What is the name of welding process if the arc produced by a consumable metal electrode is protected by inert gas?
A. MAG welding
B. MIG welding
C. TIG welding
D. Plasma welding
How is thermit mixture ignited?
A. Petrol
B. Diesel
C. Fire stick
D. By match or magnesium ribbon
Which welding method starting of welding done by using steel wool or iron powder?
A. SAW
B. GTAW
C. GMAW
D. MMAW
What are the gases mixed for shielding in FCAW?
A. Argon and O₂
B. Argon and CO₂
C. Helium and CO₂
D. Argon and helium
How many types of flux cored wires are used in FCAW?
A. 2 types
B. 3 types
C. 4 types
D. 5 types
Which type of electrode provides protective slag in flux cored arc welding?
A. Tubular cored flux electrode
B. External cored electrode
C. Additional cored flux electrode
D. Shielding gas type only
What device is used to protect face from UV and Infra-red radiation during welding?
A. Blue goggles
B. Plain goggles
C. White goggles
D. Helmet with filtered colour glass
What protective equipment (PPE) is used to protect hand from burning injury?
A. Apron
B. Goggles
C. Protective shield
D. Leather gloves
Which gas is generated during GMAW on using CO₂ as shielding gas?
A. Helium
B. Carbon monoxide
C. Argon
D. Oxygen
What type of lens shade is to be fixed in helmet while doing MIG welding?
A. A # 09
B. A # 10
C. A # 11
D. A # 12
What is the lens shade fitted in a helmet as per the recommendation of welding code for setting of 150 Amps for MMAW?
A. A # 10
B. A # 11
C. A # 12
D. A # 13
Which type of apron is suitable to protect from heat and radiation during welding?
A. Silk apron
B. Cotton apron
C. Leather apron
D. Asbestos apron
Which angle of pre setting is to compensate distortion on horizontal single V butt joint metal thickness 10 mm and root gap 2mm ?
A. 173°
B. 178°
C. 180°
D. 183°
How many types of basic welding positions in GMA welding?
A. 2 types
B. 3 types
C. 4 types
D. 5 types
Which is the weld position of GMA welding if the weld is deposited underside of the job?
A. Vertical position
B. Horizontal position
C. Over head position
D. Down head position
What type of joints are made by the groove welds in GMA welding?
A. Butt weld
B. T weld
C. Corner weld
D. Lap weld
Which shielding gas is used in MIG welding?
A. Argon
B. Argon + 20% CO2
C. Argon + 1% oxygen
D. Argon + 10% hydrogen
Which type of weld is developed electro slag welding?
A. Gas welding
B. Resistance welding
C. Submerged arc welding
D. Shielded metal arc welding
How many types of metal transfer in GMAW/CO2 welding process?
A. One
B. Two
C. Three
D. Four
What is the ability of metal to cut another metal?
A. Creep
B. Fatigue
C. Hardness
D. Strength