Government of Andhra Pradesh Lecturer Interview Questions and Answers for Freshers

I teach design of machine elements subject to diploma in mechanical engineering students by using a combination of theoretical concepts and practical applications.

• I start by introducing the basic concepts of machine design and the different types of machine elements.

• I use real-life examples to help students understand the practical applications of the subject.

• I encourage students to work on design projects to apply the...read more

Design of machine elements involves fundamental concepts such as stress, strain, fatigue, and material properties.

• Machine elements are designed to withstand various types of loads and stresses.

• Stress and strain analysis is used to determine the strength and durability of machine elements.

• Fatigue analysis is used to predict the life of machine elements under cyclic loading.

• Material properties such as strength, stiffness...read more

Basics refer to fundamental principles or essential elements of a subject or skill.

• Basics are the foundation upon which advanced knowledge is built

• They are the fundamental principles or essential elements of a subject or skill

• Examples of basics include basic arithmetic, grammar, and vocabulary

• Mastering the basics is crucial for success in any field

Factor of safety is the ratio of the maximum stress a material can withstand to the actual stress it is subjected to.

• It is a measure of how much stronger a material is than the maximum stress it will encounter.

• It is calculated by dividing the maximum stress a material can withstand by the actual stress it is subjected to.

• A factor of safety greater than 1 indicates that the material is stronger than the maximum stress i...read more

Factor of safety differs in civil and mechanical engineering contexts

• In civil engineering, factor of safety is used to ensure the safety of structures and materials under loads and stresses

• In mechanical engineering, factor of safety is used to ensure the safety of mechanical components and systems under loads and stresses

• Civil engineering typically uses a higher factor of safety than mechanical engineering

• For example, ...read more

Universal testing machine is used to test the strength and durability of materials.

• Used in engineering and manufacturing industries

• Tests materials such as metals, plastics, ceramics, and composites

• Measures properties like tensile strength, compression strength, and elasticity

• Helps in quality control and product development

• Examples of applications include testing of car parts, construction materials, and medical implant

Universal strength machine is used in fitness centers and rehabilitation facilities to measure and improve muscular strength.

• Used for resistance training and rehabilitation exercises

• Measures strength in various muscle groups

• Helps in designing personalized workout plans

• Examples: leg press, chest press, lat pulldown

• Can be used by athletes, seniors, and people with disabilities

Stress strain curve for mild steel shows the relationship between stress and strain during deformation.

• Initially, stress and strain are proportional to each other in the elastic region.

• Beyond the elastic limit, plastic deformation occurs and stress increases while strain also increases.

• The point of maximum stress is the ultimate tensile strength.

• The point of fracture is the breaking stress.

• The area under the curve repr...read more

Mechanics of materials deals with behavior of materials under load while strength of materials deals with their ability to withstand stress.

• Mechanics of materials focuses on the study of deformation and stress in materials under external loads.

• Strength of materials deals with the ability of materials to withstand stress without failure.

• Mechanics of materials is concerned with the behavior of materials under various typ...read more

A 4 stroke engine has four processes: intake, compression, combustion, and exhaust.

• Intake: Fuel and air enter the cylinder

• Compression: The piston compresses the fuel and air mixture

• Combustion: The spark plug ignites the mixture, causing an explosion that pushes the piston down

• Exhaust: The piston pushes the exhaust gases out of the cylinder

Criteria are essential for effective teaching and learning in the classroom.

• Criteria help to set clear expectations for students

• Criteria provide a basis for assessment and feedback

• Criteria can be used to differentiate instruction for diverse learners

• Examples of criteria include rubrics, checklists, and scoring guides