How do you think they do earthing or grounding in ships and
aeroplanes?

Answer Posted / shailesh

THE BODY OF Ship/Aircraft acts as earth.

Is This Answer Correct ?    21 Yes 11 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

1765


how the aircraft outer body and inner body is separated ?

626


how to calculate the breaking capacity of different breakers.

1697


In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?

1643


how to calculate power consumption in slip ring motor at different step

1710






what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?

1996


what is saturation kit?which use above 15 kw motors panel side.

3572


What is the main cause of magnetism?

1585


If ROC does not lies inside unit circle,then ? a) Fourier transform converges b) Z transform converges c) Hatly transform converges d) Colpit Transform converges.

1843


what is the working principle of a DG Set, Alternator, & exiter

9746


What is resonant frequency?

706


what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW

8036


If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables

900


What is the difference between rulling span and wind span of of an Over Head Transmission Line?

1839


How many gap between finger contact in a.c.b. and v.cb.?

746