Lumax Auto Technologies Ltd Senior Design Engineer Interview Questions and Answers

I have achieved several milestones throughout my career as a Senior Engineer.

• Successfully led a team of engineers to develop and implement a new software system, resulting in a 20% increase in efficiency.

• Received recognition for designing and implementing a cost-effective solution that reduced production downtime by 30%.

• Contributed to the development of a groundbreaking technology that revolutionized the industry, lead...read more

Die casting and machining defects are common in manufacturing processes.

• Die casting defects include porosity, shrinkage, cold shuts, and flash.

• Machining defects include burrs, chatter marks, and tool marks.

• Die casting defects can be caused by improper temperature, pressure, or metal flow.

• Machining defects can be caused by dull tools, improper speeds and feeds, or poor fixturing.

• Defects can lead to part failure, reduced

Filling and high speed ratio formula is used to calculate the filling time of a container with a specific volume of liquid at a given flow rate.

• Filling and high speed ratio formula is V/Q

• V is the volume of the container and Q is the flow rate of the liquid

• The formula is used to determine the time it takes to fill a container with a specific volume of liquid at a given flow rate

• The higher the flow rate, the faster the c

I2C is a communication protocol used to connect multiple devices in a network. In Linux, the speed of I2C can be configured.

• I2C speed can be set using the 'i2cset' command in Linux

• The speed can also be configured in the device tree

• The maximum speed supported by the hardware should be considered when setting the speed

• Different devices may require different speeds for optimal performance

A pure virtual function is a function declared in a base class without implementation, which must be overridden by derived classes.

• Pure virtual functions are declared with the syntax: virtual void functionName() = 0;

• Classes containing pure virtual functions are called abstract classes and cannot be instantiated.

• Pure virtual functions provide a way to achieve polymorphism in C++.

• Example: virtual void draw() = 0; // decl...read more