GMAW (Gas Metal Arc Welding ) Multiple Choice Question & Answers

  
1.     Metal Inert Gas (MIG) and Metal Active Gas (MAG) welding are welding variants of

(a)  GTAW Gas Tungsten Arc Welding)
(b)  SMAW (Shielded Metal Arc Welding)
(c)  GMAW (Gas Metal Arc Welding)
(d)  SAW (Submerged Arc Welding)

 
2.    Which of the following gases can be used as shielding gas for GMAW

(a)  CO₂
(b)  Ar+O₂
(c)  Ar+CO₂
(d)  Ar
(e)  All of the above

 
3.    In  GMAW process _______ shielding gas produces more spatter

(a)  CO₂
(b)  Argon
(c)  Helium
(d)  Non of above

 
4.    Which type metal transfer occur in GMAW process

(a)  Spray
(b)  Short circuiting
(c)  Globular
(d)  Pulsed arc
(e)  All of the above

 
5.    Which type weld metal transfer requiring lowest current in GMAW process

(a)  Spray
(b)  Short circuiting
(c)  Globular
(d)  Pulsed arc

 
6.    Thin sections are welding in GMAW process using

(a)  Spray Transfer
(b)  Short circuiting Transfer
(c)  Globular Transfer
(d)  Pulsed arc Transfer

 
7.    Which of the following welding process have self regulation welding arc

(a)  GTAW
(b)  SMAW
(c)  GMAW
(d)  Plasma Arc welding

 
8.    The only difference between MIG and MAG welding variants  is

(a)  Welding position
(b)  Metal transfer
(c)  Type of shielding gas used
(d)  Type of electrode used

 
9.    Which of the following types of metal transfer in GMAW provides the lowest amount of heat to the work piece and therefore is prone to the incomplete fusion

(a)  Spray
(b)  Short circuiting
(c)  Globular
(d)  Pulsed arc