Wabtec Apprentice Interview Questions and Answers

Q1. About the signaling system
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About the safety for at a time of working

Q1. About motor windings Types of capacitors
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Q2. Electrical circuits
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Q1. Introduce yourself, stages of bug, testing type, linux command
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Q1. Teamcenter installation, configuration,environment files
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Q2. Teamcenter admin,teamcenter manufacturing
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Q1. I forgot that because i selected there one year ago
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Logical,reasoning and blood relationship related questions were given for the test

Q1. What is you name
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Q2. What is plc how it is different from other microcontrollers
Ans. 
PLC stands for Programmable Logic Controller, used for industrial automation. It is different from other microcontrollers in terms of design, functionality, and applications.
• PLCs are specifically designed for industrial automation tasks, such as controlling machinery on a factory assembly line.

• PLCs are more robust and reliable than general-purpose microcontrollers, as they are built to withstand harsh industrial enviro...read more
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Q1. What is Power factor
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Power factor measures the efficiency of electrical power usage, indicating how effectively electrical energy is converted into useful work.
• Power factor (PF) is defined as the ratio of real power (kW) to apparent power (kVA).

• A power factor of 1 (or 100%) indicates all the power is being effectively converted into work.

• Low power factor can lead to increased energy costs and reduced system capacity.

• Example: A motor with a...read more
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Q2. Explain the principles of transformer testing
Ans. 
Transformer testing ensures reliability and performance through various assessments of electrical and mechanical properties.
• Insulation Resistance Testing: Measures the insulation quality to prevent electrical leakage.

• Turns Ratio Testing: Compares the primary and secondary winding voltages to ensure correct transformation.

• Power Factor Testing: Assesses the dielectric losses in the insulation system.

• Temperature Rise Test...read more
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Q1. Experience in years
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Q2. Salary expected in
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I expect a competitive salary based on my skills, experience, and industry standards for a Test Engineer role.
• Research industry standards: For example, Glassdoor or Payscale can provide insights into average salaries for Test Engineers.

• Consider my experience level: If I have 5 years of experience, I might expect a higher salary than someone just starting.

• Location matters: Salaries can vary significantly based on the co...read more
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Q1. Why main method is static
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The main method is static in Java because it needs to be called by the JVM without creating an instance of the class.
• Static methods can be called without creating an instance of the class.

• The main method is the entry point of a Java program, so it needs to be accessible without creating objects.

• Having the main method as static ensures that it can be called by the JVM before any objects are created.
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Q2. Can we overload construction
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Overloading construction is possible in programming by defining multiple functions with the same name but different parameters.
• In programming, overloading construction refers to defining multiple functions with the same name but different parameters.

• The compiler determines which function to call based on the number and types of arguments passed to it.

• For example, you can have multiple functions named 'calculate' that a...read more
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