WELDER IMPORTANT NIMI BASED MCQ

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