Explain the difference between ferrite, austenite and graphite ?

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what the reduced pressure by elbow 90 and 45 in pipeline flow?

1 Answers  

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Explain the difference between projectile motion and rocket motion.

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Explain how do motion detectors work?

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in aviation, How does control valves work?

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what is differential expansion?

3 Answers  

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Kind of refrigerant use in a refrigerating system

2 Answers   RRB,

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A very strange fault i cam across today,that i never experienced not studied before, i need an answer for this. Phase to phase or line to line , L1,L2 & L3, voltages are 490VAC, but if i use line to ground , its again 490 VAC. . . whats the fault and theory behind of it?

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Identify the parts of propeller

1 Answers   RRB,

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type ofgeneral bearing

3 Answers   RRB,

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please sir i need a jindal model question paper and syllabus..i am having exam in november pls sir...i have to start preparing...send it to arunvel7@gmail.com

1 Answers  

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What does a rolling offset look like?

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