1. State the advantages of hot wire instruments
Ans - a) Measure both AC & DC , B) Less sensitive to stray magnetic field

2. Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference
Ans- a) Peltier , b) Thomson , c) Seebeck

3. Typical specifications for design stipulates the gain margin and phase margin to be respectively
Ans- a) >1.7 and >30 deg , b) <1.7 and <30 deg

4. A negative gain margin expressed in decibels means a/an __________ system....
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1.	In steam power generation,what is IGCC means.

...

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1) How to determine the moment of inertia on rotor of a turbo-generator?

2) What is use of oil vapor extraction system?

3) What you will do if all of the DCS in your power plant hang-up - explain the role of FRS(Feed Regulating Station)?

4) Explain the role of generator circuit breaker is suddenly the RPM of turbine goes beyond the critical RPM?

5) Explain the two laws used in d-aerator for removal of condensate,air and to maintain reference level?

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1.	In steam power generation,what is IGCC means.

A.	Integrated Geothermal Complete Cycle

B.	Integrated Gas Combined Cycle

C.	Integrated Gasification Combined Cycle

D.	International Gasification Combined unit Cycle

2.	An engine or turbine that moves the generator.

A.

Propeller

B.	Prime mover

C.

Condenser

D.

Shafting

3.	This is the reduction gear between the prime mover and generator.

A.

Load gear

B.	Reduction gear

C.	Bevel gear

D.

Clutch

4.	A steam turbine that exhausts directly into a con...

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1. How to detect air leakage in plant air network?

2. Heat-less dryer provides exact dew-point? support your answer.

3. VFD in BFP is a remedy for axillary power consumption ? How

4. What is the working of generator circuit breaker?

5. The relay "k-87" comes under which type of trip category? class A,B or C?

Note:- These question are meant for those who are working in power plant,freshers can try to solve these.

Best wishes from - PPIC Team

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1. Find the proper Cv for a valve that must allow 175 gal of propene per min with a specific gravity of 0.8 at max pressure of 55 Psi?

2. pressure in psi is measured and converted to a voltage by a sensor according to the relationship V=................?

3. How much will an aluminum rod of 10m at 20 deg expand when the temperature is changed from 0 to 100 deg centigrade?

4. what are the safety interlocks for stat-up vent control valve when plant suddenly blac-out?

5. A J-type thermocouple with a ...
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1. HOW MANY MODE ARE IN UPS?

2. why we cant transmit the dc current easily ?

3. What is the Temperature Co-efficient of Resistance of PT- 1000 and PT-2000 ?   

4. What is Burnout feature in a recorder?

5. How to derive IO Count (AI, AO, DI and DO ) from a Field instrument (FI) Bill of Quantities (BOQ) given by client?

6. How many types of open loop control system are there in thermal power plant?

7. what do u mean by 2/3 solenoid valves?

8. what is virtual instrumentation?
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1. What is the full form of KGV /IGV /IL / RPC / PRDS-PCV ?

2. What is the working principle of magnetic type flow meter ?

3. How you will detect the faultiness of a turbine flow metre ?

4. Make a logic for auto purging system of receiver moisture through a 1/2" gi pipe line.
    instrument provided - 1 no of SOV - 2/3 Port , DCS cable , supply of 230v , Power cable - 3cx1.5 sqmm , air of 6kg/cm2
    make the logic in ladder or FBD & send it to pp.ic@rediffmail.com

5. Tell of some safety instrument...
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1.Which thermometers is not suitable for distant reading upto 60 metres?

2. How to adjust the sensitivity of a vibration probe in 3500/45 TSI system?

3. How to measure the eccentricity in axial shaft of rotor?

4. How many types of sensor probes are there for an TSI system ?

5. When a bare thermocouple is covered by a protective sheath, the response becomes.......?

6. Stalagmometer is used for the measurement of .....?

7. The deflection in diaphragm (which is used as pressure sensor in pneumatic an...
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1.Which of the following is an undesirable dynamic characteristic of an instrument ?

A.	Reproducibility
B.	Dead zone
C.	Time lag
D.	Static error

	2.The __________ of a vapor pressure thermometer is a functioning element.
	A. pointer B. bourdon tube C. bulb D. none o...

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