What does a fire detector detects?

Question Posted / gautam_etrx.engg

4 Answers
8478 Views
GAIL, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What does a fire detector detects?..

Answer / andy

electro-catalytic detectors detects change in resistance
whereas ir-type detectors detects changes in intensity of IR
spectrum and alerts the system whenever they detects a fire

Is This Answer Correct ?

2 Yes

0 No

What does a fire detector detects?..

Answer / gautam_etrx.engg

Ultraviolet rays (Earlier it was infrared rays)

Is This Answer Correct ?

2 Yes

1 No

What does a fire detector detects?..

Answer / faiyaz

Fire detector detect the fire like UV-ultra violet ray and IR means Infra ray both are fire one is small fire and one is big fire generally used in Hazard area like compressor and condensate area

Is This Answer Correct ?

0 Yes

0 No

What does a fire detector detects?..

Answer / saumyajit

in fire detectors normally we use photo resistors,which is used in wheatstone bridge circuit,in photo resistor conductivity changes as light intensity change.or we cud use photo diodes.(PN-diode,PIN-diode,avelanche diode)

Is This Answer Correct ?

0 Yes

1 No

Post New Answer

More Instrumentation Interview Questions

Can we get the outpot in c without using getch fiction? Answer is yes but output will stay on display 4 only few second.... But can we get output without using getch and also output will hold on the display...?

1 Answers

what are the different types of communication cables used in automation and what are the difference in the cables

1 Answers KN,

why are set -10vdc in bently neveda vibration system.

4 Answers

Why is a dead weight tester so called by that name?

1 Answers SGS,

What is DDC-MIS?

3 Answers

how to do dynolab wind speed sensor loop test, how to simulate value,i have simulate mA 4-20mA but not responding in DCS faceplate, please kindly advice me any one.

0 Answers

what is reason behind boiler drum level transmitter range put -450 to 0 mmh2o.

1 Answers JP Group,

What are the different types of temperature sensors and the principle they work on?

1 Answers GAIL,

hello this is dhinakar i am completed my instrumentation engg . recently i got job in sugar industry side. i like to ask one question can any one say what are the things i have to follow know more about industrial instrumentation,,,,,,,

6 Answers

What is linearity of RTD over 0 to 200 degC?

1 Answers Honeywell,

IF TX SHOWS SLOW RESPONSE, WHILE A CLOSE LOOP AND WHEN WE PUT THE CONTROLLER ON MANUAL THE PROBLEM RECTIFIED, SO WE CAN SAY THE PROBLEM IS IN

1 Answers IFFCO,

What is the Difference between CNC and PLC

1 Answers

For more Instrumentation Interview Questions Click Here