A. Gas
B. Arc
C. Thermit
D. Resistance
Related Mcqs:
- Projection welding & stud welding is categorised as the _______________ welding?
A. Pressure
B. Thermit
C. Resistance
D. Arc - In TIG welding, thoriated tungsten electrodes are used, because it ____________________?
A. Has higher current carrying capacity
B. Has better electron emissivity
C. Is stronger than ordinary tungsten
D. Is easy to prepare - Coating provided on the electrodes used in the arc welding is not expected to_________________?
A. Add alloying elements
B. Prevent electrode from contamination
C. Stabilise the arc
D. Provide protective atmosphere to weld - Thermit welding is categorised as the ______________________ welding ?
A. Forge
B. Fusion
C. Resistance
D. Arc - Current employed in resistance welding ranges from ____________________ kVA/cm2?
A. 1.2 to 2.5
B. 4.5 to 6.2
C. 7.5 to 8.5
D. 10.5 to 15.5 - Oxyacetylene reducing flame is used while carrying out welding on___________________?
A. Alloy steel
B. Grey cast iron
C. Mild steel
D. High carbon steel - Chromium molybdenum steel cannot be welded using ______________ welding ?
A. Thermit
B. Electrical resistance
C. Oxy-acetylene
D. Any of these - Elimination of brittleness resulting from welding of saw blades is done by __________________ of the welded portion ?
A. Annealing
B. Toughening
C. Work hardening
D. Tempering - Oxyacetylene reducing flame is used while carrying out welding on__________________?
A. Alloy steel
B. Grey cast iron
C. Mild steel
D. High carbon steel - In electrical resistance welding, distortion results from the use of improper________________?
A. Clamping methods
B. Electrodes
C. Current
D. Filler material
