Raphe mPhibr Mechanical Technician Interview Questions and Answers

Basic aptitude test was conducted in groups and was the first round of screening.

I had two rounds of GD on of general topic and other topic of mechanical background.A small talk was to be given on any topic after the GD.

Q1. What are the different types of stresses?
Ans. 
Different types of stresses include tensile, compressive, shear, bending, and torsional stress.
• Tensile stress occurs when a material is pulled apart, like stretching a rubber band.

• Compressive stress occurs when a material is pushed together, like squeezing a sponge.

• Shear stress occurs when a material is twisted or cut, like cutting a piece of paper with scissors.

• Bending stress occurs when a material is bent, like bendi...read more
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Q2. How did you use the knowledge of Engineering in your college project?
Ans. 
I used my engineering knowledge in my college project by applying principles of mechanical design and analysis.
• I utilized my understanding of engineering materials to select appropriate components for the project.

• I applied principles of statics and dynamics to analyze the structural integrity and performance of the design.

• I used CAD software to create detailed 3D models of the project, incorporating engineering toleran...read more
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Q3. What is stress concentration?
Ans. 
Stress concentration is the phenomenon of localized stress in a material due to the presence of a geometric feature or a defect.
• It occurs when there is a sudden change in the shape or size of a component.

• It can lead to premature failure of the material.

• Examples include sharp corners, holes, notches, and cracks.

• It can be reduced by using fillets, chamfers, and other design modifications.

• Finite element analysis can be us
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Q4. How will you reduce stress concentration?
Ans. 
Stress concentration can be reduced by using fillets, chamfers, and blending corners.
• Using fillets and chamfers to smooth out sharp corners

• Blending corners to distribute stress evenly

• Using multiple holes instead of a single hole

• Using a gradual change in cross-section instead of a sudden change

• Using materials with higher ductility

• Using surface treatments like shot peening or grinding

• Avoiding sharp corners and notches
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Q1. What are the various types of beams?
Ans. 
There are several types of beams including cantilever, simply supported, fixed, continuous, and overhanging beams.
• Cantilever beams are supported at one end and free at the other.

• Simply supported beams are supported at both ends and have no moment resistance.

• Fixed beams are supported at both ends and have moment resistance.

• Continuous beams have more than two supports and can resist bending moments.

• Overhanging beams have
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Q1. Why do you want to become a Design Engineer?
Ans. 
I want to become a Design Engineer because I am passionate about creating innovative solutions and enjoy the problem-solving aspect of engineering.
• I have always been fascinated by how things work and how they are designed.

• I enjoy the challenge of finding creative solutions to complex problems.

• Design engineering allows me to combine my technical skills with my creativity.

• I find satisfaction in seeing my designs come to ...read more
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