Answer / suresh xavier

there are two parts one is the sensing part and other is
converter. sensing part contains zirconium and heating
mechanism. the main caractristic of Zr. is at higher temp.
(= 750 deg.) the proprty of Zr., it allows the O2 ions to
conduct. to maintain the Zr. at 750 deg. normally we use
platinum electrode on the both side to create a heating
mechanism. when the probe is placed in the flue gas path one
side of the probe will maintaine the span gas (instrument
air contains 21% O2) and the other end is in the flue gas
path contains unknown % of O2. thus it will create a diff.
partial O2 on the each side of the cell. electrode in
contact with higher O2 pressure act as -ve electrode and it
will create an emf. the coverter pck that emf and using the
calibration produce the % O2.
calibration.
for zero calibration use zero gas (0.98% O2 ~~ nitrogen gas)
is used
for span we use 21% O2 (instrument air)

Answer / arsi vadher

what is out in MV and % of oxyzen when on Both side pressure is Atmospheric?

Answer / navneet jain

900 mv and oxygen 0 %

why we r opening HOT BYPASS valve during startup of a compressor?

0 Answers   Hamsco,

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this site is owned by an nonsense

0 Answers   Bhel, Prolific,

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Paper Details: company -- Hindustan Copper Limited post -- GET 2008 Date -- 03.08.2008 Dept.-- Electronics?Instrumentation Aptitude -- 70 Technical-- 80 Total Time -- 2hr 30min I have listed the question I could able to remember 1. BCD equivalent of 43 2. value of K for stability of a system from a given equation 3. transformer connection for darlington connection 4. damping of balastic galvanometer 5. advantage of chart-pen recorder over CRo 6. CRO - how to change bandwidth 7. questions on CRO construction 8. reverse saturation current of si diode 9. advantage of wire wound resistance over carbon resistance 10. core material for a small coil 11. max fanout-- TTL/ECL/CMOS/MOS 12. component of resistance of monolithic IC 13. functions of capacitors in multivibrators 14. to change a sawtooth signal into a square wave we use-- schmit trigger/ schottkey diode/ zener diode 15. relation b/w á & â in transistor ckt 16. function of SiO2 layer in fabrication 17. 3 questions on ODD MAN OUT

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WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

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What is governor of turbine?

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