What is the disadvantage of hand molding?(a) Damage to the projections(b) Costly method(c) Non-uniform strength(d) Poor surface finish of the moldI got this question during an online interview.The origin of the question is Methods of Ramming Mold Boxes in division Mold and Mold Making of Casting-Forming-Welding I

What is the disadvantage of hand molding?(a) Damage to the projections

1.	What is the disadvantage of hand molding?(a) Damage to the projections(b) Costly method(c) Non-uniform strength(d) Poor surface finish of the moldI got this question during an online interview.The origin of the question is Methods of Ramming Mold Boxes in division Mold and Mold Making of Casting-Forming-Welding I
Answer» Correct choice is (c) Non-uniform STRENGTH The explanation: In hand MOLDING, the ramming force required for compressing the molding SAND is applied by HUMAN hand. A human knows about projection in the pattern ACCORDINGLY he applies force thus no damage to projections. Surface finish obtained is also good.But, the force applied is non-uniform which results in non-uniform strength.

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