10+ ADD Vector Interview Questions and Answers

Answering questions related to transformers, MOSFETs, generators, and major projects.

• A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction.

• MOSFET is a type of transistor used for amplification and switching of electronic signals. It is used in power supplies, motor control, and audio amplifiers.

• A generator converts mechanical energy into electrical energy, while a motor converts electrical energy into mechan...read more

The laws of thermodynamics and the difference between 2-stroke and 4-stroke engines.

• The laws of thermodynamics are fundamental principles that govern energy and its transformations.

• There are four laws of thermodynamics: zeroth law, first law, second law, and third law.

• The zeroth law states that if two systems are in thermal equilibrium with a third system, they are in thermal equilibrium with each other.

• The first law, also known as the law of energy conservation, states that ...read more

A sequential timer is a device that controls the timing of events in a sequence.

• It is used to control the timing of events in a specific sequence.

• It can be programmed to start and stop at specific times.

• It is commonly used in industrial automation and control systems.

• Examples include traffic lights, conveyor belts, and assembly lines.

Iron-carbon diagram shows the relationship between carbon content and properties of iron-carbon alloys.

• The diagram is used to determine the microstructure and properties of steel.

• It shows the different phases of iron and carbon at different temperatures.

• The phases include ferrite, austenite, cementite, and pearlite.

• The diagram is important for understanding heat treatment processes and material selection.

• For example, high carbon steel has greater hardness and wear resistance ...read more

Steel can be classified into various types based on its composition and properties.

• Carbon steel - contains carbon as the main alloying element

• Stainless steel - contains chromium and nickel for corrosion resistance

• Alloy steel - contains other elements like manganese, silicon, and copper for improved properties

• Tool steel - contains tungsten, molybdenum, and cobalt for high hardness and wear resistance

• High-speed steel - contains tungsten, molybdenum, and cobalt for high-temperat...read more

Yes, India is gradually moving towards a cashless economy.

• The government's push towards digital payments through initiatives like UPI, BHIM, and Aadhaar Pay.

• Increasing adoption of mobile wallets and online payment platforms like Paytm, Google Pay, and Amazon Pay.

• Growing popularity of contactless payments through NFC-enabled cards and mobile phones.

• Demonetization in 2016 also played a role in promoting cashless transactions.

• However, there are still challenges like low digital ...read more

Bernoulli's theorem states that as the speed of a fluid increases, its pressure decreases.

• The theorem is based on the principle of conservation of energy.

• It is commonly used in fluid dynamics to calculate the pressure and velocity of fluids in motion.

• The theorem is applicable to both incompressible and compressible fluids.

• An example of Bernoulli's theorem in action is the lift generated by an airplane wing.

• The theorem is named after Swiss mathematician Daniel Bernoulli who fi...read more

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals.

• Blast furnace is used to extract iron from its ore through a chemical process called reduction.

• It operates by continuously feeding the raw materials (iron ore, coke, and limestone) at the top of the furnace.

• Hot air is blown into the bottom of the furnace to create a high temperature environment for the chemical reactions to take place.

• The molten iron sinks to the bottom of the fu...read more

Stress and strain are related to the deformation of materials under external forces.

• Stress is the force applied per unit area, while strain is the resulting deformation or change in shape.

• Stress is a measure of the internal resistance of a material to deformation, while strain is a measure of the material's response to stress.

• Stress is typically measured in units of force per unit area (such as Pascal or psi), while strain is dimensionless.

• Stress and strain are related by the...read more