Tata Hitachi Construction Machinery Welder Interview Questions and Answers

SMPS stands for Switched Mode Power Supply. It is an electronic power supply that uses switching regulators to convert electrical power efficiently.

• SMPS is commonly used in electronic devices such as computers, televisions, and mobile phones.

• It is more efficient than traditional linear power supplies as it uses less energy and generates less heat.

• SMPS can be designed to provide different output voltages and currents de...read more

A DC-DC converter is an electronic circuit that converts a DC voltage level to another DC voltage level.

• DC-DC converters are used to efficiently convert one DC voltage level to another.

• They are commonly used in power supplies, battery chargers, and electric vehicles.

• DC-DC converters can be classified into two types: linear and switching.

• Linear DC-DC converters are simple but inefficient, while switching DC-DC converter...read more

Measuring instruments are tools used to quantify physical quantities or properties.

• Measuring instruments are used to obtain accurate and precise measurements.

• They are commonly used in various fields such as physics, engineering, and manufacturing.

• Examples of measuring instruments include rulers, thermometers, voltmeters, and spectrometers.

Calibration is the process of adjusting or verifying the accuracy of an instrument or tool.

• Calibration ensures that an instrument or tool is accurate and reliable.

• It involves comparing the readings of the instrument to a known standard.

• Calibration is important in industries such as manufacturing, engineering, and healthcare.

• Examples of instruments that require calibration include thermometers, scales, and blood pressur

CNC stands for Computer Numerical Control. It is a manufacturing process that uses computerized machines to create precise and complex shapes.

• CNC machines are used in various industries such as aerospace, automotive, and medical.

• They are programmed using CAD (Computer-Aided Design) software to create 2D or 3D designs.

• CNC machines can cut, drill, mill, and shape materials such as metal, wood, and plastic.

• They offer high...read more

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

• Transformers are commonly used in power distribution systems to step up or step down voltage levels.

• They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.

• The primary winding is connected to the input voltage source, while the...read more

Transformer parts are essential components that help in the functioning of a transformer.

• The core is the central part of a transformer that is made of laminated sheets of iron or steel.

• The windings are the coils of wire that are wrapped around the core and carry the electrical current.

• The insulation is used to separate the windings and prevent electrical arcing.

• The tap changer is a device that allows for the adjustment...read more