General Motors Interview Questions, Process, and Tips

Resultant stiffness of two equal parts of a cut spring attached in parallel is 4K.

• When two springs are attached in parallel, the resultant stiffness is the sum of their individual stiffness.

• The stiffness of a spring is directly proportional to its length and inversely proportional to its cross-sectional area.

• Therefore, when a spring of length L and stiffness K is cut into two equal parts, each part will have a length o...read more

The natural frequency of a simple mass system with the mass of the spring considered.

• Natural frequency is the frequency at which a system oscillates without any external force.

• The formula for natural frequency is sqrt(k/m)

• Where k is the spring constant and m is the mass of the system.

• The mass of the spring is added to the total mass of the system.

• Example: A mass of 2 kg is attached to a spring with a spring constant of...read more

The first natural frequency of a semi-definite system is zero, which represents rigid body motion.

• The first natural frequency of a system is the frequency at which it oscillates without any external force applied.

• A semi-definite system has one or more degrees of freedom that are constrained, resulting in rigid body motion.

• The first natural frequency of a semi-definite system is always zero, regardless of the number of ...read more

Designing a shaft under bending, torsion and axial loads using Tresca or Von-Mises theory for ductile material.

• Shaft design involves considering the effects of bending, torsion, and axial loads.

• Tresca theory assumes that yielding occurs when the maximum shear stress in a material reaches a critical value.

• Von-Mises theory assumes that yielding occurs when the equivalent stress in a material reaches a critical value.

• Duct...read more

Hydrostatic state of stress is when stress is applied uniformly in all directions. The theory of failure used is Maximum Shear Stress Theory.

• Hydrostatic state of stress occurs when stress is applied uniformly in all directions.

• It is characterized by a state of zero shear stress.

• The theory of failure used for hydrostatic stress is Maximum Shear Stress Theory.

• This theory states that failure occurs when the maximum shear ...read more

Different ways to operate a system above its natural frequency

• Adding mass to the system

• Changing the stiffness of the system

• Applying external force to the system

• Using active control techniques

• Using passive control techniques

• Using hybrid control techniques

I am a recent engineering graduate with a passion for problem-solving and a strong work ethic.

• I recently graduated with a degree in engineering from XYZ University.

• During my time in school, I completed several projects that required me to think critically and creatively to solve complex problems.

• I am a quick learner and am always eager to take on new challenges.

• In my free time, I enjoy tinkering with electronics and bu...read more

GM is a leading global automotive company with a strong commitment to innovation and sustainability.

• GM has a rich history of over 100 years in the automotive industry

• GM is committed to innovation and sustainability, with a focus on electric and autonomous vehicles

• GM offers a diverse range of career opportunities in engineering, manufacturing, and business

• GM has a strong culture of teamwork and collaboration

• GM is a glob

Yes, I have faced such challenges in my life.

• I started learning a new language and found it more difficult than expected, but I persevered and eventually became fluent.

• I took on a leadership role in a group project and struggled to manage conflicting personalities and opinions, but I learned valuable communication and conflict resolution skills.

• I attempted to start a small business and faced unexpected financial and lo...read more