Answer / udaya17

seemless tubes are made by stainless steel composites

Answer / murali

made by extrusion of steel billets

Answer / ferozh

they are made by piercing the steel tube and rolling simultaneously, in order to get the hollow tube. they are also produced by cold extrusion techniques.

Answer / souren roy

piercing...

Answer / vijay kumar

Seam less tube are made by piercing and also (extrusion-if long pipe and high pressure required)

are induction motor have poles? yes / no , why?

3 Answers  

what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

0 Answers   Bosch,

why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?

1 Answers  

how can i get an electrical c-certificate?

0 Answers   Wartsila,

What will happen if induction motor is supplied with capacitive load?

1 Answers   NTPC,

How Cable Size is determined for a Particular load.

4 Answers  

What is the use of core in the transformer?

19 Answers  

how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

1 Answers   Bhel, Indorama, Power Grid,

what is the difference in between short time and continuous rating?

1 Answers  

why the current leads voltage in the case of a capasitor

9 Answers   Infosys,

Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

0 Answers  

how can i design a APFCR panel? please explain with example..

1 Answers   Milestone, Reliance Jio,