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RNC Consultants Interview Questions and Answers

Updated 4 May 2022

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PMC Engineer Interview Questions & Answers

user image Anonymous

posted on 4 May 2022

I applied via Referral and was interviewed in Apr 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. M25 mix design Construction Material testing
  • Q2. Development of roads o Explain of quantity construction of drain and sanitary flow
  • Ans. 

    Quantity of construction of drain and sanitary flow is determined based on the road development plan and local regulations.

    • The quantity of construction of drain and sanitary flow depends on the size and type of road being developed.

    • Local regulations and environmental factors also play a role in determining the quantity of construction.

    • For example, a highway may require larger and more extensive drainage systems than a ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Northing to say it work good apportunity to young stars 🤩

PMC Engineer Interview Questions asked at other Companies

Q1. Development of roads o Explain of quantity construction of drain and sanitary flow
View answer (1)

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. Explain the difference between ArrayList and LinkedList in Java. When would you choose one over the other?
  • Q2. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? Can you explain how the ReentrantLock compares to synchronized?
  • Q3. What is the difference between == and .equals() in Java? When should each be used, and what issues can arise from improper usage?
  • Q4. How does the Java garbage collector work? Can you describe the different types of garbage collection algorithms available in Java?
  • Q5. What are the main features of Java 8? Can you explain how lambdas and the Stream API have changed the way Java applications are written?
  • Q6. Describe the differences between checked and unchecked exceptions in Java. Provide examples and explain how to handle them properly.
  • Q7. What is the Java Memory Model, and how does it affect multithreading and synchronization? How does volatile help ensure memory visibility?
  • Q8. Can you explain the difference between method overloading and method overriding in Java? Provide examples where each should be used.
Interview experience
3
Average
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. Explain the difference between ArrayList and LinkedList in Java. When would you choose one over the other?
  • Ans. 

    ArrayList uses dynamic arrays, while LinkedList uses doubly linked nodes for storage. Choose based on performance needs.

    • ArrayList is backed by a dynamic array, allowing fast random access. Example: accessing an element by index is O(1).

    • LinkedList consists of nodes that hold data and references to the next and previous nodes, making insertions/deletions O(1) if the node is known.

    • ArrayList has a fixed size, and resizing ...

  • Answered by AI
  • Q2. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? Can you explain how the ReentrantLock compares to synchronized?
  • Q3. What is the difference between == and .equals() in Java? When should each be used, and what issues can arise from improper usage?
  • Ans. 

    == checks reference equality, while .equals() checks value equality in Java objects.

    • == compares memory addresses (references) of objects.

    • Example: String a = new String("test"); String b = new String("test"); a == b returns false.

    • .equals() compares the actual content of objects.

    • Example: a.equals(b) returns true.

    • Use == for primitive types (int, char, etc.) and .equals() for object comparisons.

    • Improper use of == can lead

  • Answered by AI
  • Q4. How does the Java garbage collector work? Can you describe the different types of garbage collection algorithms available in Java?
  • Ans. 

    Java's garbage collector automatically manages memory by reclaiming unused objects, enhancing performance and preventing memory leaks.

    • Java uses automatic garbage collection to manage memory, freeing developers from manual memory management.

    • The main garbage collection algorithms in Java include: Serial GC, Parallel GC, Concurrent Mark-Sweep (CMS), and G1 GC.

    • Serial GC is a simple, single-threaded collector suitable for s...

  • Answered by AI
  • Q5. What are the main features of Java 8? Can you explain how lambdas and the Stream API have changed the way Java applications are written?
  • Ans. 

    Java 8 introduced lambdas and the Stream API, enhancing functional programming and data processing capabilities.

    • Lambdas: Enable concise representation of functional interfaces, e.g., (x, y) -> x + y.

    • Stream API: Facilitates functional-style operations on collections, e.g., list.stream().filter(x -> x > 10).collect(Collectors.toList()).

    • Default Methods: Allow adding new methods to interfaces without breaking exis...

  • Answered by AI
  • Q6. Describe the differences between checked and unchecked exceptions in Java. Provide examples and explain how to handle them properly.
  • Ans. 

    Checked exceptions must be declared or handled, while unchecked exceptions do not require explicit handling in Java.

    • Checked exceptions are subclasses of Exception but not of RuntimeException.

    • Unchecked exceptions are subclasses of RuntimeException.

    • Example of checked exception: IOException, which must be caught or declared.

    • Example of unchecked exception: NullPointerException, which does not require explicit handling.

    • Chec...

  • Answered by AI
  • Q7. What is the Java Memory Model, and how does it affect multithreading and synchronization? How does volatile help ensure memory visibility?
  • Ans. 

    The Java Memory Model defines how threads interact through memory, ensuring visibility and ordering of shared variables.

    • The Java Memory Model (JMM) specifies how threads interact through memory and what behaviors are allowed.

    • It ensures visibility of shared variables across threads, preventing stale data issues.

    • Synchronization mechanisms (like synchronized blocks) enforce mutual exclusion and visibility.

    • The 'volatile' k...

  • Answered by AI
  • Q8. Can you explain the difference between method overloading and method overriding in Java? Provide examples where each should be used.
  • Ans. 

    Method overloading allows multiple methods with the same name but different parameters; overriding redefines a method in a subclass.

    • Method Overloading: Same method name, different parameter types or counts.

    • Example of Overloading: 'int add(int a, int b)' and 'double add(double a, double b)'.

    • Use Overloading for convenience and readability when methods perform similar functions.

    • Method Overriding: Redefining a method in a ...

  • Answered by AI
Interview experience
3
Average
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. Explain the difference between ArrayList and LinkedList in Java. When would you choose one over the other?
  • Ans. 

    ArrayList uses a dynamic array for storage, while LinkedList uses a doubly linked list structure.

    • ArrayList provides fast random access (O(1)) due to its underlying array structure.

    • LinkedList allows for efficient insertions and deletions (O(1)) at both ends and in the middle.

    • ArrayList has a fixed size, requiring resizing (O(n)) when capacity is exceeded, while LinkedList grows dynamically.

    • Example: Use ArrayList for freq...

  • Answered by AI
  • Q2. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? Can you explain how the ReentrantLock compares to synchronized?
  • Ans. 

    Java's synchronized keyword offers simplicity but has limitations compared to ReentrantLock in flexibility and performance.

    • Synchronized is easy to use and requires less code, e.g., 'synchronized(this) { ... }'.

    • It can lead to thread contention and performance bottlenecks in high-concurrency scenarios.

    • Synchronized blocks are not interruptible, meaning a thread cannot be stopped while waiting for a lock.

    • ReentrantLock prov...

  • Answered by AI
  • Q3. What is the difference between == and .equals() in Java? When should each be used, and what issues can arise from improper usage?
  • Ans. 

    == checks reference equality, while .equals() checks value equality in Java objects.

    • == compares memory addresses (references) of objects.

    • Example: String a = new String("test"); String b = new String("test"); a == b returns false.

    • .equals() compares the actual content of objects.

    • Example: a.equals(b) returns true for the same content.

    • Use == for primitive types (int, char, etc.) and .equals() for object comparisons.

    • Imprope...

  • Answered by AI
  • Q4. How does the Java garbage collector work? Can you describe the different types of garbage collection algorithms available in Java?
  • Q5. What are the main features of Java 8? Can you explain how lambdas and the Stream API have changed the way Java applications are written?
  • Ans. 

    Java 8 introduced lambdas, Stream API, and other features that enhance functional programming and improve code readability.

    • Lambdas: Enable concise representation of functional interfaces. Example: (x, y) -> x + y.

    • Stream API: Facilitates functional-style operations on collections. Example: list.stream().filter(x -> x > 10).collect(Collectors.toList()).

    • Default Methods: Allow adding new methods to interfaces with...

  • Answered by AI
  • Q6. Describe the differences between checked and unchecked exceptions in Java. Provide examples and explain how to handle them properly.
  • Ans. 

    Checked exceptions must be handled or declared, while unchecked exceptions do not require explicit handling.

    • Checked exceptions are subclasses of Exception, excluding RuntimeException and its subclasses.

    • Unchecked exceptions are subclasses of RuntimeException and Error.

    • Example of checked exception: IOException, which must be caught or declared in the method signature.

    • Example of unchecked exception: NullPointerException, ...

  • Answered by AI
  • Q7. What is the Java Memory Model, and how does it affect multithreading and synchronization? How does volatile help ensure memory visibility?
  • Ans. 

    The Java Memory Model defines how threads interact through memory, ensuring visibility and ordering of shared variables.

    • The Java Memory Model (JMM) specifies how threads interact through memory and what behaviors are allowed.

    • It ensures visibility of shared variables between threads, preventing stale data issues.

    • Synchronization mechanisms (like synchronized blocks) enforce mutual exclusion and visibility.

    • The 'volatile' ...

  • Answered by AI
  • Q8. Can you explain the difference between method overloading and method overriding in Java? Provide examples where each should be used.
  • Ans. 

    Method overloading allows multiple methods with the same name but different parameters; overriding replaces a superclass method in a subclass.

    • Method Overloading: Same method name, different parameters (type, number, or both).

    • Example of Overloading: 'int add(int a, int b)' and 'double add(double a, double b)'.

    • Use Overloading for convenience and readability when methods perform similar functions.

    • Method Overriding: Redefi...

  • Answered by AI
Interview experience
3
Average
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. Explain the difference between ArrayList and LinkedList in Java. When would you choose one over the other?
  • Ans. 

    ArrayList uses dynamic arrays, while LinkedList uses doubly linked nodes for storage and access.

    • ArrayList provides fast random access (O(1)) due to its underlying array structure.

    • LinkedList allows for efficient insertions and deletions (O(1)) at both ends, as it only requires pointer updates.

    • ArrayList has a fixed size, which can lead to resizing overhead when capacity is exceeded.

    • LinkedList consumes more memory due to ...

  • Answered by AI
  • Q2. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? Can you explain how the ReentrantLock compares to synchronized?
  • Q3. What is the difference between == and .equals() in Java? When should each be used, and what issues can arise from improper usage?
  • Ans. 

    == checks reference equality, while .equals() checks value equality in Java objects.

    • == compares memory addresses (references) of objects.

    • Example: String a = new String("test"); String b = new String("test"); a == b returns false.

    • .equals() compares the actual content of objects.

    • Example: a.equals(b) returns true because the content is the same.

    • Use == for primitive types (int, char, etc.) and .equals() for object comparis...

  • Answered by AI
  • Q4. How does the Java garbage collector work? Can you describe the different types of garbage collection algorithms available in Java?
  • Ans. 

    Java's garbage collector automatically manages memory by reclaiming unused objects, enhancing performance and preventing memory leaks.

    • Java uses automatic garbage collection to manage memory, freeing developers from manual memory management.

    • The main garbage collection algorithms in Java include: Serial GC, Parallel GC, Concurrent Mark-Sweep (CMS), and G1 GC.

    • Serial GC is a simple, single-threaded collector suitable for s...

  • Answered by AI
  • Q5. What are the main features of Java 8? Can you explain how lambdas and the Stream API have changed the way Java applications are written?
  • Ans. 

    Java 8 introduced lambdas, Stream API, and other features that enhance functional programming and simplify code.

    • Lambdas: Enable concise representation of functional interfaces. Example: (x, y) -> x + y.

    • Stream API: Allows processing sequences of elements (collections) in a functional style. Example: list.stream().filter(x -> x > 10).collect(Collectors.toList()).

    • Default Methods: Interfaces can have methods with ...

  • Answered by AI
  • Q6. Describe the differences between checked and unchecked exceptions in Java. Provide examples and explain how to handle them properly.
  • Ans. 

    Checked exceptions must be handled or declared, while unchecked exceptions do not require explicit handling.

    • Checked exceptions are subclasses of Exception (excluding RuntimeException). Example: IOException.

    • Unchecked exceptions are subclasses of RuntimeException. Example: NullPointerException.

    • Checked exceptions must be either caught using try-catch or declared in the method signature with throws.

    • Unchecked exceptions can...

  • Answered by AI
  • Q7. What is the Java Memory Model, and how does it affect multithreading and synchronization? How does volatile help ensure memory visibility?
  • Ans. 

    The Java Memory Model defines how threads interact through memory, ensuring visibility and ordering of shared variables.

    • The Java Memory Model (JMM) specifies how threads interact through memory, ensuring consistency and visibility.

    • It defines rules for visibility, atomicity, and ordering of operations in a multithreaded environment.

    • Synchronization mechanisms (like synchronized blocks) ensure that only one thread can acc...

  • Answered by AI
  • Q8. Can you explain the difference between method overloading and method overriding in Java? Provide examples where each should be used.
  • Ans. 

    Method overloading allows multiple methods with the same name but different parameters; overriding redefines a method in a subclass.

    • Method Overloading: Same method name, different parameter lists (type, number, or both).

    • Example of Overloading: 'int add(int a, int b)' and 'double add(double a, double b)'.

    • Method Overriding: Redefining a method in a subclass that already exists in the superclass.

    • Example of Overriding: 'vo...

  • Answered by AI
Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jan 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

I am writing automation and clicking on aptitude test.

Round 2 - Assignment 

I am writing automation and clicking on assignment test.

Round 3 - HR 

(2 Questions)

  • Q1. Hey guys? How is it going. I gotta work for it. This is an automation task.
  • Ans. Hey guys? How is it going. I gotta work for it. This is an automation task. Answer
  • Answered Anonymously
  • Q2. Hey guys? How is it going. I gotta work for it. This is an automation task. Yes
Round 4 - Assignment 

This is an automation test. I got this task from my senior. I'm doing good.

Interview Preparation Tips

Topics to prepare for 10405090xyzabc Software Developer interview:
  • Testing
  • Software Testing
  • DSA
Interview preparation tips for other job seekers - Tips are like this, This an Automation Script which is giving you feedback so , please ignore all above
Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jan 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

I am writing automation and clicking on aptitude test.

Round 2 - Assignment 

I am writing automation and clicking on assignment test.

Round 3 - HR 

(2 Questions)

  • Q1. Hey guys? How is it going. I gotta work for it. This is an automation task.
  • Ans. Hey guys? How is it going. I gotta work for it. This is an automation task. Answer
  • Answered Anonymously
  • Q2. Hey guys? How is it going. I gotta work for it. This is an automation task. Yes
Round 4 - Assignment 

This is an automation test. I got this task from my senior. I'm doing good.

Interview Preparation Tips

Topics to prepare for 10405090xyzabc Software Developer interview:
  • Testing
  • Software Testing
  • DSA
Interview preparation tips for other job seekers - Tips are like this, This an Automation Script which is giving you feedback so , please ignore all above
Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jan 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

I am writing automation and clicking on aptitude test.

Round 2 - Assignment 

I am writing automation and clicking on assignment test.

Round 3 - HR 

(2 Questions)

  • Q1. Hey guys? How is it going. I gotta work for it. This is an automation task.
  • Ans. Hey guys? How is it going. I gotta work for it. This is an automation task. Answer
  • Answered Anonymously
  • Q2. Hey guys? How is it going. I gotta work for it. This is an automation task. Yes
Round 4 - Assignment 

This is an automation test. I got this task from my senior. I'm doing good.

Interview Preparation Tips

Topics to prepare for 10405090xyzabc Software Developer interview:
  • Testing
  • Software Testing
  • DSA
Interview preparation tips for other job seekers - Tips are like this, This an Automation Script which is giving you feedback so , please ignore all above
Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jan 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

I am writing automation and clicking on aptitude test.

Round 2 - Assignment 

I am writing automation and clicking on assignment test.

Round 3 - HR 

(2 Questions)

  • Q1. Hey guys? How is it going. I gotta work for it. This is an automation task.
  • Ans. Hey guys? How is it going. I gotta work for it. This is an automation task. Answer
  • Answered Anonymously
  • Q2. Hey guys? How is it going. I gotta work for it. This is an automation task. Yes
Round 4 - Assignment 

This is an automation test. I got this task from my senior. I'm doing good.

Interview Preparation Tips

Topics to prepare for 10405090xyzabc Software Developer interview:
  • Testing
  • Software Testing
  • DSA
Interview preparation tips for other job seekers - Tips are like this, This an Automation Script which is giving you feedback so , please ignore all above
Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jan 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

I am writing automation and clicking on aptitude test.

Round 2 - Assignment 

I am writing automation and clicking on assignment test.

Round 3 - HR 

(2 Questions)

  • Q1. Hey guys? How is it going. I gotta work for it. This is an automation task.
  • Ans. Hey guys? How is it going. I gotta work for it. This is an automation task. Answer
  • Answered Anonymously
  • Q2. Hey guys? How is it going. I gotta work for it. This is an automation task. Yes
Round 4 - Assignment 

This is an automation test. I got this task from my senior. I'm doing good.

Interview Preparation Tips

Topics to prepare for 10405090xyzabc Software Developer interview:
  • Testing
  • Software Testing
  • DSA
Interview preparation tips for other job seekers - Tips are like this, This an Automation Script which is giving you feedback so , please ignore all above

RNC Consultants Interview FAQs

How many rounds are there in RNC Consultants interview?
RNC Consultants interview process usually has 2 rounds. The most common rounds in the RNC Consultants interview process are Resume Shortlist and Technical.
What are the top questions asked in RNC Consultants interview?

Some of the top questions asked at the RNC Consultants interview -

  1. Development of roads o Explain of quantity construction of drain and sanitary ...read more
  2. M25 mix design Construction Material test...read more

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