Schindler Intern Interview Questions and Answers

Hi

There were 4 sections and first one was quant, second one was logical, third was English and finally 3 coding questions in last section

4 codes and 5 technical questions

Q1. Explain multi threading
Ans. 
Multi threading is the ability of a CPU to execute multiple threads concurrently.
• Allows for parallel execution of tasks, improving performance

• Each thread has its own stack and runs independently

• Threads can communicate and synchronize using shared memory

• Examples: running multiple tasks simultaneously in a web server, processing data in parallel
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Q2. What is polymorphism
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types.

• Examples include method overloading and method overriding in object-oriented programming.
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Q3. Diff b/w inner and outer joins
Ans. 
Inner join returns only the rows that have matching values in both tables, while outer join returns all rows from both tables.
• Inner join: returns rows with matching values in both tables

• Outer join: returns all rows from both tables, with NULL values where there is no match

• Example: Inner join - SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

• Example: Outer join - SELECT * FROM table1 LEFT OUTER JOIN table
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We were given a topic ( renewable v/s non renewable energy) , two minutes were given for thinking. .. everyone started racing .. i wanted to settle down and speak after one or two people are done.. and tried not to rush ... But everyone started talking simultaneously.. everytime I tried to speak someone else started ..

So one or two times i interrupted and said.." our voices are overlapping , lets just speak one at a time"..it worked for some time but ultimately that race continued so i also spoke a Little bit in the favour of renewable ( overlapping initially ,, but later on he/she stopped) .. that's it

1. Dont be rude 

2. Mind that its a GD and not a debate

3. Be respectful and humble

4. Give others a chance to speak if you think someone is not able to .. ( by calling out their names..if you remember..

Q1. What is the working of generator?
Ans. 
A generator is a device that converts mechanical energy into electrical energy through electromagnetic induction.
• Generators work on the principle of electromagnetic induction.

• They consist of a coil of wire rotating in a magnetic field.

• The rotation of the coil induces a current in the wire, producing electricity.

• Generators are commonly used in power plants, wind turbines, and portable generators.

• Different types of gener
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Q2. Components of generator
Ans. 
Components of a generator include engine, alternator, fuel system, voltage regulator, cooling and exhaust system, and control panel.
• Engine: provides power to the generator

• Alternator: converts mechanical energy into electrical energy

• Fuel system: supplies fuel to the engine

• Voltage regulator: maintains a constant voltage output

• Cooling and exhaust system: keeps the generator running at optimal temperature

• Control panel: all
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Q3. What do you know about Cummins?
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First round was of aptitude plus java questions

Q1. Basic js questions : diff betn == and ===, let, var,const etc
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Q2. Coding problem related to array
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