What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.

2216

(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.

4037

what is the imbustion control loop

1879

how many maximum enter 2mm Dia solid cylindrical pipe into 8mm Dia hollow cylindrical pipe. give answer with calculation.

2039

all types of liquid analyzer principle with drawing?

1952

What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

3401

in mass flow meter what is drive friquancy ?

2091

How to Calibrate Temperature Switch in field

1312

State some of balance principle’ advantages?

1176

What is intrinsically safe system?

1140

1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?

1640

Draw block digram for well head from well to shipping pump?

2170

How do bending tubing provide better measurement than using tubing fittings such as elbows?

1937

how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

1886

Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in

2070