ECET 365 DeVry Week 2 Quiz

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ECET 365 DeVry Week 2 Quiz

ECET365

ECET 365 DeVry Week 2 Quiz

  1. Question :(TCO #5)Identify the step size for an 8-bit analog-to-digital converter with Vref= 2.5 VDC?
  • 10 millivolts
  • 25 millivolts
  • 4.9 millivolts
  • 5 volts
  1. Question :(TCO # 5)How many steps are available with a 10-bit ADC?
  • 10
  • 1024
  • 512
  • 256
  1. Question :(TCO #5)What is the cutoff frequency for a low-pass filter with a resistor R = 3000 and a capacitor C = .01 µf?
  • f = 5.3 KHz
  • f = 3300 Hz
  • f = 120 KHz
  • f = 6 KHz
  1. Question :(TCO #5)A band-stop filter is a filter that _____ frequencies below low-limit and above high-limit frequencies and _____ frequencies between the limits.
  • blocks; blocks
  • passes; blocks
  • blocks; passes
  • has; blocks
  1. Question :(TCO #5)A bridge with R1= 5.1 K, R2= 2 K, and R3= 15 K can be at null if R4is _____.
  • 10.5 K
  • 5.88 K
  • 588
  • 1 K
  1. Question : (TCO #5)An instrumentation amplifier with two buffers has a feedback resistor of 100 K. The two resistors from the buffer’s output to the input of the last stage OP-Amp are 1 K resistors. Voltage levels to the non-inverting buffer inputs. Voltage levels to the non-inverting buffer inputs are V1= .06 volt and V2= .02 volts. What is Voutof the instrumentation amplifier?
  • 4 Volts
  • 20.4 Volts
  • 3.3 Volts
  • 15.3 Volts
  1. Question : (TCO #5)An embedded system with an 8-bit analog-to-digital converter is connected to a transducer with an output voltage of 10 millivolts. This signal is amplified by an amplifier with a gain of 25. Assume that this signal level is appropriate for the ADC input. If the reference voltage of the ADC converter is 5 volts, what will be the output of the ADC in binary form?
  • 01100110
  • 00110011
  • 00001101
  • 01111011
  1. Question: (TCO #5)An 8-bit analog-to-digital converter has maximum output voltage of 2.5 VDC. What is the reference voltage to this ADC?
  • 2.5 VDC
  • 5 VDC
  • 1.25 VDC
  • None of the above
  1. Question : (TCO #5)A well-behaved analog signal with a frequency of 20 kHz is being sampled. What is the sampling frequency if frequency aliasing occurs?
  • 90 kHz
  • 40 kHz
  • 85 kHz
  • 60 khz
  1. Question : (TCO #5)To model a nonlinear transducer, one can _____.
  • use empirically determined nonlinear equation
  • use a piecewise linear system
  • use a lookup table located in memory
  • All of the above