What is the difference between upstream and downstream in a refinery?

0 Answers  

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How to analyse the best accuracy to micrometer than vernier?

4 Answers   IOCL,

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Define thermostate and thermocouple.

3 Answers  

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Refrigeration cycle works on?

6 Answers   Bhel,

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What is the used of economizer in boiler?

1 Answers   ABC Inc, RRB, Siemens,

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What is the difference between Is 2062 material Grade A & B. Which grade is better ?

1 Answers   Thermax,

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How to find the amount of natural gas required to produce 1kwhr of energy?

0 Answers   Yamaha,

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what are the different theories of failure under static load, explain briefly?

0 Answers   Bechtel,

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Can someone tell me the related topics or helping books for the hpcl interview questions (for engineer graduates..)

1 Answers   HPCL, Machine India,

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What is the formula to calculate the rating of a air compressor.

2 Answers  

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What are the symptoms of broke piston ring?

0 Answers   RRB,

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Work done in compressing 1kg of gas adiabatically from p1,V1,T1 to p2, V2, T2 is equal to

3 Answers   Bhel, Swaraj,

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