20+ Senior Engineer L2 Interview Questions and Answers

Dump unit is used for vertical movement while slide unit is used for horizontal movement.

• Dump unit is used to lift and lower heavy objects vertically.

• Slide unit is used to move objects horizontally.

• Dump unit is commonly used in construction for dumping materials like gravel or sand.

• Slide unit is commonly used in manufacturing for moving products along an assembly line.

• Dump unit typically has a hydraulic system for lifting and lowering, while slide unit may use a motor or manu...read more

MS 100 stringer is a manual stringer machine while AM 050FS stringer is a fully automatic stringer machine.

• MS 100 stringer is manual, requires operator intervention

• AM 050FS stringer is fully automatic, operates without manual intervention

• MS 100 stringer may have lower throughput compared to AM 050FS stringer

Safety equipment in lamination can be checked by monitoring thermostat, oil pressure, and float level.

• Check thermostat for proper functioning by setting it to desired temperature and observing if it maintains the temperature.

• Monitor oil pressure in the lamination machine to ensure it is within the recommended range for safe operation.

• Inspect oil float level to make sure it is at the correct level for proper lubrication and cooling of the equipment.

To troubleshoot a laminator heater coil issue, check for power supply, continuity of the coil, and potential damage or wear.

• Check power supply to the heater coil

• Test continuity of the coil using a multimeter

• Inspect the coil for any signs of damage or wear

• Replace the coil if necessary

Star design of geo fixture is a method of arranging multiple fixtures in a circular pattern.

• The fixtures are arranged in a circular pattern with one fixture at the center and the rest around it.

• The fixtures are evenly spaced apart from each other.

• This design is commonly used in stage lighting and event production.

• It allows for a more dynamic and versatile lighting setup.

• The star design can also be used in other types of fixtures, such as audio equipment.

NPN sensors are commonly used due to their cost-effectiveness, versatility, and ease of integration.

• Cost-effective compared to PNP sensors

• Versatile in various applications

• Easy to integrate with different systems

• Commonly available in the market

A crystal oscillator generates precise frequencies using quartz crystals and capacitors for stability and tuning.

• Crystal oscillators use quartz crystals to produce stable frequencies due to their piezoelectric properties.

• The crystal vibrates at a specific frequency when an electric field is applied, creating oscillations.

• Capacitors are often connected in parallel or series with the crystal to adjust the frequency and improve stability.

• For example, in a microcontroller circuit...read more

A respot fixture is a tool used in the manufacturing process of printed circuit boards to accurately place components on the board.

• It is used to place components on the board with high accuracy

• It is commonly used in the manufacturing process of printed circuit boards

• It helps to ensure that the components are placed in the correct location on the board

• It can be manual or automated depending on the manufacturing process

• It is an important tool in ensuring the quality of the fina...read more

PLC and DCS are both control systems used in industrial automation, but differ in their architecture and application.

• PLC stands for Programmable Logic Controller and is used for discrete control applications.

• DCS stands for Distributed Control System and is used for process control applications.

• PLC is typically used in smaller systems with limited I/O points, while DCS is used in larger systems with extensive I/O points.

• PLC is designed for standalone operation, while DCS is de...read more

Troubleshooting problems involves identifying the root cause and implementing solutions.

• Identify the symptoms of the problem

• Gather relevant information and data

• Isolate the root cause through systematic testing and analysis

• Implement solutions based on findings

• Test the solutions to ensure the problem is resolved

Pin tolerance for geo fixture is typically +/- 0.005 inches.

• Pin tolerance refers to the allowable deviation from the specified pin diameter.

• Geo fixture refers to a fixture used for holding and positioning parts during manufacturing processes.

• Tolerance may vary depending on the specific application and requirements.

The pin tolerance for respot fixture depends on the specific application and requirements.

• Pin tolerance is the allowable deviation from the nominal pin size.

• It is important to consider factors such as the material of the pins and the fixture, as well as the manufacturing process.

• Examples of pin tolerances range from +/- 0.001 inches to +/- 0.005 inches.

Stringer machines can face various issues; troubleshooting involves identifying and resolving common problems effectively.

• Check for power supply issues; ensure the machine is plugged in and the outlet is functional.

• Inspect the threading; improper threading can cause jams or misalignment.

• Clean the machine regularly; dust and debris can affect performance.

• Examine the needle; a bent or dull needle can lead to stitching problems.

• Review the tension settings; incorrect tension can ...read more

Geo fixture is a device used to simulate the movement of a vehicle or object in a specific geographic location.

• Geo fixture is used in testing and development of navigation systems, GPS devices, and autonomous vehicles.

• It can simulate various driving conditions such as different terrains, weather conditions, and traffic scenarios.

• Geo fixture can also be used to test the accuracy of maps and location-based services.

• It typically consists of a platform with sensors and actuators ...read more

Dump unit is a device used to collect and dispose of waste material.

• Dump units are commonly used in industries such as construction and mining.

• They can be attached to vehicles such as trucks or excavators.

• Dump units come in various sizes and capacities depending on the intended use.

• They are designed to safely and efficiently transport waste material to a disposal site.

3GPP standards define call flows and interfaces for mobile communication networks.

• 3GPP standards specify the protocols and procedures for communication between different network elements.

• Examples of interfaces defined by 3GPP include S1 interface between eNodeB and MME in LTE networks.

• Call flows in 3GPP standards outline the sequence of messages exchanged between network elements during a call setup or handover.

End effector is the tool or device attached to the end of a robotic arm or manipulator that interacts with the environment.

• End effector is the part of a robotic arm that performs the desired task.

• It can be a gripper, a welding torch, a drill, a spray nozzle, or any other tool depending on the application.

• End effectors are designed to interact with the environment in a specific way to achieve the desired outcome.

• They can be interchangeable to allow for different tasks to be pe...read more

Common workflow mechanisms include task delegation, approval processes, and notifications.

• Task delegation allows for tasks to be assigned to specific individuals or teams.

• Approval processes ensure that tasks are reviewed and approved before moving forward.

• Notifications keep all parties involved informed of task status and updates.

• Workflow engines, such as Apache Airflow and Microsoft Power Automate, can automate these mechanisms.

• Business Process Model and Notation (BPMN) is a...read more

DMR can be controlled by setting up access controls, monitoring usage, and implementing encryption.

• Set up access controls to restrict who can view, edit, or delete data in the DMR.

• Monitor usage to track who is accessing the DMR and what actions they are taking.

• Implement encryption to protect the data in the DMR from unauthorized access.

• Regularly review and update access controls, monitoring processes, and encryption methods to ensure continued control over the DMR.

Capacity sensors measure the amount of a substance or material that can be held or contained.

• Capacity sensors can be used to monitor levels of liquids, gases, or solids in tanks or containers.

• They work by detecting changes in pressure, weight, or volume to determine the amount of substance present.

• Examples include ultrasonic sensors for measuring liquid levels in tanks, pressure sensors for monitoring gas levels, and weight sensors for measuring solid materials.

• Capacity senso...read more

A capacity sensor is a device that measures the amount of a substance or material that can be held or stored in a given space.

• Capacity sensors are commonly used in industries such as manufacturing, agriculture, and logistics to monitor and control the amount of materials in tanks, silos, or containers.

• These sensors can be based on various technologies such as ultrasonic, radar, or pressure sensors to accurately measure the volume or weight of the substance.

• Capacity sensors pl...read more

A standard list of components used in a particular industry or field.

• The list may vary depending on the industry or field.

• It may include hardware, software, and other materials.

• Examples include a standard component list for building a computer or for electrical engineering.

• The list may be updated periodically to include new components or remove outdated ones.

A slide unit is a component used in machinery to move objects or parts in a linear motion.

• Slide units are commonly used in manufacturing and automation industries.

• They can be powered by various mechanisms such as electric motors, pneumatic or hydraulic systems.

• Slide units can be customized to fit specific applications and can vary in size and load capacity.

• Examples of slide units include linear guides, ball screws, and linear actuators.

Payload calculations involve determining the weight and capacity of a system to ensure optimal performance and safety.

• Payload refers to the total weight a vehicle or system can carry, including passengers and cargo.

• In aerospace, payload calculations are crucial for determining the maximum weight a spacecraft can carry into orbit.

• For example, a commercial airplane must calculate payload to ensure it does not exceed its maximum takeoff weight (MTOW).

• In software engineering, pay...read more

EVA stands for Economic Value Added, a financial performance measure that calculates the profit generated by a company's operations after accounting for the cost of capital.

• EVA is calculated by subtracting the cost of capital from the company's net operating profit after tax (NOPAT).

• It is used to determine if a company is creating value for its shareholders above and beyond the cost of capital.

• Positive EVA indicates that the company is generating wealth for shareholders, whil...read more

There are various types of weld guns used in welding processes.

• MIG weld gun

• TIG weld gun

• Stick weld gun

• Plasma weld gun

• Resistance weld gun

Control valves are used to regulate the flow, pressure, temperature, or level of a fluid in a process system.

• There are different types of control valves such as globe valves, butterfly valves, ball valves, and plug valves.

• Globe valves are commonly used for throttling and controlling flow.

• Butterfly valves are often used for large flow applications.

• Ball valves provide quick shut-off and are suitable for on/off control.

• Plug valves are used for low-pressure applications and provi...read more