L&T Technology Services Senior Engineer Interview Questions, Process, and Tips

Eliminate duplicate lines from a text file.

Q1. Basic Stress Strain diagrams
Add your answer
Q2. Welding symbols, GD&T symbols
Add your answer
Q3. Previous projects and work experience
Ans. 
I have worked on various projects in the past, including developing software solutions for a healthcare company and implementing a new system for a manufacturing company.
• Developed software solutions for a healthcare company, including a patient management system and a telemedicine platform

• Implemented a new system for a manufacturing company to streamline their production process and improve efficiency

• Collaborated with ...read more
Answered by AI
Add your answer

Q1. Material properties,
Add your answer
Q2. Bending Stress calculations
Add your answer
Q3. Power train selection Process
Ans. 
The power train selection process involves evaluating various factors to choose the most suitable power train for a vehicle.
• Consider the vehicle's intended use and performance requirements

• Evaluate the available power train options and their capabilities

• Assess factors such as fuel efficiency, emissions, and cost

• Test and validate the chosen power train to ensure it meets performance and safety standards
Answered by AI
Add your answer

Q1. Write C program to multiply two matrices
Ans. 
Program to multiply two matrices in C
• Declare two matrices and initialize them with values

• Use nested loops to iterate through rows and columns of the matrices

• Perform multiplication and store the result in a new matrix

• Print the resulting matrix
Answered by AI
Add your answer
Q2. Write C program to reverse the string without using built in function
Ans. 
Program to reverse a string without using built-in functions in C
• Create a function to reverse the string by swapping characters from start to end

• Use two pointers, one pointing to the start of the string and the other pointing to the end

• Swap the characters at the two pointers and move them towards each other until they meet in the middle
Answered by AI
Add your answer
Q3. What are the different types of storage classes
Ans. 
The different types of storage classes in C programming are auto, register, static, and extern.
• Auto storage class is the default storage class for all local variables.

• Register storage class is used to define local variables that should be stored in a register instead of RAM.

• Static storage class allows a variable to retain its value between function calls.

• Extern storage class is used to give a reference of a global vari
Answered by AI
Add your answer
Q4. Difference between structure and union
Ans. 
Structure is a user-defined data type that allows storing different types of data in a single variable, while union is a data type that allows storing only one type of data at a time.
• Structure allows storing different types of data in a single variable, while union allows storing only one type of data at a time.

• In a structure, each member has its own memory location, while in a union, all members share the same memory ...read more
Answered by AI
Add your answer
Q5. Write a c program to toggle the 3rd bit position
Ans. 
Toggle the 3rd bit position in a given number using bitwise operators in C.
• Use bitwise OR operator with 0x04 to toggle the 3rd bit position.

• Example: num ^= (1 << 2) will toggle the 3rd bit position in 'num'.
Answered by AI
Add your answer
Q6. What is memory leak
Ans. 
Memory leak is a situation where a program fails to release memory it has allocated, leading to a gradual loss of available memory.
• Memory leaks occur when a program allocates memory but does not free it after use.

• This can lead to a gradual loss of available memory, eventually causing the program or system to crash.

• Common causes of memory leaks include improper management of dynamic memory allocation and circular refere...read more
Answered by AI
Add your answer
Q7. What is mean by Dangling pointer
Ans. 
A dangling pointer is a pointer that points to a memory location that has been deallocated, leading to undefined behavior.
• Dangling pointers can occur when memory is freed but the pointer is not set to NULL.

• Accessing a dangling pointer can result in crashes or unexpected behavior.

• Example: int *ptr = new int; delete ptr; // ptr is now a dangling pointer
Answered by AI
Add your answer
Q8. Determine the output for logic code on pointers
Ans. 
The question involves determining the output for logic code on pointers.
• Pointer arithmetic can be used to access elements in an array.

• Pointers can be dereferenced to access the value they point to.

• Pointers can be used to pass variables by reference.
Answered by AI
Add your answer
Q9. C program on linked list
Ans. 
Implement a C program using linked list
• Use struct to define the linked list node

• Implement functions for insertion, deletion, and traversal

• Handle edge cases like empty list or deleting the last node
Answered by AI
Add your answer
Q10. Convert little endian to big endian
Ans. 
To convert little endian to big endian, reverse the order of bytes in the data.
• Reverse the order of bytes in the data

• For example, if you have the little endian value 0x12345678, in big endian it would be 0x78563412
Answered by AI
Add your answer
Q11. Basic Theory questions in C
Add your answer
Q12. Project Discussion
Add your answer

Q1. HR related questions
Add your answer

Q1. Interviewer was good gave time for answers. Mostly asked on whatever was mentioned in resume and C basics.
Add your answer

Q1. Intro, Salary discussion
Add your answer

Q1. Why you want to join? Are you willing to relocate? CAD question?
Add your answer
Q2. For a change in industry
Add your answer

Q1. Stages on NPD Past projects Technical fundamentals
Ans. 
New Product Development (NPD) involves multiple stages including ideation, design, development, testing, and launch.
• Idea generation and screening

• Concept development and testing

• Design and engineering

• Prototype development and testing

• Commercialization and launch
Answered by AI
Add your answer

Q1. Explain past experience
Ans. 
I have over 10 years of experience in cybersecurity, including roles in threat detection, incident response, and security architecture.
• Experience in threat detection and analysis

• Proficiency in incident response and handling security incidents

• Knowledge of security architecture design and implementation

• Familiarity with security tools and technologies such as SIEM, IDS/IPS, and endpoint protection

• Strong understanding of c...read more
Answered by AI
Add your answer
Q2. Technical questions that are related to job description
Add your answer