Schindler Group ITI Wireman (Electrical Mantenenc) Interview Questions and Answers

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Q1. Technical questions related to your stream
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Q1. There two students sit each other back to back. One diagram will given one have to describe and another one have to draw hearing the describe & vice versa
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Q1. What id diode ?
Ans. 
A diode is an electronic component that allows current to flow in one direction and blocks it in the opposite direction.
• Diodes are made of semiconductor materials, such as silicon or germanium.

• They have two terminals: an anode (positive terminal) and a cathode (negative terminal).

• When a diode is forward-biased, it allows current to flow through it.

• When a diode is reverse-biased, it blocks the current.

• Diodes are commonl...read more
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Q2. Draw the diagram of diode
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A diode is a two-terminal electronic component that allows current to flow in one direction and blocks it in the opposite direction.
• A diode has an anode and a cathode terminal.

• It is represented by a triangle with a line at the base.

• The arrowhead of the triangle points towards the cathode terminal.

• The line at the base represents the anode terminal.

• The symbol of a diode is often accompanied by its part number or label.
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Q3. Compare conductor insulator semiconductor
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Conductor, insulator, and semiconductor are materials with different electrical conductivity properties.
• Conductor: Materials that allow the flow of electric current easily. Examples: copper, aluminum.

• Insulator: Materials that do not allow the flow of electric current. Examples: rubber, glass.

• Semiconductor: Materials with intermediate conductivity. Examples: silicon, germanium.
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Q1. I am service department for job karta hu or
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Q2. Call back and maintenance
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Q3. Call back and very good service
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Q1. What is elevater
Ans. 
An elevator is a vertical transportation device used to move people or goods between floors in a building.
• Elevators are powered by electric motors and typically consist of a cab or platform that moves along a fixed track within a shaft.

• They are equipped with safety features such as emergency brakes and backup power systems.

• Elevators can be found in various types of buildings, including residential, commercial, and indu...read more
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Q2. What is rectifier
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A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).
• Converts AC to DC

• Used in power supplies and electronic devices

• Types include half-wave, full-wave, and bridge rectifiers

• Diodes are commonly used in rectifiers
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Q1. How OSG function
Ans. 
OSG (Open Science Grid) functions as a distributed computing infrastructure for scientific research.
• OSG connects resources from various institutions to create a large-scale computing grid.

• Users can access computing power and storage resources through OSG for their research projects.

• OSG manages job scheduling, data management, and security for the distributed computing environment.
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Q2. How VFD functions
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A VFD (Variable Frequency Drive) controls the speed of an AC motor by varying the frequency and voltage of the power supplied to it.
• VFD converts fixed frequency AC power to variable frequency AC power

• It adjusts the motor speed by changing the frequency of the power supply

• VFDs can improve energy efficiency by matching motor speed to the load requirements

• They can also provide soft start and stop functions to reduce mecha...read more
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Q3. How you'll check the callback process
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To check the callback process, I would monitor the response time, accuracy, and customer satisfaction.
• Monitor the response time of callbacks to ensure they are timely

• Check the accuracy of information provided during callbacks

• Collect feedback from customers to gauge their satisfaction with the callback process
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Q4. Maintenance process
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Q1. Mujhe kone company me service engineer ke liye join karna hai
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Q2. Kone is the best company
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Q1. Good company kone
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Q2. Good company kone
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Q1. Good company kone
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Q2. Good company kone
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Q1. Good company kone
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Q2. Good company kone
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Q1. Why does the railways generator engine die black smoke
Ans. 
The railways generator engine may emit black smoke due to issues with fuel, air intake, or combustion.
• Possible reasons for black smoke include incorrect fuel-to-air ratio, clogged air filters, or faulty injectors

• Incomplete combustion can also lead to black smoke emissions

• Regular maintenance and proper tuning can help prevent black smoke issues
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Q1. Tell me something about your
Ans. My name Ashwani kumar i am live in delhi shahdara my i want to be good engineer
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