can anybody tel me how a vfd or any field instrument communicates/interface with plc/scada/cs.1125
1)unmovable objects have frequency or not?if that object have frequency,how do we measure and transmit? 2)how do u measure the continuity without multimeter? 3)we put 24volt dc supply in railway track how many distance it is traveled without voltage drop?1 1788
Consider a level troll. i am getting a correct value in 4mA and 20mA. the value in the middle(30 to 60%)is disturbed and i am not getting the appropriate value. what is the solution to normalize the level and to get the correct value..
how to measure temperature from resistance of rtd?and how to measure temp from voltage of thermocouple?is there any formulas?3 7806
1.what is beta in control valves? 2.what is the condition followed by light in LASERs? 3.1kg/cm2=?psi 4.Integral action reduces what? 5.about vena contracta 6.a simple RC circuit 7.thermistor material's temp coefficient of resistance 8.if wave passes through the thicker area of a chord to a thinner area what changes will occur to wavelength? 9.if 4-20 mA represents 0-10 kg/cm2 what will be the current when pressure is 5 kg/cm2.................1504
Pl send the model question paper of mahagenco account officer post1791
if in a level tx height is given, how u calculate the ranges of the tx?2 5170
what are the problem's will accure in dcs or plc hadware and what are the solution for it?2 3529
whey we conect ammeter in series and voltmeter in parallel in circuit1 7159
On LPG sphere tank we used LIT for level indication.High side port is connected to the bottom of the tank while low side port connected to the top. I would like to know how to fill the glycerin on its low side with two condensing pot installed,one from top and the other one for its drain line.Please I need your expertise...thanks1 3903
HI, can anybody give details about GAS TREATMENT PLANT CONSTRUCTION,as INSTRUMENTATION ENGINEER what are the responsibilites.what are the instruments mainly instrumentation engineer will deal with1142
how magentic flow tx. vortex flow tx & ultrasonic flow tx works and its prinicle?its callibtration prosedure?1 3076
what is dry leg and what is wet leg?3 17112
how to calculate range of level transmitter?
How will you test a transistor with a multimeter?
Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is email@example.com
Definition of reverse and acting controllers:
What is limitation of the ht.of the displacer of a level trol?
Explain PID controller tuning & any one method used for it.
Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?
Explain the combusion chamber
What is furnace draft control?
Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?
please send data bank of quetions answers on analytical instrumentation.
How ejector(or)evactor air pump is working in thermal power plant?
which type of signal used in instrument?
Can I calibrate the Electromagnetic Flow Meter on line and How.
what is moisture probe? What are there types? What is there working principle and how they works? guys this is one of technical question I had ask in interview. If you know its answer please let me know. The interviewers were more interested in microwave moisture probe, so if you find its any link please just forward me on my mail firstname.lastname@example.org Thanks in advance.