Class 2 (2nd Engineer) MEKG 📅 Nov 2022

Exam Question

Briefly describe the tests made on a piece of metal to determine its suitability for use in engineering. Explain clearly what is meant by any four of the following metallurgical terms:

(a) Work hardening

(b) Case hardening

(d) Normalising

(e) Nitriding

Reference Answer

### **Tests to Determine Material Suitability for Engineering Use**
To ascertain a metal's suitability for a specific engineering application, a series of standardised tests are conducted to quantify its mechanical properties. These tests ensure the material can withstand the operational stresses, temperatures, and environmental conditions it will encounter during its service life.
1. **Tensile Test:**
* **Objective:** To determine the material's strength and ductility under axial tensile loading.

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