African Industries Assistant General Manager Electrical and Instrumentation Interview Questions and Answers

Experienced retail professional with strong leadership skills and a passion for customer service.

• Over 5 years of retail management experience

• Proven track record of increasing sales and improving customer satisfaction

• Strong leadership and team-building skills

• Passionate about providing excellent customer service

• Bachelor's degree in Business Administration

Alumina is obtained from bauxite through the Bayer process.

• Bauxite is crushed and mixed with sodium hydroxide to form a slurry.

• The slurry is heated and pressurized in a digester to dissolve the alumina content.

• The resulting solution is cooled and filtered to remove impurities.

• The purified solution is then heated to precipitate the alumina as a white powder.

• The alumina powder is washed, dried, and calcined to produce pu...read more

The reaction for Al extraction from alumina involves the reduction of alumina using carbon or electrolysis.

• Alumina (Al2O3) is first converted into aluminum chloride (AlCl3) by reacting with hydrochloric acid.

• The aluminum chloride is then reduced to aluminum metal by either carbon reduction or electrolysis.

• In carbon reduction, carbon (usually in the form of coke) is heated with the aluminum chloride to produce aluminum ...read more

There are four main types of cast iron: gray iron, white iron, ductile iron, and malleable iron.

• Gray iron is the most common type and has excellent castability and good machinability.

• White iron is very hard and brittle, often used for wear-resistant applications.

• Ductile iron has high strength and ductility, making it suitable for a wide range of applications.

• Malleable iron is heat-treated to improve its strength and du

DCDA process is used to produce high concentration sulphuric acid.

• DCDA stands for Double Contact Double Absorption process.

• It involves two absorption towers and two contact towers.

• Sulphur dioxide is oxidized to sulphur trioxide in the contact towers.

• Sulphur trioxide is then absorbed in the absorption towers to produce sulphuric acid.

• The process is highly efficient and produces high concentration sulphuric acid.

• DCDA pro...read more

MSDS of Sulphuric Acid provides information on its properties, hazards, and safety precautions.

• MSDS stands for Material Safety Data Sheet

• Sulphuric acid is a highly corrosive and hazardous substance

• The MSDS provides information on the physical and chemical properties of the substance, as well as its potential health effects and safety precautions

• Safety precautions may include wearing protective clothing and equipment, h...read more