Saanvi Engineering Interview Questions and Answers

Welding techniques involve various methods of joining metals together using heat and pressure. Electrode designation refers to the classification of welding electrodes based on their composition and characteristics.

• Different welding techniques include MIG welding, TIG welding, stick welding, and flux-cored welding.

• Electrode designation typically consists of a four or five-digit code that indicates the type of electrode, welding position, and current type.

• For example, E7018 is...read more

Transformers conditions

• Transformers should be kept in a dry and well-ventilated area

• They should be protected from extreme temperatures and direct sunlight

• Regular maintenance and inspections are necessary to ensure proper functioning

• Transformers should be kept away from flammable materials

• Proper grounding and electrical connections are essential for safety

• Transformers should be regularly checked for signs of overheating or abnormal noise

Heat transfer is the process of thermal energy moving from one object or substance to another.

• Heat transfer occurs through three main mechanisms: conduction, convection, and radiation.

• Conduction is the transfer of heat through direct contact between objects or substances.

• Convection is the transfer of heat through the movement of fluids or gases.

• Radiation is the transfer of heat through electromagnetic waves.

• Examples of heat transfer include a hot pan heating the food through ...read more

Mass transfer is the movement of substances from one place to another due to a concentration gradient.

• Mass transfer involves the transfer of mass or substances between phases, such as from a liquid to a gas or from a solid to a liquid.

• It occurs due to differences in concentration, temperature, pressure, or other driving forces.

• Examples of mass transfer include evaporation, condensation, absorption, distillation, and extraction.

• Mass transfer is important in various industries ...read more

Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.

• Derivation involves conservation of energy for a fluid element along a streamline

• Applications include explaining lift in aviation, flow in pipes, and operation of carburetors

• Bernoulli's equation is used to analyze fluid flow in various engineering applications

Steam is used in the primary reformer to convert hydrocarbons into hydrogen and carbon monoxide.

• Steam is used as a reactant in the primary reforming process to convert hydrocarbons into hydrogen and carbon monoxide.

• The steam helps to facilitate the endothermic reactions that take place in the primary reformer.

• The steam also helps to control the temperature inside the reformer by absorbing heat during the reactions.

• Maintaining the proper steam to hydrocarbon ratio is crucial f...read more