Why Slag comes on top of weld bead & if ur answer is related to density then think of overhead welding if slag is ligter than weld metal then in overhead welding firstly a laye of slag & then a layer of weld metal must be deposited.

3 Answers   SGS,

---

In HVAC R22 gas are using for cooling but why oil are using & which type of it is???????/

2 Answers  

---

What is enthalpy?

5 Answers  

---

c,c++,java,.net,php

0 Answers  

---

how many nozzles in gas inlet in siemens v 94.3a

1 Answers  

---

---

i want to jspl Q&A,pls send this email id:var05mech@yahoo.co.in

0 Answers   Jindal,

---

• Tell me about a time when you helped resolve a dispute between others

1 Answers   Petro Star Mount,

---

Name the indicator diagram.

0 Answers  

---

Who invented the four-stroke engine?

0 Answers  

---

what is differance between 6-sigma and 3-sigma.

5 Answers  

---

What causes cylinder liner-wear down?

0 Answers   RRB,

---

Why is a condensor used in a rankine cycle?

8 Answers   BARC, Bhavini,

---