100+ fresher Interview Questions and Answers

The unit of electric current is Ampere (A).

• Electric current is the flow of electric charge.

• Ampere is named after the French physicist Andre-Marie Ampere.

• One Ampere is defined as the flow of one Coulomb of charge per second.

PT-100 is a type of temperature sensor that uses platinum to measure temperature accurately.

• PT-100 stands for 'Platinum Resistance Temperature Detector' with a resistance of 100 ohms at 0°C.

• It operates on the principle that the resistance of platinum changes with temperature.

• Commonly used in industrial applications for precise temperature measurement.

• PT-100 sensors can be found in HVAC systems, food processing, and laboratory equipment.

• They offer high accuracy and stability o...read more

Answering questions on primary and foreign keys, truncate command, and reversing a string.

• Primary key is a unique identifier for a record in a table, while foreign key is a reference to a primary key in another table.

• Truncate command deletes all data from a table, but keeps the structure intact.

• To reverse a string, you can use a loop to iterate through the characters and append them in reverse order to a new string.

The unit of magnetic flux is the Weber (Wb).

• The unit of magnetic flux is named after the German physicist Wilhelm Eduard Weber.

• One Weber is equal to one Tesla multiplied by one square meter.

• The Weber is a derived unit in the International System of Units (SI).

The formula for simple interest is I = P * R * T

• Simple interest is calculated using the formula I = P * R * T

• I represents the interest amount, P is the principal amount, R is the rate of interest, and T is the time period

• For example, if the principal amount is $1000, the rate of interest is 5%, and the time period is 2 years, the simple interest would be $100

Validating data and managing projects are crucial for ensuring accuracy and efficiency in project work.

• Data validation ensures accuracy; for example, checking patient records for errors in a healthcare project.

• Effective management involves setting clear goals; for instance, using project management tools like Trello to track progress.

• Regular audits of data help maintain integrity; for example, conducting monthly reviews of project data to identify discrepancies.

• Collaboration ...read more

The formula of (a+b)2 is a^2 + 2ab + b^2.

• The formula is derived using the distributive property of multiplication over addition.

• It can also be expanded as (a+b)(a+b) or a(a+b) + b(a+b).

• The result is a quadratic expression with three terms.

I have knowledge of computer systems and programming languages to troubleshoot technical issues.

• Proficient in programming languages such as Java, Python, and C++

• Familiar with operating systems such as Windows, Linux, and macOS

• Able to diagnose and resolve technical issues related to hardware and software

• Experience with debugging and testing code

• Knowledge of database management systems and SQL

• Ability to learn and adapt to new technologies quickly

I have basic knowledge in software development and programming languages.

• Proficient in programming languages such as Java, Python, and C++

• Familiar with software development methodologies like Agile and Waterfall

• Knowledgeable in database management systems like MySQL and Oracle

• Experience in using software development tools like Git and Eclipse

Namespace in Python is a way to organize and manage variables, functions, and classes. Tuples are immutable sequences of elements. Slicing is a way to extract a subset of elements from a sequence.

• Namespace in Python helps avoid naming conflicts by organizing variables, functions, and classes.

• Tuples are immutable and ordered collections of elements, defined using parentheses. Example: my_tuple = (1, 2, 3)

• Mutable objects can be changed after creation, while immutable objects ca...read more

Call by value passes a copy of the value while reference by value passes a copy of the reference to the value.

• Call by value passes the value of a variable to a function, while reference by value passes the reference to the variable.

• In call by value, any changes made to the parameter inside the function do not affect the original variable outside the function.

• In reference by value, any changes made to the parameter inside the function affect the original variable outside the f...read more

Yes, I have a laptop and WiFi connection.

• I have a laptop with a reliable internet connection.

• I can access the internet through WiFi.

• Having a laptop and WiFi allows me to work remotely and stay connected.

• I can use online resources and tools for learning and professional development.

Garbage collection is an automatic memory management process. OOPS principles are encapsulation, inheritance, and polymorphism.

• Garbage collection is the process of automatically freeing up memory that is no longer being used by a program.

• It helps prevent memory leaks and makes programming easier by removing the need for manual memory management.

• OOPS principles are encapsulation, inheritance, and polymorphism.

• Encapsulation is the practice of hiding the implementation details o...read more

Blockchain is a decentralized, immutable ledger that can provide solutions to web2 problems.

• Blockchain can provide secure and transparent transactions without the need for intermediaries.

• It can prevent data tampering and ensure data privacy.

• Smart contracts can automate processes and reduce costs.

• Blockchain can enable decentralized applications and platforms.

• Examples include Bitcoin, Ethereum, and supply chain management systems.

HPLC is a technique used to separate, identify, and quantify components in a mixture.

• HPLC uses a liquid mobile phase and a stationary phase to separate components based on their chemical properties.

• It is commonly used in pharmaceuticals, food and beverage, environmental analysis, and forensic science.

• HPLC can detect and quantify very small amounts of compounds, making it a highly sensitive analytical technique.

• Different types of HPLC include reverse-phase, normal-phase, ion-e...read more

Program to check prime numbers and SQL query for prime numbers.

• Use a loop to check if a number is divisible by any number less than itself.

• In SQL, use a subquery to check if a number is divisible by any number less than itself.

• To optimize, only check divisibility up to the square root of the number.

You should use a programming language that is appropriate for the project requirements and your skill level.

• Consider the project requirements and choose a language that is suitable for the task.

• Choose a language that you are comfortable with and have experience in.

• If the project involves web development, consider using HTML, CSS, and JavaScript.

• If the project involves data analysis, consider using Python or R.

• If the project involves mobile app development, consider using Java...read more

There are various types of gas chromatography gas chamber pipes available.

• The types of gas chromatography gas chamber pipes depend on the application and the type of gas being analyzed.

• Some common types include fused silica capillary columns, packed columns, and micropacked columns.

• The choice of column depends on factors such as the sample size, the type of analyte, and the desired separation efficiency.

• The gas chamber pipes may also vary in terms of their dimensions, coating...read more

The name of resistant in unit is Ohm.

• Ohm is the unit of electrical resistance.

• It is named after Georg Simon Ohm, a German physicist.

• The symbol for Ohm is Ω.

• It is used to measure the resistance of a material or component in an electrical circuit.

DCM and DEM are modules in AUTOSAR for diagnostic communication and error management.

• DCM (Diagnostic Communication Manager) module handles communication between the diagnostic tester and the vehicle's ECUs.

• DCM provides services for diagnostic communication such as reading and clearing diagnostic trouble codes (DTCs), accessing ECU data, and performing diagnostic routines.

• DEM (Diagnostic Event Manager) module manages and reports diagnostic events and errors within the vehicle'...read more

Reversing a six-digit number using C programming language.

• Take input of a six-digit number from the user.

• Extract each digit of the number using modulus operator.

• Multiply the extracted digit with its respective place value and add it to the reversed number.

• Repeat the above step for all digits.

• Print the reversed number.

Query to retrieve full name of employees from employee table.

• Use SELECT statement to retrieve data from employee table.

• Concatenate first name and last name columns using CONCAT function.

• Use AS keyword to give an alias name to the concatenated column.

Exception handling blocks include try, catch, finally. final is a keyword for declaring constants, finally is a block always executed. Static methods cannot be overridden.

• Exception handling blocks: try, catch, finally

• final keyword for constants, finally block always executed

• Static methods cannot be overridden

The tagline of ICICI bank is 'Hum Hai Na, Khyal Apka' which translates to 'We are there for you, your trust'.

• The tagline emphasizes the bank's commitment to being there for their customers.

• It conveys a sense of trust and reliability.

• The tagline reflects the bank's customer-centric approach.

• It aims to build a strong relationship with customers based on trust and support.

• The tagline is in Hindi, connecting with the Indian audience and showcasing the bank's local roots.

A solution is a homogeneous mixture of two or more substances, where one substance is dissolved in another.

• A solution is made up of a solute (the substance being dissolved) and a solvent (the substance doing the dissolving).

• The solute particles are evenly distributed throughout the solvent, resulting in a homogeneous mixture.

• Examples of solutions include saltwater (salt dissolved in water), sugar water (sugar dissolved in water), and air (oxygen, nitrogen, and other gases dis...read more

The capital of Bihar is Patna.

• The capital city of Bihar is Patna.

• Patna is the largest city in Bihar.

• Patna is located on the southern bank of the Ganges River.

• It is an important center for trade, education, and administration in the state.

The composition of medicine for diabetes varies depending on the type and severity of diabetes.

• Medicines for diabetes include insulin, metformin, sulfonylureas, DPP-4 inhibitors, GLP-1 receptor agonists, SGLT2 inhibitors, and more.

• Glycomet 500 contains metformin, which helps lower blood sugar levels by reducing glucose production in the liver and improving insulin sensitivity.

• Gluconorm G1 contains glimepiride and metformin, which work together to lower blood sugar levels by i...read more