Gulf Steel Works QA QC Engineer Interview Questions and Answers

Six Sigma is a methodology used in lean manufacturing to improve processes by reducing defects and variation.

• Six Sigma aims to achieve a level of quality where there are only 3.4 defects per million opportunities.

• It focuses on identifying and eliminating causes of defects to improve overall process efficiency.

• Six Sigma uses statistical tools and techniques to measure and analyze process performance.

• It involves defining...read more

TPM stands for Total Productive Maintenance and JH stands for Just in Time. TPM focuses on maintaining equipment to prevent breakdowns, while JH focuses on minimizing waste and improving efficiency.

• TPM involves proactive maintenance to prevent breakdowns and improve overall equipment effectiveness

• JH focuses on reducing waste, improving efficiency, and delivering products just in time to meet customer demand

• TPM steps in...read more

MCC stands for Motor Control Center and PCC stands for Power Control Center. They are electrical panels used to control and distribute power to motors and other electrical equipment.

• MCC panels are used to control and distribute power to motors in industrial settings.

• PCC panels are used to control and distribute power to various electrical equipment.

• Both panels play a crucial role in ensuring efficient and safe operatio...read more

Power factor is the ratio of real power to apparent power in an AC circuit. VFD stands for Variable Frequency Drive. AC motors run on alternating current while DC motors run on direct current.

• Power factor is a measure of how effectively electrical power is being used in a circuit.

• It is calculated by dividing the real power (in watts) by the apparent power (in volt-amperes).

• A power factor of 1 indicates that all the pow...read more

Types of load cells include strain gauge load cells, hydraulic load cells, and capacitive load cells.

• Strain gauge load cells measure the strain or deformation of a material.

• Hydraulic load cells use hydraulic fluid to measure force.

• Capacitive load cells measure changes in capacitance to determine force.

• Other types of load cells include piezoelectric load cells and pneumatic load cells.

Different types of protection are used in a substation to ensure safety and reliability.

• Overcurrent protection: Protects against excessive current flow.

• Overvoltage protection: Safeguards against high voltage surges.

• Differential protection: Detects faults by comparing currents entering and leaving the substation.

• Distance protection: Protects transmission lines based on the distance to the fault.

• Ground fault protection: ...read more

Different types of HT breakers are used in HT lines depending on the specific requirements.

• Air Circuit Breaker (ACB) is commonly used in HT lines for its high breaking capacity and quick response time.

• Vacuum Circuit Breaker (VCB) is another popular choice due to its compact size and low maintenance requirements.

• SF6 Circuit Breaker is used for high voltage applications as it provides excellent arc quenching properties.

• O...read more