Question:
Draft on pattern for casting is
Draft on pattern for casting is
Show Hint
Draft = Taper. Think of a plastic cup; the slanted sides make it easy to pull out of a stack.
Updated On: Jul 4, 2026
- For machining allowance
- For shrinkage allowance
- Tapered to facilitate its easy removal from mould
- For Machining allowance
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Concept Pattern allowances are modifications made to a pattern to ensure the final casting meets the desired specifications.
Step 2: Meaning Draft is a specific taper applied to the vertical sides of a pattern.
Step 3: Analysis Without a taper, the friction between the pattern and the sand mould would damage the mould walls during removal.
Step 4: Conclusion Draft is provided specifically to allow the pattern to be withdrawn from the sand without tearing the mould. Final Answer: (C)
Step 2: Meaning Draft is a specific taper applied to the vertical sides of a pattern.
Step 3: Analysis Without a taper, the friction between the pattern and the sand mould would damage the mould walls during removal.
Step 4: Conclusion Draft is provided specifically to allow the pattern to be withdrawn from the sand without tearing the mould. Final Answer: (C)
Was this answer helpful?
0
0
Top AP ECET Metallurgical Eng Metallurgical Engineering Questions
- The crushing efficiency of a crusher is the ratio of
- Grindability of a material does not depend upon its
- Copper deposits are found in India at the following location
- Electrochemical corrosion can occur only if _____________ is present in contact with the metal.
- Hoop's process is predominantly used for the electrolytic refining of
View More Questions
Top AP ECET Metallurgical Eng Casting and Foundry Questions
- The impurities in centrifugal casting are
- Wood flour is added to the moulding sand to improve
- An expandable pattern is used in
- The riser is designed such that the melt in the riser solidifies
- In a casting, shrinkage occurs
View More Questions
Top AP ECET Metallurgical Eng Questions
- Order of the matrix $\begin{bmatrix} 1 & 6 \\ 2 & 0 \\ 7 & -1 \end{bmatrix}$ is
- If two rows (or columns) of a determinant of order 3 are identical then the value of determinant is
- Co-factor of -4 in $\begin{vmatrix} 1 & 2 & 3 \\ -4 & 3 & 6 \\ 2 & -7 & 9 \end{vmatrix}$ is
- The Matrix $\begin{bmatrix} a & h & g \\ h & b & f \\ g & f & c \end{bmatrix}$ is
- If $A = \begin{bmatrix} 0 & 0 & 1 \\ 0 & 1 & 0 \\ 1 & 0 & 0 \end{bmatrix}$ then $(A^{-1}) =$
View More Questions