Conventional system
1. How turbine oil purification is achieved?
Oil purification is achieved by centrifugal operation.
2. Why morpholine is used?
Morpholine is used for pH control.
3. By which material condenser tubes are made?
Condenser tubes are made up of aluminium brass.
4. How boiler level is controlled?
Feed water control valves controls boiler level.
5. Where magnetic filter is used?
Magnetic filter is used in stator water lines to remove magnetic particles from the
DM water.
6. What is the purpose of accelerator governer?
The purpose of accelerator governer is to cut of steam momentarily when large
electrical loads are taken to prevent turbine speeding up.
7. What is the use of jacking oil pump?
Jacking oil pump is used to initial lifting of turbine rotor by hydrostatic lubrication.
8. What is the use of supplementary oil tank?
Supplementary oil tank is used to collect the oil drains from the CIES valves.
9. How dearator pressure is maintained?
Dearator pressure is normally maintained by extraction steam.
10. How dearator pressure is maintained after turbine trip?
Pegging steam is used to maintain dearator pressure after turbine trip.
11. Where trust bearing is provided?
Trust bearing is provided between HP turbine and LP turbine rotor.
12. How dissolved oxygen control is achieved in feed water system?
Hydrazine is added to feed water system to control dissolved oxygen.
13. How seal oil pressure is maintained?
Differential pressure regulator maintains the seal oil pressure at 0.7 kg / cm2 higher
than H2 pressure.
14. What is used to purge hydrogen from the generator casing?
During generator purging CO2 is used to purge out H2 from the casing.
15. Why class B trip is provided?
Class B trip is provided to prevent damage and over speeding of the turbine.
16. How lub oil supply is maintained?
Lubrication oil is supply is maintained by outlet oil from turbine oil pumps during
normal operation and jacking oil pump during startup.
17. What is the function of speeder gear?
Speed raising beyond governor takeover speed upto full speed is achieved by raising
and lowering the speeder gear.
18. How gland-sealing steam is supplied?
Gland sealing speed is supplied from main steam line.
19. Why exhaust sprays are provided?
Over heating of last stage LP blades is avoided by exhaust sprays by CEP.
20. What is the use of vacuum breaker?
In case of loss of seal oil to generator seals vacuum breaker is used to bring TG to
rest very quickly.
21. How relay oil is supplied?
Relay oil is supplied from the main oil pump for the operation of governing system.
https://www.youtube.com/channel/UC4_D50vMu1wbQrPaLFYo6Eg https://www.youtube.com/channel/UC4_D50vMu1wbQrPaLFYo6Eg RRB JE, SSC AE/JE UPSSSC JE, SSC JE, CIVIL ENGINEERING MCQs, ELECTICAL ENGINEERING MCQs, preavious year quesion papers, dmrc, lmrc, drdo,rrb ntpc, ntpc, pgcil, dsssb, states board, GATE IES EE, ESE, ECE, ME, CE, IT & CS EXAM MATERIALS & OLD PAPERS Electrical Engineering https://t.me/pravendrarajpoot Daily news & current affairs in hindi & english fully updated Daily current affairs https://t.me/newsdailypkr Engineering Discussion group for your upcoming exams, you can ask your any query regarding your problem,๐๐๐ https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA PKR ELECTRICAL ENGINEERING I am sure this is the best place for you guys subscribe and get success IF YOU WANT TO JOIN ME ON TELEGRAM FOR PDF @newsdailypkr AE/JE EE, ESE, ECE, ME, CE, IT & CS EXAM MATERIALS & OLD PAPERS Electrical Engineering https://t.me/pravendrarajpoot facebook page:- Pravendra Kumar Rajpoot https://t.me/newsdailypkr https://chat.whatsapp.com/5AS7dNFTP4H4vVsiWsqHrT https://t.me/srk50 https://t.me/pravendrarajpoot https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA https://t.me/pravendrarajpoot Daily news & current affairs in hindi & english fully updated Daily current affairs https://t.me/newsdailypkr Engineering Discussion group for your upcoming exams, you can ask your any query regarding your problem,๐๐๐ https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA PKR ELECTRICAL ENGINEERING I am sure this is the best place for you guys subscribe and get success IF YOU WANT TO JOIN ME ON TELEGRAM FOR PDF @newsdailypkr AE/JE EE, ESE, ECE, ME, CE, IT & CS EXAM MATERIALS & OLD PAPERS Electrical Engineering https://t.me/pravendrarajpoot facebook page:- Pravendra Kumar Rajpoot https://t.me/newsdailypkr https://chat.whatsapp.com/5AS7dNFTP4H4vVsiWsqHrT https://t.me/srk50 https://t.me/pravendrarajpoot https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA
1. How turbine oil purification is achieved?
Oil purification is achieved by centrifugal operation.
2. Why morpholine is used?
Morpholine is used for pH control.
3. By which material condenser tubes are made?
Condenser tubes are made up of aluminium brass.
4. How boiler level is controlled?
Feed water control valves controls boiler level.
5. Where magnetic filter is used?
Magnetic filter is used in stator water lines to remove magnetic particles from the
DM water.
6. What is the purpose of accelerator governer?
The purpose of accelerator governer is to cut of steam momentarily when large
electrical loads are taken to prevent turbine speeding up.
7. What is the use of jacking oil pump?
Jacking oil pump is used to initial lifting of turbine rotor by hydrostatic lubrication.
8. What is the use of supplementary oil tank?
Supplementary oil tank is used to collect the oil drains from the CIES valves.
9. How dearator pressure is maintained?
Dearator pressure is normally maintained by extraction steam.
10. How dearator pressure is maintained after turbine trip?
Pegging steam is used to maintain dearator pressure after turbine trip.
11. Where trust bearing is provided?
Trust bearing is provided between HP turbine and LP turbine rotor.
12. How dissolved oxygen control is achieved in feed water system?
Hydrazine is added to feed water system to control dissolved oxygen.
13. How seal oil pressure is maintained?
Differential pressure regulator maintains the seal oil pressure at 0.7 kg / cm2 higher
than H2 pressure.
14. What is used to purge hydrogen from the generator casing?
During generator purging CO2 is used to purge out H2 from the casing.
15. Why class B trip is provided?
Class B trip is provided to prevent damage and over speeding of the turbine.
16. How lub oil supply is maintained?
Lubrication oil is supply is maintained by outlet oil from turbine oil pumps during
normal operation and jacking oil pump during startup.
17. What is the function of speeder gear?
Speed raising beyond governor takeover speed upto full speed is achieved by raising
and lowering the speeder gear.
18. How gland-sealing steam is supplied?
Gland sealing speed is supplied from main steam line.
19. Why exhaust sprays are provided?
Over heating of last stage LP blades is avoided by exhaust sprays by CEP.
20. What is the use of vacuum breaker?
In case of loss of seal oil to generator seals vacuum breaker is used to bring TG to
rest very quickly.
21. How relay oil is supplied?
Relay oil is supplied from the main oil pump for the operation of governing system.
https://www.youtube.com/channel/UC4_D50vMu1wbQrPaLFYo6Eg https://www.youtube.com/channel/UC4_D50vMu1wbQrPaLFYo6Eg RRB JE, SSC AE/JE UPSSSC JE, SSC JE, CIVIL ENGINEERING MCQs, ELECTICAL ENGINEERING MCQs, preavious year quesion papers, dmrc, lmrc, drdo,rrb ntpc, ntpc, pgcil, dsssb, states board, GATE IES EE, ESE, ECE, ME, CE, IT & CS EXAM MATERIALS & OLD PAPERS Electrical Engineering https://t.me/pravendrarajpoot Daily news & current affairs in hindi & english fully updated Daily current affairs https://t.me/newsdailypkr Engineering Discussion group for your upcoming exams, you can ask your any query regarding your problem,๐๐๐ https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA PKR ELECTRICAL ENGINEERING I am sure this is the best place for you guys subscribe and get success IF YOU WANT TO JOIN ME ON TELEGRAM FOR PDF @newsdailypkr AE/JE EE, ESE, ECE, ME, CE, IT & CS EXAM MATERIALS & OLD PAPERS Electrical Engineering https://t.me/pravendrarajpoot facebook page:- Pravendra Kumar Rajpoot https://t.me/newsdailypkr https://chat.whatsapp.com/5AS7dNFTP4H4vVsiWsqHrT https://t.me/srk50 https://t.me/pravendrarajpoot https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA https://t.me/pravendrarajpoot Daily news & current affairs in hindi & english fully updated Daily current affairs https://t.me/newsdailypkr Engineering Discussion group for your upcoming exams, you can ask your any query regarding your problem,๐๐๐ https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA PKR ELECTRICAL ENGINEERING I am sure this is the best place for you guys subscribe and get success IF YOU WANT TO JOIN ME ON TELEGRAM FOR PDF @newsdailypkr AE/JE EE, ESE, ECE, ME, CE, IT & CS EXAM MATERIALS & OLD PAPERS Electrical Engineering https://t.me/pravendrarajpoot facebook page:- Pravendra Kumar Rajpoot https://t.me/newsdailypkr https://chat.whatsapp.com/5AS7dNFTP4H4vVsiWsqHrT https://t.me/srk50 https://t.me/pravendrarajpoot https://t.me/joinchat/JObxeA7n6S4qvnegrGhTgA
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