Luthra Group Company QC Chemist Interview Questions and Answers

Q1. Lab testing....
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Q2. All parameters...
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Q1. Plant related ...
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Q2. Cetp,etp,stp...
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Q1. Difference between abstract and interface. Create an object for an abstract class.
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructors, fields, and non-abstract methods along with abstract methods.

• Interfaces can only have abstract methods and constants, no constructors or fields.

• An abstract class can provide a default implementation for some methods, while an interface cannot.

• An abstract class can be exten...read more
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Q2. Difference between findelement and findelements
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findelement returns the first matching element on the page, findelements returns a list of all matching elements.
• findelement returns a single WebElement, findelements returns a list of WebElements

• findelement throws NoSuchElementException if no element is found, findelements returns an empty list

• Example: driver.findElement(By.id("exampleId")) vs driver.findElements(By.className("exampleClass"))
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Q3. Test scenarios for facebook login page
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Test scenarios for Facebook login page
• Verify login with valid credentials

• Verify login with invalid credentials

• Verify login with empty username and password fields

• Verify login with incorrect password

• Verify login with incorrect username

• Verify login with special characters in username and password

• Verify login with locked account

• Verify login with expired password

• Verify login with CAPS LOCK on

• Verify login with multiple logi
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Q4. Difference between regression and integration testing
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Regression testing ensures that new code changes do not adversely affect existing functionality, while integration testing checks if different modules work together correctly.
• Regression testing focuses on retesting existing functionality after code changes

• Integration testing checks if different modules work together as expected

• Regression testing is usually automated to save time and effort

• Integration testing may involv...read more
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Q5. Program to remove white spaces from string without any inbuilt function and explain
Ans. 
Program to remove white spaces from string without any inbuilt function
• Iterate through each character in the string

• Create a new string and add non-white space characters to it

• Return the new string without white spaces
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Q6. How to validate the checkbox is checked
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To validate if a checkbox is checked, use Selenium WebDriver to locate the checkbox element and then use the isSelected() method to check if it is checked.
• Locate the checkbox element using Selenium WebDriver

• Use the isSelected() method to check if the checkbox is checked

• Assert the result to validate if the checkbox is checked
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Q7. How you can validate the button present on the UI is actually blue in colour
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To validate the button color, inspect the CSS properties or use a color picker tool.
• Inspect the CSS properties of the button element to check the color value

• Use a color picker tool to sample the color of the button on the UI

• Compare the sampled color with the expected blue color value
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Q8. How you can validate the data with any value is present in the table in selenium
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You can validate data presence in a table using Selenium by locating the table element and then searching for the desired value.
• Locate the table element using Selenium WebDriver

• Iterate through the rows and columns of the table to find the desired value

• Use assertions to validate if the value is present in the table
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Q1. Can we overload/override function having same signatures but have different return types in java!
Ans. 
No, in Java you cannot overload/override functions based on return types.
• In Java, method overloading is based on the number and type of parameters, not the return type.

• Method overriding is based on the method signature, which includes the method name, parameter types, and order, but not the return type.

• Attempting to overload or override a method based solely on return type will result in a compilation error.
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Q2. Difference between put and patch
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PUT is used to update or replace an entire resource, while PATCH is used to update or modify a part of a resource.
• PUT is idempotent, meaning multiple identical requests will have the same effect as a single request.

• PATCH is not necessarily idempotent, as multiple identical requests may have different effects.

• PUT requires the client to send the entire updated resource, while PATCH only requires the client to send the sp...read more
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Q3. How you can print numbers from one to 1000 without using any loop
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Use recursion to print numbers from 1 to 1000 without using loops
• Create a recursive function that takes a number as input

• Print the number and call the function with the next number until 1000 is reached
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Q4. About the project you've worked on
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Q5. What are the majors have in this you have faced while performing testinge
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Q1. Regarding EIA/EMP Procedures?
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Q2. MoEF&CC Guidelines? Saraly & package in previous company?
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MCQ based 50 marks 50 questions test.

Q1. Family background
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Q2. Relocation issue
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Q3. Why applied in Ramky
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Detailed information about the previous company where i worked.Discussed with project manager regarding my roles and assignments i had taken on work location.Along with that we discussed about my academic projects and skills that i had mastered in my career

Interviewers gave me the task to elaborate the design of pollution control equipments and assessments

Q1. Tell Me About work Experience
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Q2. How to Arrest leakages?
Ans. 
To arrest leakages, identify the source, implement preventive measures, monitor regularly, and take corrective actions.
• Identify the source of leakages through regular audits and inspections.

• Implement preventive measures such as installing leak detection systems or improving maintenance procedures.

• Monitor regularly by analyzing data and conducting spot checks.

• Take corrective actions promptly to fix leaks and prevent fut
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Q3. Types of grouting Method
Ans. 
Grouting methods include cementitious grouting, chemical grouting, and pressure grouting.
• Cementitious grouting involves mixing cement, water, and additives to create a flowable material for filling gaps.

• Chemical grouting uses chemical compounds to fill voids and stabilize soil or rock formations.

• Pressure grouting injects grout under pressure to fill cracks and voids in structures.

• Examples: epoxy grouting, urethane grou
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Q4. How much Concrete Consumed in your last project!
Ans. 
Approximately 500 cubic yards of concrete were consumed in the last project.
• The amount of concrete consumed in a project can vary depending on the size and scope of the project.

• Factors such as the type of structure being built, the design specifications, and the location can all impact the amount of concrete needed.

• For example, a small residential project may only require a few cubic yards of concrete, while a large co...read more
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