L&T Power Junior Engineer Interview Questions and Answers

Q1. Maintenance phylosophy
Ans. Depends on equipment running hour, criticality, availability and standby.
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Q1. Why do you want to work with us?
Ans. I am a good learner and I want to initiate my career with the Torrent Power
Answered by RISHABH KUMAR KANNOUJIYA
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Q1. What is the cause of Transients in the power system?
Ans. 
Transients in the power system are caused by sudden changes in voltage or current.
• Transients can be caused by lightning strikes, switching operations, or faults in the power system.

• Lightning strikes can create high voltage transients that can damage equipment.

• Switching operations, such as turning on or off a large load, can cause voltage transients.

• Faults in the power system, such as short circuits, can also result in ...read more
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Q1. Tell me about yourself.
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Q2. Notice period of my present organisation
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Q1. Site based question about TG Deck Slab, Ash Handling Package
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Gate 2017 test for appti. bsnsn

Q1. What is your r strength
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Q2. How do you read newspapers
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Basic math and quantitative aptitude related questions

Q1. Tell me about thecompany
Ans. 
The company is a leading technology firm specializing in software development and engineering solutions.
• Founded in 2005 by a group of software engineers

• Provides services in web development, mobile app development, and cloud computing

• Clients include Fortune 500 companies such as Google and Microsoft
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Q2. How will you solve a critical problem coming to you as a engineer
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Q1. What is synchronous and histerisis motor
Ans. 
Synchronous motor runs at a constant speed while hysteresis motor has a rotor that follows the rotating magnetic field.
• Synchronous motor is used in applications where constant speed is required, such as in clocks and timers.

• Hysteresis motor is used in applications where precise control of speed is required, such as in record players and tape recorders.

• Synchronous motor has a stator and rotor that rotate at the same spe...read more
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Q2. Different between plc and scada
Ans. 
PLC is a hardware device that controls industrial processes, while SCADA is a software system that monitors and controls those processes.
• PLC is a programmable logic controller that controls the input/output of industrial processes.

• SCADA is a supervisory control and data acquisition system that collects and analyzes data from the industrial processes.

• PLC is a hardware device, while SCADA is a software system.

• PLC is used...read more
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Q3. Different between relay and contactor
Ans. 
Relays are used for low power applications while contactors are used for high power applications.
• Relays are typically used in control circuits to switch low power loads such as lights and fans.

• Contactors are used to switch high power loads such as motors and compressors.

• Relays have a lower current rating than contactors.

• Contactors have larger contacts and can handle higher currents than relays.

• Relays are typically smal...read more
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Q4. Different between switch and relay
Ans. 
Switches are used to control the flow of current in a circuit, while relays are used to switch a circuit on or off.
• Switches are manually operated, while relays are electrically operated.

• Switches are used in low voltage applications, while relays are used in high voltage applications.

• Switches are simple in construction, while relays are more complex.

• Examples of switches include light switches and toggle switches, while ...read more
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Q1. Different between switch and timer
Ans. 
Switch is an electronic component used to connect or disconnect a circuit while a timer is a device used to measure time intervals.
• Switch is used to turn on/off a device while timer is used to control the duration of a device's operation.

• Switch is a binary device with two states (on/off) while timer can be analog or digital and can measure time in seconds, minutes, or hours.

• Examples of switches include light switches, ...read more
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