Cummins
Lagran Software Solutions Interview Questions and Answers
Q1. Which gas is most harmful of all emissions
The most harmful gas emission is carbon dioxide (CO2).
CO2 is a greenhouse gas that contributes to global warming and climate change.
It is released by burning fossil fuels like coal, oil, and gas.
Other harmful emissions include sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter (PM).
Q2. What are various heat treatments to lower stresses,
Heat treatments like annealing, tempering, and stress relieving can lower stresses in materials.
Annealing involves heating the material to a high temperature and then slowly cooling it to reduce internal stresses.
Tempering involves heating the material to a specific temperature and then cooling it quickly to reduce stresses.
Stress relieving involves heating the material to a specific temperature and then cooling it slowly to reduce stresses.
Other heat treatments like quenchin...read more
Q3. Adaptability problem?
Adaptability problem refers to difficulty in adjusting to new situations or changes.
Adaptability problem can arise due to lack of experience or exposure to new situations.
It can also be caused by fear of the unknown or fear of failure.
Adaptability problem can be overcome by developing a growth mindset and being open to learning and trying new things.
Examples of adaptability problem include difficulty in adjusting to a new job, new environment, or new technology.
Q4. Where is maximum stress?
Maximum stress occurs at the point where the force is applied or concentrated.
Maximum stress occurs at the point of highest force concentration.
It can also occur at points of sudden change in geometry or material properties.
Examples include corners, edges, and holes in a structure.
Stress concentration factors can be calculated to determine the maximum stress.
Proper design and material selection can help minimize stress concentrations.
Q5. Strength of materials
Strength of materials is the study of how materials withstand external forces and stresses.
It involves analyzing the behavior of materials under different loads and conditions.
Factors such as elasticity, plasticity, and fracture mechanics are considered.
Examples include calculating the maximum weight a bridge can support or designing a building to withstand earthquakes.
Testing methods such as tensile testing and compression testing are used to determine material properties.
Kn...read more
Q6. Draw stress diagram
A stress diagram shows the distribution of stress in a structure or component.
Stress diagrams are typically drawn using a graphical method, such as the Mohr's circle.
They can be used to determine the maximum stress and the location of stress concentrations.
Stress diagrams can also be used to analyze the effects of loads on a structure or component.
They are commonly used in engineering and mechanics to design and test structures.
Stress diagrams can be drawn for various types o...read more
Q7. Probability of fracture in rod
Probability of fracture in rod depends on various factors such as material, stress, and manufacturing process.
The material of the rod plays a crucial role in determining its fracture probability.
Higher stress levels increase the probability of fracture.
The manufacturing process can also affect the probability of fracture.
Factors such as temperature, corrosion, and fatigue can also impact the probability of fracture.
Probability of fracture can be calculated using fracture mech...read more
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