conversion (ADC) uses comparators that compare reference voltages with the analog input voltage.



52121. A digital-to-analog converter (DAC) is said to be nonmonotonic if the magnitude of the output voltage increases every time the input code increases.



52122. The relative accuracy of a digital-to-analog converter (DAC) is determined by settling time.



52123. The key advantage of the successive approximation analog-to-digital converter (ADC) is its conversion speed.



52124. One way to determine the resolution of a digital-to-analog converter (DAC) is to compare the ratio of one step voltage to the maximum output voltage.



52125. In a binary-weighted digital-to-analog converter (DAC), the values of the input resistors are chosen to be proportional to the binary weights of the corresponding input bits.



52126. An 8-bit digital-to-analog converter (DAC) has a resolution of 0.125 V.



52127. ________ analog-to-digital converters (ADCs) use no clock signal, because there is no timing or sequencing required.





52128. ________ analog-to-digital converters (ADCs) have a fixed value of conversion time that is not dependent on the value of the analog input.





52129. The problems of the binary-weighted resistor digital-to-analog converter (DAC) can be overcome by using ___________.





52130. The number of binary bits at the input of a digital-to-analog converter (DAC) is known as ________.





52131. Who wrote "Kavirajamarga"?





52132. The characteristic that a change of one binary step on the input of a digital-to-analog converter (DAC) should cause exactly one step change on the output is called ________.





52133. Inaccurate analog-to-digital conversion may be due to ____________.





52134. A binary-weighted resistor used in a digital-to-analog converter (DAC) is only practical up to a resolution of ________.





52135. Which of the following is a type of error associated with digital-to-analog converters (DACs)?





52136. A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. What is the analog output for the input code 0101.





52137. A binary-weighted digital-to-analog converter has an input resistor of 100 k. If the resistor is connected to a 5 V source, the current through the resistor is:





52138. What is the resolution of a digital-to-analog converter (DAC)?





52139. A group of men ......... creating trouble .?





52140. Digitizing a signal converts it from digital to analog.



52141. Thirunelveli in Wayanad is known as?





52142. In digital electronic circuits, information is first converted to a coded group of pulses.



52143. Digital systems using the 10-state system are more accurate than those using the two-state system.



52144. The decimal code system used ten levels of voltage.



52145. Most of the input signals applied to a computer for storage or processing are digital in nature.



52146. The coded group of pulses in a digital electronic circuit consists of a series of HIGH and LOW voltages.



52147. A data conversion system may be used to interface a digital computer system to _________.





52148. Sensor outputs destined for a digital computer system must first be processed by __________.





52149. The two basic types of signals are analog and:





52150. Who is the first Indian gold medalist in paralympics?





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