Answer / shri..

In case of fire it should give alarm & it should indicate
where fire is occurred.

Shriram

Answer / nagarjuna

THERE IS A DEVICE WHICH SENDS RAYS FROM ONE TERMINAL TO
OTHER TERMINAL(LIKE CAPACITOR)
LIKE
-------/ /-------
BETWEEN THESE A RAY WIL TRAVEL ,IF FIRE
WILL OCCUR MEAN ,SMOKE WILL FORM ,THAT SMOKE WILL BARRIER
THE LIGHT ,SO LIGHT WILL NOT ENTER FROM ONE TERMINAL TO
OTHER .SO THAT THE SENSOR SENSES THAT AND BLOW ALARM.

Answer / bmw6633@gmail.com

when ever there is any case of fire sensor detects smoke
and give alarm so that only the hazards teem go in to do the
need full

Answer / bmw6633@gmail.com

when ever there is any case of fire sensor detects smoke
and give alarm so that only the hazards teem go in to do the
need full

Answer / shalini

Fire Alram System is an automated system for monitoring the
Fire / smoke incidents in a building. All the smoke
detectors, ineregen system , vesda system, etc will be
integrated to FA system and alram activation will pop up in
FA system during any abnormlities

why field resistance is higher than armature resistance in dc machines? and why filed resistance is kept at min value at starting in same time of armature resistance at max value?

4 Answers  

v=I*R, i.e V is directly proportional to I. now P=V*I. so V=P/I. thus v is inversely proportional to I. so what is the correct one? If both are correct than for which kind of condition this 2 differ

3 Answers  

If one ct is reversely connected in Y system what will effect in kwh and kvarh meter?

1 Answers  

How test for Ddo vector group test condition?

0 Answers  

What is the main cause of magnetism?

0 Answers  

ult of expression 'document.FrmQF.myem

0 Answers  

What is the effect of impedance on the heat losses in case of AC system??? Does heat losses really depends on the impedance or depends only on resistive component only..??

4 Answers  

how can we calculate that how much capacitor is needed for a system to increase the pf?

5 Answers  

what is hysteresis loss?

4 Answers   PSU,

How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  

how to fit 3 HP crompton gear motor with conveyor with the use of staring delta starter or ordinary starter?

0 Answers  

What happen to alternator if prime mover fails?

4 Answers