ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Engineering >> Electrical Engineering
 
 


 

 
 Civil Engineering interview questions  Civil Engineering Interview Questions (3078)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3289)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13333)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2363)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (416)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (79)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (163)
 Instrumentation interview questions  Instrumentation Interview Questions (2381)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (106)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (44)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (77)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1196)
Question
What are the various methods for effecive earthing in a 
factory in a rocky terrain, where soil resistivity is 
extraordinarily high? The usual method of 3 m deep earth 
pits is not serving the purpose.
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
here the soil resistivity is high. so mat earthing is provided 
Is This Answer Correct ?    15 Yes 4 No
Joby
 
Answer
# 2
If Earthing Resistance Value is more than minimum specified
value & one pit can not serving the you have to provide
Three to Four Earthing Pit Which are Interconnected
Together Making The Earthing Mat So The Total Effective
Value Will be Less.
 
Is This Answer Correct ?    14 Yes 3 No
Ashish
 
 
 
Answer
# 3
Import good black soil from some where else,mix it with alot
of salt and charcoal dust, dig atleast 2 pits in a space of
10metres apart.
Let each pit have its own earth mat and burry it wit the
mixture mentioned above ie salt, black soil and charcoal
dust and then bond or interconnect the earth mats wit an
earthwire of ATLEAST 35mm2.
Finally pour alot of water in the pits.
 
Is This Answer Correct ?    5 Yes 0 No
Brian
 
Answer
# 4
There are some powders which harden (i.e. erico make some I
think). Generally would drill a fairly deep hole. insert
earthing rod and surround with these earthing enhancers.
Try to avoid gell or powder forms of earth enhancer as they
tend to wash away when it rains
 
Is This Answer Correct ?    7 Yes 4 No
Blake Australia
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
WHY THE TRANSFORMER VALUE MEASURES IN KVA INSTEAD OF KW.   4
X is a uniformly distributed random variable that takes values betweeen 0 and 1.The value of E {X3}(x cube) will be. GATE 1
Why C.T secondary s2 done earthing?   4
what is CRGO Transformers? TATA 4
how can we change the supply frequency? Areva 8
whats happen if we disconnect the NGR of alternator in running condition?. Generally we observed that transformer netrul is directly grounded but alternator connected with NGR, then ground?   1
WHAT IS THE DIFFERENCE BETWEEN NUTREL AND EARTHING Areva 10
what is the meaning and difference between ELECTRICAL DRAWOUT and MANUAL DRAWOUT?   3
what is power factor for any engineering equipment?? what should be its value?   3
what is entropy? NTPC 3
whis is the formula of converting KW into HP ?   13
What will be the resultant out put voltage when two different voltage rating batteries are vconnected in parallel? pls. answer with example if available.   1
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com