Colour code for part to be machined for wooden patterns is repres

| Colour code for part to be machined for wooden patterns is represented by following colour :

A. Red or orange

B. Yellow

C. Black on core prints

D. Green

Please scroll down to see the correct answer and solution guide.

Explanation:
Pattern:

Pattern is the replica of final casting to be produced with some modification.
Modification are done in the form of allowances.

Pattern Colour Code:

The pattern are normally painted with contrasting colors such that the mould maker would be able to understand the functions clearly.

The colour code used is as follows:

Colour	Meaning
Yellow	Surface to be machined.
Red/Orange	Surface not to be finished and left as cast.
Black	Core-prints on unmachined openings.
Yellow strips on black	Core print for machined openings.
Green	Loose pieces and loose core-prints.
Black strips diagonal	Strengthen the weak pattern or shorten a casting.