NCATT AET 200-250 EXAM REVIEW
QUESTIONS WITH CORRECT
ANSWERS
209) What do the blocks along X-axis represent? - Answer-Time or Sweep
210)What is the peak-to-peak voltage of the sine wave if each block represents 50V? -
Answer-200V
211) What is the RMS voltage of the sinewave is each block represents 50V? - Answer-
70.7
214)What is the resistance and tolerance of the resistor above (Y/Blk/Vio/Gold)? -
Answer-400M ohms +/- 5%
213) [Fig.2 above] Which transistor is illustrated correctly? - Answer-1
212) [Fig.1 above] What would cause the light not to illuminate? - Answer-R2 open
215) What type of transducer is used when large scale movement is required? -
Answer-Potentiometers
216) In a photovoltaic transducer (solar cell), the output voltage is directly proportional
to the what? - Answer-Cell surface area exposed to the light
217) What is the main disadvantage of using the potentiometer transducer? - Answer-
Uses a finite torque to change the measurand
218) in differential transformer, what measured is changed to change the electrical
output? - Answer-Movement of the core material
219) As the wire in a wire strain gauge is stretched, it's resistance will do what? -
Answer-Increase
220) What type of transducer changes its resistance when temperature changes? -
Answer-Thermistor
221) The thermocoupled transducer will increase its' output voltage when heat does
what? - Answer-Increases
QUESTIONS WITH CORRECT
ANSWERS
209) What do the blocks along X-axis represent? - Answer-Time or Sweep
210)What is the peak-to-peak voltage of the sine wave if each block represents 50V? -
Answer-200V
211) What is the RMS voltage of the sinewave is each block represents 50V? - Answer-
70.7
214)What is the resistance and tolerance of the resistor above (Y/Blk/Vio/Gold)? -
Answer-400M ohms +/- 5%
213) [Fig.2 above] Which transistor is illustrated correctly? - Answer-1
212) [Fig.1 above] What would cause the light not to illuminate? - Answer-R2 open
215) What type of transducer is used when large scale movement is required? -
Answer-Potentiometers
216) In a photovoltaic transducer (solar cell), the output voltage is directly proportional
to the what? - Answer-Cell surface area exposed to the light
217) What is the main disadvantage of using the potentiometer transducer? - Answer-
Uses a finite torque to change the measurand
218) in differential transformer, what measured is changed to change the electrical
output? - Answer-Movement of the core material
219) As the wire in a wire strain gauge is stretched, it's resistance will do what? -
Answer-Increase
220) What type of transducer changes its resistance when temperature changes? -
Answer-Thermistor
221) The thermocoupled transducer will increase its' output voltage when heat does
what? - Answer-Increases
