Diploma Strength of Materials N Scheme important questions

Subject : Strength of Materials

UNIT – 1, Engineering Materials Scheme : N

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NOTE :

1. The highlighted Questions are asked more than two times in the Board Exam – M Scheme, We Matched the syllabus of M Scheme & N Scheme and Removed M Scheme Questions

2. These Questions are collected from Board Examination Question Papers.

3. The student may practice these questions

Unit 1 Syllabus ,ENGINEERING MATERIALS
Chapter: 1.1: Engineering materials:

Classification – definition of Mechanical properties – ferrous metals – cast iron – uses – advantages – types of cast iron – properties and applications – effect of impurities on cast iron. steel – classification – alloying elements – purpose of alloying – effect of alloying elements on steel – uses of steels – properties of mild steel – defects in steel – applications – properties of hard steel – market forms of steels – nonferrous metals – properties and uses.
Chapter: 1.2: Mechanical testing of materials:
Compression test – bend test – hardness test – Brinell hardness test, Vickers hardness test, Rockwell hardness test – impact test – fatigue test – creep test. Tensile test of mild steel in UTM – stress strain diagram -limit of proportionality – elastic limit – yield stress – breaking stress – ultimate stress – percentage of an elongation and percentage reduction in area – problems.
Chapter: 1.3: Friction
Introduction – definition – force of friction – limiting friction – static friction – dynamic friction – angle of friction – coefficient of friction – laws of static and dynamic friction. Description only.