Interview Questions Answers in Instrumentation

m. saqib ali nafees

{ City } sargodha
< Country > pakistan
* Profession * technician
User No # 84044

Total Questions Posted # 5
Total Answers Posted # 4

Total Answers Posted for My Questions # 9
Total Views for My Questions # 34090

Users Marked my Answers as Correct # 24
Users Marked my Answers as Wrong # 4

Questions / { m. saqib ali nafees }

Questions Answers Category Views Company eMail

A RANGE OF TRANSMITTER IS (0-400)B mm abs what is "B"?

HCL,

1 Instrumentation 5430

what is basic difference between motion balance and force balance in pneumatic instrument?

Sterlite, TCL,

Instrumentation 9552

If an Instrument has 550 ohm internal resistance and the cable used for that instrument is 0.5 ohm per meter resistance. If the voltage is 12volt.How much length cable can be used?

2 Instrumentation 5284

On liquid service if PT Head is 18 meters. How much pressure will be exerted on it. If Transmitter is not in service?

1 Instrumentation 4302

If an Instrument has 550 ohm internal resistance and the cable used for that instrument is 0.5 ohm per meter resistance. If the voltage is 12volt.How much length cable can be used? Please tell me its Calculation formula.

MOL,

5 Instrumentation 9522

Answers / { m. saqib ali nafees }

Question { GNFC, 134421 }

What is the basic principle of vibration measurement by
BENTLY NEVADA vibration measurement system? and Why it
gives the -ve voltage output?

Answer

AN EDDY-current probe works on the basic magnetic principles
(Faraday's law and lenz's law) when an electrically
conductive material comes close to the probe we know that
alternating current pass though coil this alternating
current produce EMF in electrically conductive material
(observed surface) by Faraday's law. This produced EMF
oppose its source by lenz's law. ( when the current through
a coil changes and an induced voltages is created as a
result of the magnetic field, the induced voltages in such a
direction that its magnetic effect will oppose the Change
that produce it.) The output voltage vary according to gap
between probe and observed surface by these two laws.

Is This Answer Correct ?

22 Yes

3 No

Question { 5009 }

which gas or which liquid is filled in capillary of dial
type temperature indicators on power transformers

Answer

Silicon oil

Is This Answer Correct ?

0 Yes

0 No

Question { 5284 }

If an Instrument has 550 ohm internal resistance and the
cable used for that instrument is 0.5 ohm per meter
resistance. If the voltage is 12volt.How much length cable
can be used?

Answer

Thanks for answer, please tell me its formula

Is This Answer Correct ?

0 Yes

1 No

Question { MOL, 9522 }

If an Instrument has 550 ohm internal resistance and the
cable used for that instrument is 0.5 ohm per meter
resistance. If the voltage is 12volt.How much length cable
can be used? Please tell me its Calculation formula.

Answer

thanx to all

Is This Answer Correct ?

2 Yes

0 No