Cipher Brain Interview Questions and Answers

One of the licensors of equipment or units in the oil and gas industry is Honeywell UOP.

• Honeywell UOP is a leading licensor of refining, petrochemical, and gas processing technologies.

• They provide a wide range of equipment and units such as catalysts, adsorbents, reactors, and process systems.

• Their technologies help in improving efficiency, reducing emissions, and maximizing production in the oil and gas industry.

• Other licensors in the industry include TechnipFMC, Shell Globa...read more

Hand casting, hand packing, gunning, and ramming are methods of applying refractory materials manually.

• Hand casting involves pouring refractory material into a mold by hand.

• Hand packing involves manually placing refractory material into a mold or around a structure.

• Gunning involves spraying refractory material onto a surface using a high-pressure gun.

• Ramming involves manually compacting refractory material into a mold or around a structure using a ramming tool.

• These methods a...read more

Refractories used in oil and gas industry include fireclay, high alumina, silica, and magnesite.

• Fireclay refractories are used for lining furnaces and boilers.

• High alumina refractories are used for high temperature applications such as cracking units.

• Silica refractories are used for acid resistance in chemical processing units.

• Magnesite refractories are used for lining basic oxygen furnaces and converters.

• Other refractories used in the industry include zirconia, chromite, and...read more

Refractory materials are made up of various components such as oxides, carbides, nitrides, and borides.

• Common oxides used include alumina, magnesia, and silica

• Carbides such as silicon carbide and boron carbide are also used

• Nitrides like silicon nitride and boron nitride are used for high-temperature applications

• Borides like zirconium diboride and hafnium diboride are used for extreme conditions

• Other components like graphite, chromite, and mullite may also be used

Permit system in oil and gas plant is a safety procedure to control hazardous activities.

• Permit system ensures that all hazardous activities are authorized and controlled.

• It involves obtaining permits before starting any work that may pose a risk to personnel, equipment, or the environment.

• Permits are issued after a thorough risk assessment and safety checks.

• Examples of permits include hot work permit, confined space entry permit, and excavation permit.

• The permit system is an...read more

BD stands for Bulk Density, CCS stands for Cold Crushing Strength, and PLC stands for Permanent Linear Change.

• BD is the mass per unit volume of a refractory material.

• CCS is the ability of a refractory material to withstand compressive loads at room temperature.

• PLC is the change in length of a refractory material after being fired at high temperatures.

• These properties are important in determining the suitability of a refractory material for a particular application.

Abrasion resistant lining is a protective layer that prevents wear and tear caused by friction and impact.

• It is commonly used in industrial equipment and machinery to prolong their lifespan.

• Materials used for abrasion resistant lining include ceramics, rubber, and polymers.

• Examples of equipment that use abrasion resistant lining are chutes, hoppers, and conveyor belts.

• The thickness and type of lining used depend on the severity of the abrasion and the type of material being h...read more

Grit blasting is a process of cleaning or preparing a surface by propelling abrasive materials at high pressure.

• It is commonly used in industrial settings to remove rust, paint, or other coatings from metal surfaces.

• The abrasive materials used can vary depending on the surface being treated and the desired outcome.

• Grit blasting can also be used to create a rough surface texture for better adhesion of coatings or paints.

• It is important to wear protective gear, such as a respir...read more