Wipro Interview Questions and Answers

Process control parameters in molding, melting, and core shop are critical factors that ensure quality and consistency in the manufacturing process.

• Temperature: Maintaining the correct temperature is crucial for proper molding, melting, and core formation.

• Pressure: Controlling the pressure during molding helps achieve the desired shape and density of the product.

• Curing time: The duration for which the molded or melted material is kept under specific conditions to ensure prope...read more

SG iron grades are a type of cast iron with a specific chemical composition.

• SG iron, also known as ductile iron or nodular iron, is primarily composed of iron, carbon, silicon, and small amounts of other elements.

• The carbon content in SG iron grades is typically between 3.2% and 3.6%.

• Silicon content ranges from 1.8% to 2.8%.

• Other elements present in smaller quantities include manganese, phosphorus, sulfur, and trace amounts of magnesium and copper.

• The specific chemical compos...read more

QC focuses on identifying defects in products, while QA focuses on preventing defects from occurring.

• QC is a reactive process that involves inspecting and testing products to identify defects.

• QA is a proactive process that involves planning and implementing measures to prevent defects.

• QC is concerned with the end product, while QA is concerned with the entire process.

• QC involves conducting inspections, tests, and audits to ensure product quality.

• QA involves establishing quali...read more

To control clay% in sand, various methods can be employed such as washing, screening, and chemical treatments.

• Washing the sand can help remove clay particles.

• Screening the sand can separate larger clay particles.

• Chemical treatments like flocculants can aid in clay removal.

• Using additives like lime or cement can alter the clay content.

• Regular testing and monitoring of clay% is essential for effective control.