Q- Which of the following is Close loop system -
a-)respiratory System b-)traffic light system c-)washing
machine d-)Room heater
my option is A, what is our take on option B & C
Answer Posted / rafaqat
Well!!!! close loop system is kind of atumatic system that
have a feed back device which measure the actual value and
then feed this value back to controller then controller
compare the setpoint & the actual value (get from feed back
device)after this control generate + or - signals/
correction to final control element ( that is responsible
for controling the variable quantities).
so if your system have a controller with feedback device,
final control element then it will be a close loop system
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
can any send me a forbes marshall dtron 316 manual
how can i calibrate the temperatuture gauge used by temperature bath(dry block) i mean step by step procedure?
what is metal of piston ring
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
Can any one send me IOCL instrumentation question papers.. i dont know the pattern of the questions and what to prepare can any one help me on this .. my email id is anwarnishil@gmail.com
Why is the orifice tab provided?
I want to measure and control level in tank of size 10*5 filled with gasoline, so plz give me the solution with clear details. how to select transmitter and sensors.
what is actual drum level and compensated drum level?
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
how pressure transmitter work, what is its principal to measure and how its generate signal. for pressure transmitterinstallation which precautions must be taken ??
What is the exact differences between HART,FOUNDATION FIELDBUS,PROFIBUS?
which processor is used in dcs.
Why thermo wells are used? What materials are used in thermo wells?
I have 0.75mm sq multicore cable (IS type) , can use instead of same type but 1.5 sq mm cable ? Note : The distance is around about 150 meter.
Specific gravity.