Enza Zaden Interview Questions and Answers

Different measuring instruments and their least count, along with hands-on experience.

• Vernier caliper - 0.02 mm

• Micrometer screw gauge - 0.01 mm

• Dial gauge - 0.01 mm

• Height gauge - 0.02 mm

• Thread pitch gauge - 0.01 mm

• Using instruments requires proper calibration and handling

• Hands-on experience can be gained through practice and training

Welding defects include porosity, cracks, incomplete fusion, and distortion. Measures to reduce defects include proper training, inspection, and maintenance.

• Porosity: caused by gas entrapment, can be reduced by proper shielding gas and electrode selection

• Cracks: caused by high stress or improper cooling, can be reduced by preheating and controlling cooling rate

• Incomplete fusion: caused by insufficient heat or improper technique, can be reduced by proper technique and inspecti...read more

5S principles are Sort, Set in order, Shine, Standardize, and Sustain. Quality is important to ensure customer satisfaction and business success.

• Sort - eliminate unnecessary items to improve efficiency

• Set in order - organize items for easy access and productivity

• Shine - maintain cleanliness and prevent defects

• Standardize - establish consistent processes for quality control

• Sustain - continuously improve and maintain the 5S principles

• Quality is important to meet customer expect...read more

Spatter is formed while welding due to the expulsion of molten metal from the weld pool.

• Spatter is caused by the high temperature of the welding process.

• It can be reduced by adjusting the welding parameters such as voltage, current, and wire feed speed.

• Using a welding gun with a shorter nozzle can also help reduce spatter.

• Spatter can cause defects in the weld and may need to be removed before finishing.

• It can also be a safety hazard if it lands on skin or clothing.

QA QC is crucial in ensuring the quality and reliability of mechanical engineering products and processes.

• QA QC helps identify and prevent defects in mechanical engineering products and processes.

• It ensures compliance with industry standards and regulations.

• It helps improve efficiency and reduce costs by identifying areas for improvement.

• Examples include testing and inspecting mechanical components, monitoring production processes, and conducting audits.

• QA QC also plays a cri...read more

GD&T stands for Geometric Dimensioning and Tolerancing.

• GD&T is a system used to define and communicate engineering tolerances.

• It provides a standardized language for specifying the form, size, orientation, and location of features on a part.

• GD&T uses symbols, feature control frames, and datums to convey the desired tolerances and requirements.

• It ensures that parts are manufactured and inspected consistently, leading to improved quality and interchangeability.

• For example, GD&T...read more

There are several types of welding, including MIG, TIG, Stick, and Flux-Cored welding.

• MIG (Metal Inert Gas) welding uses a wire electrode and a shielding gas to join two pieces of metal together.

• TIG (Tungsten Inert Gas) welding uses a tungsten electrode and a shielding gas to create a precise and clean weld.

• Stick welding (also known as Shielded Metal Arc Welding) uses a consumable electrode coated in flux to create a strong bond between two pieces of metal.

• Flux-Cored welding ...read more