Question

Which of the following is not a limitation of wooden patterns?

(a) Get abraded easily

(b) Absorb moisture

(c) Difficult machining

(d) Poor wear resistance

I had been asked this question during an interview for a job.

Query is from Pattern Materials topic in chapter Pattern and Pattern Making of Casting-Forming-Welding I

Answer 1

The correct answer is:

(c) Difficult machining

Wooden patterns are generally easier to machine compared to other materials like metals. The main limitations of wooden patterns are that they can get abraded easily, absorb moisture, and have poor wear resistance, which can affect the quality and longevity of the pattern in casting processes.