Jindal Power Junior Engineer Interview Questions and Answers

Q1. What is refractories
Ans. 
Refractories are materials that can withstand high temperatures and are used in furnaces, kilns, and other high-temperature applications.
• Refractories are made from materials such as clay, silica, alumina, and magnesia.

• They are used to line furnaces, kilns, and other high-temperature equipment to protect them from heat and corrosion.

• Refractories are classified based on their chemical composition, physical properties, an...read more
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Q2. How many types refractories
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There are three types of refractories: acidic, basic, and neutral.
• Refractories are materials that can withstand high temperatures and are used in furnaces, kilns, and other high-temperature applications.

• Acidic refractories are made of materials like silica and alumina and are used in acidic environments.

• Basic refractories are made of materials like magnesia and dolomite and are used in basic environments.

• Neutral refrac...read more
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Q1. Cricket knowledge?
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Q2. Current affairs
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Q1. My trade related
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Q2. What is Ohm's law?
Ans. 
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
• Ohm's law is represented by the formula V = I * R, where V is voltage, I is current, and R is resistance.

• It helps in calculating the current flowing through a circuit when the voltage and resistance are known.

• It can also be used to determi...read more
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Diploma last semester assignment

Q1. Technical questions
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Q2. Reasoning questions
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Q3. Science questions
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Q4. English question
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Q5. Mathematics question
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Q1. Introduction about your self
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Q1. Previous work experience required questions
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Q1. Working technical questions
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Q1. Family background and all
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Q1. Volume find tank
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Q1. Turbine generator work
Ans. 
Turbine generator work involves converting mechanical energy into electrical energy using steam or water.
• Turbine generators use steam or water to rotate a turbine connected to a generator

• The rotating turbine spins magnets inside the generator, creating an electric current

• The electric current is then transmitted through power lines for use in homes and industries
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Q2. And follow turbine diagram
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Q1. Question regarding motor, generator, Alternator and transformer.
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Q2. What are causes of hot bearings?
Ans. 
Causes of hot bearings include lack of lubrication, overloading, misalignment, and contamination.
• Lack of lubrication: Insufficient or degraded lubricant can cause increased friction and heat.

• Overloading: Excessive load on the bearing can lead to overheating.

• Misalignment: Improper alignment of the bearing can cause it to operate under stress and generate heat.

• Contamination: Foreign particles or debris in the bearing can
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Q3. What causes are responsible for over-heating of Commutator in a DC motor?
Ans. 
Over-heating of Commutator in a DC motor can be caused by factors like excessive current, poor ventilation, dirty environment, and worn-out brushes.
• Excessive current flowing through the motor can cause the commutator to overheat.

• Poor ventilation around the motor can lead to inadequate cooling, resulting in overheating.

• A dirty environment can cause dust and debris to accumulate on the commutator, hindering heat dissipat...read more
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Q4. What will happen if a shunt motor is directly connected to the supply line?
Ans. 
The shunt motor will run at dangerously high speeds and may get damaged.
• The motor will run at its no-load speed, which is much higher than its rated speed.

• This can lead to overheating and mechanical stress on the motor components.

• The motor may get damaged or fail prematurely if directly connected to the supply line.
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Q1. Question related to motor, generator Alternator and transformer
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