Answer / pvl

This depends on the design of the turbine. I worked with turbine with 4 critical speed bands. It is the natural harmonic frequency where there is maximum vibrations in the turbine. These speed bands can be more than one. Length, weight and steam entry type are the factors which decide the critical speed bands in a turbine.

My friend has faced this question! I don't know clearly. So please anyone give me the correct and short answer to this question? What is variable frequency drive? Types, what is star to delta? Why this arrangement necessary?

5 Answers   Asian Paints, TCS,

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WHAT IS AN INTERLOCK SYSTEM ?? HOW THEY WORKs ?? WHERE IT IS USED ??? MAINLY ??

2 Answers   TATA, Tata Steel Limited,

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What is difference between differential pressure & delta pressure?

0 Answers  

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How will u convert the mmh2o in mass or Volumetic flow rate in DP Flow Transmitter. Give me the Brief explain using the formula

1 Answers   Walchandnagar Industries,

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pls tell me whethere flame proof HMI's are available or every HMI is manufactured by considering flame proof standard.

3 Answers  

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Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?

0 Answers  

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What is TMR

3 Answers  

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WHAT IS SMART SENSOR AND DIFFERENT B/W SMART SENSOR AND SENSOR??? PLS GIVE ME ANSWER AS SOON AS POSSIBLE.....

1 Answers  

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please help me to get the below mentioned quires,which i have to submit for my client.[INSPECTION TEST PLAN] 1]I.T.P for Calibration of all instrument. 2]I.T.P for SS tubing. 3]I.T.P for Fire & Gas devices. 4]I.T.P for CCTV & telecommunication. 5] I.T.P for loop checking.

1 Answers  

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A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe

0 Answers  

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HOW WE ARE DECIDING WHILE PROGRAMMING IN PID CONTROLLER THAT WE ARE USING HEATING OR COOLING???????

1 Answers   Eskom,

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is motorized valve closed when power shutoff?

0 Answers   Unilever,

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