Question

7) What type of С RTD C IC C Thermocouple C Thermistor sensor 8) You have a load cell (force transducer) with a range of 0 to 12,000 lbs, an output of 4-20 mA, and a supply voltage of 24 vdc. What is the output current if you apply 6,800 lobs of force? C 17.07 mA С 907 mA C 5.07 mA C 13.07 mA 9) You have a flow meter with a 4-20 mA output orresponding to a flow range of 1,000 to 10,000 liters of water per minute. If you read 9.27 mA on the output,what is the flow? С 5964 Vrnin С 39641/min С 49641/min C 2964 1/min 10) Your torque transducer is excited by a 5 vde supply. The range is 0 to 350 ft-lbs, proof is 400 ft-lbs, and the output is 3mV/V. What output would you read if we apply 225 ft-lbs? С 193mnv С 3.21V C 9.64 mV С 4,52 mV

Answer 1

7 )

answer is " Thermistor "

option " D " is correct.

here thermistor is a temperature sensor. it is a combination of thermally sensitive resistor.

actually it is a special resistor, changes its physical resistance, when temperature changes.

8 )

the out put current is i = 4 + ( 16 x 6800 / 12000 )

= 4 + 9.0666

i = 13.0666 mA

i = 13.07 mA

9 )

9.27 =4 + ( 16 ( x-1000) / 9000 ))

( x-1000) / 9000 ) = 0.329

x = 3964 l/min