Question

The number of cores to be used to form castings is _____________

(a) One

(b) Ten

(c) Depends on the sand

(d) Depends on the design

The question was posed to me in an online quiz.

My question comes from Cores and Core Prints in chapter Foundry Introduction of Foundry and Forging

Answer 1

Right choice is (d) Depends on the design

The best I can explain: The number of cores used in the formation of the casting depends hugely on the design. The range of the cores used cannot be specified. The valves require two or three cores depending on the design where as the GM V-8 engines require 5 dry sand cores.