What are the causes of turbine vibration

9 Answers   ABC Inc, RRB, Siemens,

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1: When mesuring the flow of liquid what are the two things to measure? 2: In which industrial process you will use centrifugal separator? 3: If any machinery or transmission needs periodic and regular lubrication what is the best method to give it? 4: Oil melts, grease melts. Is there any other lubrication which is effect at 200 deg c? 5: What is a torque converter? 6: Instead of having individual transmission what is the benefit of unified transmission? 7: What are the different types of mechanism to engage primary moving engine and transmission (in other words how many different types of clutches are there)? 8: In order to ensure constant pressure and constant flow rate of compressed air what should we put between the compressor and end user? 9: What can be the reasons for a metal gasket to leak? 10: The old welding machines used electromagnetic winding to step up the current for welding rods. What is the new principle inside the welding machines?

0 Answers   Petrotech,

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If saturated temp of water is 99.8degc at atmospheric pressure,then how the water of sea is evaporated at normal temp 71

3 Answers   TATA,

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WHAT IS MEAN BY SS-314(STAINLESS STEEL PIPE GARDE)?

1 Answers  

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what is procedure of measuring operating length of mechanical seal .(in case of centrifugal pump)?

0 Answers  

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how the sex feels in the space??what will be the result of thrust force ??

0 Answers   NASA, TATA,

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explain the effects of alloying chromium and nickel in stainless steel.

0 Answers  

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What is freezing point?

2 Answers  

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types of stainless steel.why does this called stainless.what is passivation related to SS? What is sensitisation in stainless? Examples of diffrent type of steel e.g. austenatic,martensite,ferritic etc. 304,303,316. How to get rid of carbide formation in SS and stablization in SS.(347 etc.)Different type of heat treatments. Iron carbon diagram. Nelson chart with respect to corosion. Diffrent type of corosion and causes. Carbon equvalent number. Welding related questions.(requirement of post and pre heating in welding). welding of SS. If you have pre experience in maintenance then Material and welding related questions will be there. Then various types equipment in plant (a) static (b) rotatic in pumps and compressor,turbines funda of balance drum and balance disc, balancing line. Impulse wheel, wheel chamber pressure and its effect on turbone health if this increases. Thermal expansion of turbines and with respect to how foundation bolting are designed. Fixing of lower casing before dismantling. Most important shaft alignment and balancing of rotating equipment,classification of static and rotatic equpment used in process plants. Materials for diffrent services as refinery plants fertilizer plants, cement plants, sulphur plants, crude oil with higher sulphur services, then third important thing is codes, standards and recommended practices of diffrent organisation like ASTM,ASME,API,TEMA,BIS,IS,ISO,NPFA,OISD etc. diffrent type of work permit systems fire and safety point of view.

1 Answers  

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tell me about a type when you had to use your presentation skill to influence some ones opinion

0 Answers  

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HOW IMPURTIES IN A METAL CRYSTAL AFFECT THE PROPERTIES OF METAL PATICULARLY ELECTRICAL ONES? GIVE BASIC REASON?

4 Answers   HAL, Power Grid,

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How are the bearing numbers given?

5 Answers  

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