Interview Questions Answers in Instrumentation, Electrical Engineering

chhote lal

{ City } agra
< Country > india
* Profession * instrumrntation engg. (i&c)
User No # 48607

Total Questions Posted # 5
Total Answers Posted # 4

Total Answers Posted for My Questions # 9
Total Views for My Questions # 24750

Users Marked my Answers as Correct # 48
Users Marked my Answers as Wrong # 10

Questions / { chhote lal }

Questions Answers Category Views Company eMail

why we connect digital multimeter in series for dc current measurement and parallel for dc voltage measurement.

4 Instrumentation 10428

why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

Electrical Engineering 2217

who's take first position in process in the timing of new installation flow transmitter and control vavle. give the answer with logical trick.

2 Instrumentation 5075

how to calculate the phase diffrence beetween given two equetion y= 15sin(wt+pi/3) and y=10sin(wt-pi/4)

1 Electrical Engineering 3078

How to connect another 24 volt dc power supply in circuit when previous power supply has become weak.what is the connection?

Bhole Baba Dairy Industries,

2 Instrumentation 3952

Answers / { chhote lal }

Question { 11085 }

Tell me about PID Tuning and what is PID.

Answer

by the help of P we calculate the error signal
Error signal=SP-PV (How Much)in the timming of pid tunning.
By the help of I we Remove the offset error-it will decide
how long the error exit in the cycle inthe timming of pid
tunning.
And by the help od D we fasten the control action-it will
decide how fast the control action to remove the error
without any overshoot for failure cycle.
at last
P=How Much(present)
I=How Long(past)
D=How Fast(future)

Is This Answer Correct ?

9 Yes

0 No

Question { 27237 }

how we can calibrate level transmiiter in field?

Answer

it is a theortical calibration which done before mounted
Level Transmeter in the tank
suppose tank hieght is 10 meters
10 meter = 1000 cm
1000 cm = 10000mmwc
we know that 10000mmwc = 1kg/cm2
so we calibrate Level Transmitter 4mA at 0 kg/cm2(Air
Pressure)
and 20mA at 1kg/cm2 (Air pressure)
thus we calibrate Level transmitter

Is This Answer Correct ?

12 Yes

6 No

Question { 10919 }

What is the relationship between Sensor

Answer

We Know that any instruments have three parts
1-sensor
2-transmitter
3-reciever
where sensor taking actual mesurment of process
(temp,pressure,speed etc.)and convert to electrical signal.
and transmitter take o/p electrical signal of sensor and
transmit for reciever with amplitiude.

Is This Answer Correct ?

3 Yes

0 No

Question { 10752 }

what is the full formof HART

Answer

higway adressable remote transducer

Is This Answer Correct ?

24 Yes

4 No