Answer / david

Catalytic cracking is a thermal distilation conversion of long chain hydrocarbon into short chain hydrocarbon.

"In electricity, what is commutator? Carbon brush? "

1 Answers   RRB,

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Plz tell me how to prepare for RRB exams for section engg for mechanical and suggest me some books for that.

2 Answers   RRB,

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What are the causes of damage of diesel engine exhaust Valve?

1 Answers   RRB,

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can aluminium be welded?if so say the type used for it?

4 Answers  

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why not soot blowing performed of air preheater, while soot blower is in retract position?

0 Answers  

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how does an EDM works?

2 Answers  

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• How long would you expect to work for us if hired

1 Answers   Petro Star Mount,

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WHY WE USE DC IN MIG WELDING

3 Answers   FMI, TATA,

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In Rankine cycle there is a concept of Tm(mean temp of heat addition)For calculating the efficiency of the cycle we generally use n=1-T2/T1 again Tm taking into consideration we get n=1-T2/Tm as T1>Tm so he efficiency will be different for same cycle. Can anybody explain how is it possible? advance appriciation for your effort

6 Answers   Sail,

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Define thermal conductivity.

0 Answers  

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How to calibrate Vacuum Gauges if you don't have any standard gauge available with you? please suggest procedures for calibration of Vacuum gauge like pirani gauge ,cold cathod gauge,thermocouple gauge without any standard gauge.

0 Answers  

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dear friends pls explain me what is meant by positive seal in solenoid operated valve

0 Answers   Essar,

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