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Question Asked @ Answers Views     Select
what is meant by unity power factor?unity means one why dont call 2,3,4......?    6  1533
why only 11kv level is used for transmission purpose? why not 230v?    7  2395
How to increase home power factor? Can we connect capacitor directly? How to select capacity of capacitor?    5  1684
What are the types of relay ?    3  1210
rcc concrete grade uses descon   3  3150
What is potientiometer.What is the use of it.    1  858
why we are using MARSHALLING PANEL? what is the role?    4  13142
why field winding is placed on rotor winding not on stator winding in case of synchronous machine? hal   10  3808
Q1) I am having an interview in a construction company for a large sewage project . Since I have not done any such project , there are some queries from my end. Pls. help me to solve them. I will be thankful to you :- a) Normally for large project 400-600 houses & around 1600 peoples , how much dia pipe is used and which type of pipe is used? b) For trenching , I have heard that IS 1200 implies, what are the rules of calculating earthwork in case of depth of 2m or above ? c) To prevent soil to fall when depth of trench is more , what steps are taken and how there qty. is calculated . Like I have heard about timbering . what is this ? d) What are the rules for disposing off the excavated soil ? e) How the pipes that are used are being jointed? f) In case of cleaning on choks , is there any intermediate things provided? g) For foul gases any outlets are provided thru out length of pipeline? h) What is the flow digram like from houses thru small pipe to main pipeline than where main pipeline disposes wastage ? i) Any other thing that has to be kept in mind while calculating earth work for excavation like steps are made and other things? How earthwork is calculated in case of steps ? Pls. explain with a sketch. Regards,    1  1241
Brief working principle of fluorcent tubelight,function of starter & choke. havells   3  10217
What is Latch on? nsn   3  2980
What is The Difference B/w Routine Backup & Quaterly Backup of switch hcl   1  531
what is first pole to clear factor    1  3306
1.antenna is passive or active?? add why? 2.diff b/w tch drop & tch block?? 3 diff. b/w sdcch drop & sdcch block?? ericsson   0  234
How will you explain transformer action in case of 3-phase induction motor?    4  901
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Un-Answered Questions
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Q. what @the interview exact Q&A is it correct 126
axial displacements of the turbine. What could be the causes?♪ ♪ 203
Dry type transformers 115
all interview questions with answers of ntpc (2000-2009 176
Explain how thw analog to digital converter works with the circuit diagram 321
Is it the relation between friction and power losses ? is it relation among stress, friction and power loses in cicular ring ? 194
Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance. 355
if voltage bt phase & nutral is 38v in a panel board . whats the root cause. 162
how to count 4 column with two "and" condition in oracle? e.g task_type and cust_type and service_type are 3 column and we hv to count where task_type="new"and cust_type="jdp" and resulting column name will be new cust with jdp..and also we hv to count where task_type="new"and service_type="fs" resulting column name will be new cust with fs.. 118
how we arrange the hv side with delta connection in case 33/11kv of transformer. 244
sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers 527
at what pressure ply-wood is obtained by gluing wooden sheets 151
what is the difference between composite key and primary key in sap abap 43
ELCBs are installed for protecting humans from AC leakage current.Is there a device which protects humans from DC Leakage current??e.g.leakage from batteries...If not,then why so??? 156
What's the difference between looping 0s and 1s in K map? 874
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