Usha Martin Assistant Engineer Interview Questions and Answers

Q1. Different between LT and HT ?
Ans. 
LT stands for Low Tension and HT stands for High Tension. They refer to different voltage levels used in electrical systems.
• LT refers to voltage levels below 1000V, while HT refers to voltage levels above 1000V.

• LT is commonly used in residential and small commercial buildings, while HT is used in industrial and large commercial buildings.

• LT systems are generally safer and easier to maintain compared to HT systems.

• Examp...read more
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Q2. What is circuit breakers ?
Ans. 
Circuit breakers are electrical switches designed to protect electrical circuits from damage caused by overload or short circuit.
• Circuit breakers automatically interrupt the flow of electricity when a fault is detected.

• They can be reset manually after tripping to restore power.

• Common types include thermal-magnetic, magnetic, and hydraulic-magnetic circuit breakers.

• Examples include miniature circuit breakers (MCBs) and
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Q3. What is the role of a diodein an electrical circuit
Ans. 
A diode is an electronic component that allows current to flow in one direction only.
• Diodes are commonly used to convert AC to DC in power supplies.

• They are also used to protect circuits from reverse polarity.

• Diodes have a forward voltage drop, typically around 0.7V.

• They can be used in rectifier circuits to convert AC to DC.

• Diodes are also used in signal processing circuits to separate AC and DC components.
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Q4. Explain the difference between ac and dc
Ans. 
AC and DC are two types of electrical current with different characteristics.
• AC stands for alternating current, which periodically changes direction.

• DC stands for direct current, which flows in one direction.

• AC is commonly used in household appliances and power distribution systems.

• DC is commonly used in batteries and electronic devices.

• AC can be easily converted to different voltage levels using transformers.

• DC is mor...read more
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Q5. Why you have choose engineering ?
Ans. 
I chose engineering because I have always been fascinated by how things work and wanted to use my problem-solving skills to make a positive impact on the world.
• Passion for understanding how things work

• Desire to use problem-solving skills

• Interest in making a positive impact on the world
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Q6. What do you know about this JSW steel
Ans. 
JSW Steel is one of India's leading steel producers with a strong presence in various sectors.
• JSW Steel is a part of the JSW Group, a conglomerate with interests in steel, energy, infrastructure, cement, and more.

• The company has multiple manufacturing plants in India, including in Karnataka, Maharashtra, and Tamil Nadu.

• JSW Steel produces a wide range of products including hot-rolled coils, cold-rolled coils, galvanized...read more
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Q1. What is steel industry process?
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Q2. What is hot rolled and cold rolled?
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Q1. How to calculate BOM in building project.
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Emergency handling Boiler and auxiliary

Just for harresment of employees

Q1. Slilica in main steam line of boiler
Ans. 
Silica in main steam line of boiler can cause severe damage and reduce efficiency.
• Silica can lead to the formation of hard deposits on boiler tubes, reducing heat transfer efficiency.

• High levels of silica can also cause erosion and corrosion of boiler components.

• Regular monitoring and control of silica levels in boiler feedwater is essential to prevent damage.

• Treatment methods such as ion exchange or reverse osmosis ca
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Q2. Coal gcv of power plant
Ans. 
Coal Gross Calorific Value (GCV) is a key parameter in determining the efficiency of a power plant.
• GCV is a measure of the amount of heat released when a unit mass of coal is combusted.

• It is typically expressed in units of kilojoules per kilogram (kJ/kg) or British thermal units per pound (Btu/lb).

• Higher GCV coal is preferred in power plants as it produces more energy per unit mass.

• The GCV of coal can vary depending on
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Q1. About Iron and steel Quality.
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Q1. About subject and mechanical related question
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Q2. What is gear,pully,belt drive ,chain etc
Ans. 
Gear, pulley, belt drive, and chain are mechanical components used to transmit motion and power between rotating shafts.
• Gear: Toothed wheel that meshes with another gear to transmit motion.

• Pulley: Wheel with a grooved rim used with a belt to transmit power.

• Belt drive: System of belts and pulleys used to transfer power between shafts.

• Chain: Series of connected links used to transmit motion and power.

• Examples: Gear train...read more
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Q1. Iron making related questions
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Q1. Safety rules and your general knowledge
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