Speed Engineering Solutions Interview Questions, Process, and Tips

Stress is the force per unit area. Engineering stress-strain curve is based on original dimensions while true stress-strain curve is based on instantaneous dimensions. Moment is the force that causes rotation while torque is the measure of the force's ability to cause rotation.

• Stress is the force per unit area that a material experiences when subjected to an external force.

• Engineering stress-strain curve is based on th...read more

Aluminium bar has higher deformation in axial and bending, while steel bar has higher deformation in torsion.

• Aluminium has lower Young's modulus than steel, making it more deformable in axial and bending loads.

• Steel has higher shear modulus than aluminium, making it more resistant to torsion.

• The difference in deformation between the two materials can be quantified using finite element analysis.

• For example, a prismatic ...read more

Natural frequency is the frequency at which a system oscillates when disturbed from its equilibrium position.

• It is the frequency at which a system vibrates without any external force applied.

• It is determined by the stiffness and mass of the system.

• It is an important factor in designing structures to avoid resonance.

• Examples include the natural frequency of a guitar string or a suspension bridge.

Transmissibility is the ratio of the amplitude of vibration of a system with a force applied to it to the amplitude of the force applied.

• It is a measure of how much a system amplifies or attenuates vibrations.

• It is expressed as a ratio or a percentage.

• Transmissibility depends on the frequency of the force and the natural frequency of the system.

• A system with a low natural frequency will have a high transmissibility at ...read more

CT burdens refer to the impedance or resistance that a current transformer (CT) presents to the secondary circuit.

• CT burdens are typically expressed in ohms and represent the load that the CT must drive.

• The burden impedance can affect the accuracy of the CT's output signal.

• Common CT burdens include resistors, relays, meters, and other devices connected to the CT's secondary circuit.

• It is important to match the CT burde...read more

CT and PT are electrical devices used for measuring current and voltage in power systems.

• CT stands for Current Transformer and is used to measure high currents by stepping down the current to a lower value.

• PT stands for Potential Transformer and is used to measure high voltages by stepping down the voltage to a lower value.

• CTs and PTs are commonly used in power distribution systems to provide accurate measurements for

The factor of wire selection is determined by the current carrying capacity, voltage rating, insulation material, and environmental conditions.

• Current carrying capacity: Ensure the wire can handle the maximum current without overheating.

• Voltage rating: Select a wire with a voltage rating higher than the system voltage.

• Insulation material: Choose the appropriate insulation material based on temperature and environmental...read more

Selection of circuit breaker type depends on various factors such as voltage, current rating, breaking capacity, and application.

• Consider the voltage level - low voltage, medium voltage, high voltage

• Determine the current rating - thermal and magnetic settings

• Evaluate the breaking capacity - short circuit withstand capability

• Analyze the application - industrial, commercial, residential

• Types of circuit breakers include M

Geometric dimensions and tolerance are crucial in design engineering to ensure accurate and consistent manufacturing.

• Geometric dimensions refer to the physical measurements and characteristics of a part or component.

• Tolerances specify the allowable variations in dimensions to ensure proper fit and function.

• GD&T (Geometric Dimensioning and Tolerancing) is a system used to define and communicate engineering tolerances.

• Ex...read more