Solved Gate Questions on Engineering Materials Question 1. The ductility of a material with work hardening (A) Increases (B) Decreases (C) Remains unaffected (D) Unpredictable GATE-ME-2002 Hint Hint 1. (Ans B) Question 2. Hardness of steel greatly improves with (A) Annealing (B) Cyaniding (C) Normalizing (D) … Continued
Solved GATE Questions on Joining Process Question 1. Spot welding of two 1 mm thick sheets of steel (density=8000 kg/) is carried out successfully by passing a certain amount of current for 0.1 second through the electrodes. The resultant weld nugget formed … Continued
Solved GATE Questions on Joining Process Question 1. Resistance spot welding is performed on two plates of 1.5 mm thickness with 6 mm diameter electrode, using 15000 A current for a time duration of 0.25 seconds. Assuming the interface resistance to be 0.0001Ω, … Continued
Solved GATE Questions on Forming Process Question 1. The force requirement in a blanking operation of low carbon steel sheet is 5.0 kN. The thickness of the sheet is ‘t’ and diameter of the blanked part is ‘d’. For the same work material, if the … Continued