Class 2 (2nd Engineer) MEKG 📅 Jul 2023

Exam Question

(a) State the laboratory tests that may be carried out on specimens of steel for ships' plate giving reasons for the tests.

(b) The basic compositions of two ships' plates are given in Table below.

One of the steel mentioned in table is an example of modern practice whilst the other steel is the specification of an old tanker that split into two due to brittle fracture. Compare these two specifications critically and explain which of these two steels would be most resistant to brittle fracture.

Reference Answer

### (a) Laboratory Tests on Steel Specimens for Ships' Plates
Steel plates intended for ship construction are subjected to a rigorous regime of laboratory tests to ensure they possess the required mechanical properties for strength, ductility, and resistance to fracture. These tests are mandated by Classification Societies.
1. **Tensile Test:**
* **Purpose:** To determine the material's strength and ductility under uniaxial tensile loading.

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play