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)

what is scan time of PLC & in which factor scan time is decide

3 Answers   EEEC,

what is the principle of generator , induction motor,d.c motor

1 Answers  

Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632

0 Answers  

State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp

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Why battery chargers are use in substation?

5 Answers  

why CT ratio stand for 50/5, 100/5, 25/5.

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how many units consumed by a 33/440 2000 kava transformer in a day

3 Answers   Infosys, MRF,

What is the resistance of the field winding of a d.c. Shunt generator kept low?

0 Answers  

if z transform lies in ROC then. a)system is stable b)inverse of system is stable c)both system and its inverse are stable.

1 Answers   CCP,

what is meant by phase transformation ratio in induction motors?

2 Answers  

Is it possible to convert Dependent sources to its equivelent current or voltage Sources ?????

1 Answers   Zen Technologies,

what is the clearances between phease to phease & phease to earth in 400 kv transmission line?

1 Answers   Lanco,