Thejo Engineering Mechanical Head Interview Questions and Answers

Q1. Motor type, Pump lowering, ESR piping etc.
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Q2. Solar Specification
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Q1. Notice period is negotiable
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Q2. 30%hike on current ctc
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Q1. Define SFD ,BMD
Ans. 
SFD stands for Shear Force Diagram and BMD stands for Bending Moment Diagram in structural analysis.
• SFD shows the variation of shear force along the length of a beam or structure.

• BMD shows the variation of bending moment along the length of a beam or structure.

• Both diagrams are essential for analyzing the internal forces in a structure.

• They are commonly used in civil and mechanical engineering for designing and analyzi...read more
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Q2. Calculate Thrust forces for beam
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Thrust forces for beams can be calculated using equations of equilibrium and considering external loads.
• Calculate the sum of all external forces acting on the beam.

• Determine the direction of the forces (compression or tension) based on the beam's support conditions.

• Apply equations of equilibrium to calculate the thrust forces at different points along the beam.

• Consider any distributed loads or moments that may affect t...read more
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Q1. Are you know the batching plant erection and how many years of experience
Ans. 
Yes, I have experience in batching plant erection for 3 years.
• I have worked on the erection of batching plants for 3 years

• I am familiar with the process of setting up and installing batching plants

• I have experience in troubleshooting and maintenance of batching plants

• I have knowledge of the safety protocols and regulations related to batching plant erection
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Q2. Yes and 5 years above are preferred
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Q1. Why you are quite the present company
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Q2. Professional growth and working culture
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Q1. Substation questions
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Q2. Primary engineering questions
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Q1. What are the applications of motor starters?
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Q2. What are the fundamentals of the power triangle?
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Q1. How to charge the Transformer?
Ans. 
A transformer can be charged by applying a voltage to its primary winding.
• To charge a transformer, connect a power source to its primary winding

• The voltage applied to the primary winding creates a magnetic field

• This magnetic field induces a voltage in the secondary winding

• The transformer is charged and ready to transfer power
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Q2. Parts of transformer
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Parts of a transformer include the core, windings, and insulation.
• Core: Provides a path for magnetic flux and is usually made of laminated iron or steel.

• Windings: Consist of primary and secondary coils, which are wound around the core.

• Insulation: Prevents electrical leakage and is used to separate the windings and core.

• Tap changer: Allows for voltage regulation by changing the number of turns in the winding.

• Cooling sys...read more
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The test is very difficult you have to complete all 20 questions which consist GC , subject related

Q1. What is the wave trape?
Ans. 
A wave trap is a device used in electrical engineering to prevent unwanted signals or frequencies from entering a system.
• Wave traps are typically used in power systems to filter out specific frequencies that can cause interference.

• They are designed to allow only desired signals to pass through while blocking unwanted signals.

• Wave traps can be used in substations, transmission lines, and other electrical systems to impr...read more
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Q2. Which types of circuit breaker use in substation
Ans. 
Types of circuit breakers used in substations include air circuit breakers, oil circuit breakers, vacuum circuit breakers, and SF6 circuit breakers.
• Air circuit breakers are commonly used in low voltage applications.

• Oil circuit breakers are used in high voltage applications.

• Vacuum circuit breakers are compact and reliable, suitable for medium voltage applications.

• SF6 circuit breakers are used in high voltage substations
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