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Which of the following are the requirements of an ideal gating system?
1. The molten metal should enter the mould cavity with as high velocity as possible.
2. It should facilitate complete filling of the mould cavity.
3. It should be able to prevent the absorption of air or gases from the surroundings in the molten metal while flowing through it.
Select the correct answer using the codes given below
  • a)
    1, 2 and 3
  • b)
    1 and 2
  • c)
    2 and 3
  • d)
    1 and 3
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following are the requirements of an ideal gating system...
Statement 1 is wrong because if the velocity is as high as possible the flow will become turbulent which results in sand erosion, respiration effects etc.
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Community Answer
Which of the following are the requirements of an ideal gating system...
The correct answer is option C: 2 and 3. Let's understand why.

1. The molten metal should enter the mould cavity with as high velocity as possible:
- This requirement is not necessary for an ideal gating system. While high velocity can help in filling the mould quickly, it can also lead to turbulence and splashing, which may cause defects in the casting. Therefore, the velocity of the molten metal entering the mould cavity should be controlled and optimized based on the specific casting requirements.

2. It should facilitate complete filling of the mould cavity:
- This is an important requirement of an ideal gating system. The gating system should be designed in such a way that it allows the molten metal to flow smoothly and uniformly throughout the mould cavity, ensuring complete filling. A well-designed gating system will prevent any blockages or restrictions that could hinder the flow of the molten metal.

3. It should be able to prevent the absorption of air or gases from the surroundings in the molten metal while flowing through it:
- This is another crucial requirement. When the molten metal flows through the gating system, it is susceptible to absorbing air or gases from the surroundings. The presence of air or gases in the molten metal can cause defects like porosity or gas inclusions in the casting. The gating system should be designed to minimize or eliminate the contact between the molten metal and the surrounding air or gases, ensuring a clean and defect-free casting.

In summary, an ideal gating system should facilitate complete filling of the mould cavity and prevent the absorption of air or gases from the surroundings in the molten metal. The requirement of high velocity is not necessary and can even lead to defects if not controlled properly. Hence, the correct answer is option C: 2 and 3.
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Which of the following are the requirements of an ideal gating system?1. The molten metal should enter the mould cavity with as high velocity as possible.2. It should facilitate complete filling of the mould cavity.3. It should be able to prevent the absorption of air or gases from the surroundings in the molten metal while flowing through it.Select the correct answer using the codes given belowa) 1, 2 and 3b) 1 and 2c) 2 and 3d) 1 and 3Correct answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which of the following are the requirements of an ideal gating system?1. The molten metal should enter the mould cavity with as high velocity as possible.2. It should facilitate complete filling of the mould cavity.3. It should be able to prevent the absorption of air or gases from the surroundings in the molten metal while flowing through it.Select the correct answer using the codes given belowa) 1, 2 and 3b) 1 and 2c) 2 and 3d) 1 and 3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following are the requirements of an ideal gating system?1. The molten metal should enter the mould cavity with as high velocity as possible.2. It should facilitate complete filling of the mould cavity.3. It should be able to prevent the absorption of air or gases from the surroundings in the molten metal while flowing through it.Select the correct answer using the codes given belowa) 1, 2 and 3b) 1 and 2c) 2 and 3d) 1 and 3Correct answer is option 'C'. Can you explain this answer?.
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