LCJ Technology (Shenzhen) Limited Interview Questions and Answers

GD&T stands for Geometric Dimensioning and Tolerancing, a system for defining and communicating engineering tolerances.

• GD&T is a symbolic language used on engineering drawings to specify the allowable variations in form, size, and orientation of features.

• It helps ensure that parts fit together properly and function as intended.

• GD&T uses symbols such as concentricity, flatness, perpendicularity, and position to communic...read more

Surface finish symbol indicates the type of surface treatment required on a part for manufacturing purposes.

• Surface finish symbols are typically found on engineering drawings to specify the type of finish needed on a part.

• The symbol consists of a horizontal line with various geometric shapes and numbers that indicate the required finish.

• Examples of surface finish symbols include Ra for roughness average, Rz for maximum...read more

A CNC machine works by using computer programs to control the movement of the machine's tools and workpiece to create precision parts.

• CNC machines use computer programs to control the movement of the cutting tools and workpiece.

• The programs are created using CAD/CAM software and converted into G-code instructions.

• The machine reads the G-code instructions and moves the tools along the specified paths to cut and shape th...read more

I have over 10 years of experience working in various companies, ranging from startups to multinational corporations.

• Started my career at a small startup where I learned the importance of agility and adaptability

• Moved on to a mid-sized company where I honed my leadership skills and managed cross-functional teams

• Currently working at a multinational corporation where I have gained experience in global operations and stra

Overall equipment effectiveness (OEE) is a measure of how well a manufacturing process is performing.

• OEE is calculated by multiplying availability, performance, and quality rates.

• It helps identify areas for improvement in production processes.

• Example: If a machine has an availability of 90%, performance of 95%, and quality of 98%, the OEE would be 83.7%.

I am a recent graduate with a degree in Mechanical Engineering, passionate about quality control and continuous improvement.

• Graduated with a degree in Mechanical Engineering

• Passionate about quality control and continuous improvement

• Completed internships in manufacturing companies

• Strong problem-solving skills

• Excellent attention to detail

I have a strong background in quality engineering with a proven track record of improving processes and ensuring product quality.

• I have a Bachelor's degree in Engineering with a focus on quality control

• I have completed internships where I implemented quality improvement initiatives resulting in cost savings

• I have excellent problem-solving skills and attention to detail

• I am familiar with quality management systems such

The ASME B31.3 code is referred for hydrostatic testing and the ASME B31.1 code is referred for pneumatic testing.

• ASME B31.3 code is the Process Piping Code and it provides guidelines for hydrostatic testing of process piping systems.

• ASME B31.1 code is the Power Piping Code and it provides guidelines for pneumatic testing of power piping systems.

• Hydrostatic testing involves filling the system with water or another suit...read more

The ASME code for repair work depends on the specific type of equipment or structure being repaired.

• ASME Section VIII Division 1 is commonly used for the repair of pressure vessels.

• ASME B31.3 is often referenced for the repair of piping systems.

• ASME Section IX provides guidelines for the repair of welding procedures and qualifications.

• ASME PCC-2 provides guidance for the repair of equipment and piping in various indust...read more