Why the work per kg of air flow in axial flow compressor is less compared to centrifugal compressor for same pressure ratio ?

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The graphite in grey irons exists in the form of flakes which act as stress-raisers under tensile loading and consequently grey irons have relatively low tensile strength and ductility. Still grey iron is extensively used in engineering. Why ?

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If any machinery or transmission needs periodic ana regular lubrication . what is the best method to give it?

0 Answers   KJH,

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What is periscope?

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What are the some examples of a periscope?

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Dear Sir, I am Shariq Sami. I joined BHEL as a Supervisor Trainee in May 2009 on diploma basis, right now i am an assistant Engineer and posted at Noida. I have completed my bachelor of engineering from Jamia Millia Islami, New Delhi.I am Planning to appear for "BHEL ET" exam this year. I want to know,is there any previous year question papers will be available like we have for GATE exams or you feel it is no need? Can you please guide me? Kind Ragards M.S Sami, Contact No. 9891090742, 9250250988, 0120-2545796

0 Answers   Bhel,

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What is control volume system?

0 Answers   John Deere,

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What is a combination thrust and radial bearing?

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Which country has the worlds most powerful tank?

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how material removal occurs only in workpiece not in tool during an EDM process?

0 Answers   Anna University,

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How do you control cylinder liner wear?

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What is the use of multi tester?

0 Answers   RRB,

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