50+ fresher Interview Questions and Answers for Freshers

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.

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).

Gas chromatography is a separation technique based on the adsorption of gases or vapours of a liquid by an adsorbent.

• Gas chromatography separates and analyzes volatile compounds in a sample mixture.

• It involves a stationary phase (adsorbent) and a mobile phase (carrier gas).

• The sample is injected into the column and the compounds are separated based on their affinity to the stationary phase.

• The separated compounds are detected by a detector and a chromatogram is generated.

• Gas ...read more

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

Factors that can be considered as risks in insurance are determined based on their likelihood of occurrence and potential impact on the insured party.

• Evaluate the probability of the risk occurring

• Assess the potential impact of the risk on the insured party

• Consider the financial implications of the risk for the insurance company

• Analyze historical data and trends to identify common risks in a particular industry or region

• Consult with experts or actuaries to quantify and assess ...read more

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.

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

My preferred programming language is Python. I have strong leadership skills.

• I prefer Python as my programming language because of its simplicity and versatility.

• I have experience in leading a team during my college project, where I successfully coordinated tasks and ensured timely completion.

• I believe in effective communication, delegation, and motivating team members to achieve common goals.

• I have also attended leadership workshops and seminars to enhance my leadership skil...read more

The unit of magnetic field is called Tesla (T).

• Tesla is named after the famous inventor and physicist Nikola Tesla.

• It is used to measure the strength of magnetic fields.

• One Tesla is equal to one Weber per square meter.

• Commonly used prefixes for Tesla are milliTesla (mT) and microTesla (µT).

Access modifiers in Python are keywords used to restrict access to class members.

• Python has three access modifiers: public, protected, and private.

• Public members can be accessed from anywhere outside the class.

• Protected members can be accessed within the class and its subclasses.

• Private members can only be accessed within the class.

• Public members are denoted by no underscore, protected members by a single underscore, and private members by double underscore.

• Example: class MyC...read more

Smart contracts can automate investment processes and ensure secure and transparent transactions, leading to higher returns.

• Smart contracts can eliminate intermediaries and reduce transaction costs.

• They can automate investment processes, such as dividend payments and asset transfers.

• Smart contracts can ensure secure and transparent transactions, reducing the risk of fraud and errors.

• They can also enable new investment opportunities, such as decentralized finance (DeFi) platfo...read more

Program to check if a number is prime or not

• A prime number is only divisible by 1 and itself

• Loop through numbers from 2 to n-1 and check if n is divisible by any of them

• If n is divisible by any number, it is not prime

• If n is not divisible by any number, it is prime

Drawing a curve requires understanding of its shape and using appropriate tools and techniques.

• Choose the appropriate tool for the type of curve you want to draw (e.g. pencil, pen, brush, etc.)

• Start with a light sketch of the curve to get the shape right

• Use reference images or objects to help guide the curve

• Practice using different techniques such as shading and blending to add depth and dimension to the curve

• Experiment with different styles and approaches to find what works ...read more

Program to swap two numbers

• Declare two variables and assign values to them

• Use a third variable to store the value of the first variable

• Assign the value of the second variable to the first variable

• Assign the value of the third variable to the second variable

Schedule H & H1 are lists of prescription drugs in India. Schedule G lists drugs that require special storage conditions. Anarex is a pain reliever.

• Schedule H contains drugs that require a prescription from a registered medical practitioner and cannot be sold without it.

• Schedule H1 contains antibiotics and requires a prescription from a registered medical practitioner with a red line on it.

• Schedule G lists drugs that require special storage conditions such as refrigeration.

• An...read more

Chromatography is a technique used to separate and analyze mixtures of chemicals based on their properties.

• Chromatography involves a stationary phase and a mobile phase.

• The sample is introduced into the mobile phase and travels through the stationary phase, separating the components based on their interactions with the stationary phase.

• Different types of chromatography include gas chromatography, liquid chromatography, and ion exchange chromatography.

• Chromatography is used in...read more

Class is a blueprint for creating objects. Objects are instances of a class that have their own unique properties and behaviors.

• A class is a template or blueprint for creating objects

• An object is an instance of a class with its own unique properties and behaviors

• Classes define the properties and methods that objects of that class will have

• Objects can interact with each other through their methods and properties

• Example: A class 'Car' can have properties like 'color', 'model', ...read more

A program to check if a given number is prime or not.

• Take input from user

• Check if the number is less than 2, then it is not a prime number

• Loop through numbers from 2 to n-1 and check if n is divisible by any of them

• If n is divisible by any number, then it is not a prime number

• If n is not divisible by any number, then it is a prime number

Claims are requests made by individuals or companies to an insurance company for payment of benefits or services covered under an insurance policy.

• Claims are typically submitted after a covered event or service has occurred.

• Insurance companies review claims to determine if they are valid and covered under the policy.

• Claims can be related to various types of insurance such as health, auto, property, or liability.

• Examples of claims include medical bills submitted to health insu...read more

A motor is a device that converts electrical energy into mechanical energy to produce motion.

• Motors are commonly used in various applications such as electric vehicles, industrial machinery, and household appliances.

• They work based on the principle of electromagnetic induction.

• There are different types of motors, including DC motors, AC motors, and stepper motors.

• Examples of motors include the engine in a car, the fan in a refrigerator, and the motor in a washing machine.

Collections refer to the process of gathering and organizing items or objects into a group.

• Collections can include items such as books, art, antiques, coins, stamps, etc.

• People often collect items based on personal interest, hobby, or investment purposes.

• Collections can be displayed in museums, galleries, private homes, or online platforms.

• Some famous collections include the British Museum in London, the Louvre in Paris, and the Smithsonian in Washington, D.C.

Encapsulation is the process of hiding implementation details while abstraction is the process of hiding unnecessary details.

• Encapsulation is achieved through access modifiers like public, private, and protected.

• Abstraction is achieved through abstract classes and interfaces.

• Encapsulation protects the data from outside interference while abstraction focuses on the essential features of an object.

• Example of encapsulation: A class with private variables and public methods to ac...read more

Insurance is a financial protection plan that provides coverage against potential losses or damages.

• Insurance involves a contract between the insurer and the insured party.

• The insured pays a premium to the insurer in exchange for coverage against specified risks.

• Common types of insurance include health, life, auto, home, and travel insurance.

• Insurance helps individuals and businesses manage risks and protect themselves financially.

• Examples of insurance companies include State...read more

Credit control is the process of managing the credit extended to customers and ensuring timely payment.

• Credit control involves setting credit limits for customers based on their creditworthiness.

• It also includes monitoring customer payments and following up on overdue invoices.

• Credit control aims to minimize the risk of bad debts and improve cash flow for the company.

• Examples of credit control measures include sending payment reminders, imposing late fees, and restricting fur...read more

Stop loss treaty is a reinsurance agreement where the reinsurer agrees to cover losses above a certain threshold for the ceding company.

• Stop loss treaty is a type of reinsurance agreement.

• It sets a specific threshold for losses that the ceding company will cover on its own.

• The reinsurer agrees to cover losses above this threshold.

• It helps the ceding company limit its exposure to large losses.

• Example: If a ceding company has a stop loss treaty with a threshold of $1 million, t...read more

Object-Oriented Programming (OOP) is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

• OOP focuses on creating objects that interact with each other to solve a problem.

• It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation.

• For example, in a banking system, a 'BankAccount' class can have objects like 'SavingsAccount' and 'CheckingAccount' that inherit propert...read more

RAM and storage are two types of computer memory. RAM is volatile and used for temporary storage, while storage is non-volatile and used for long-term storage.

• RAM stands for Random Access Memory and is used for temporary storage of data and instructions

• Storage is non-volatile and used for long-term storage of data and files

• Types of RAM include DDR, DDR2, DDR3, and DDR4

• Types of storage include HDD, SSD, and flash drives

2-stroke engines have a power stroke every revolution, while 4-stroke engines have a power stroke every other revolution.

• 2-stroke engines have fewer moving parts and are lighter than 4-stroke engines.

• 2-stroke engines have a simpler design and are easier to maintain.

• 4-stroke engines are more fuel-efficient and produce less pollution than 2-stroke engines.

• Examples of 2-stroke engines include chainsaws and dirt bikes, while examples of 4-stroke engines include cars and lawnmower...read more

Customer service is the support and assistance provided to customers before, during, and after a purchase.

• Customer service involves addressing customer queries, complaints, and feedback.

• It is important to provide prompt and courteous service to ensure customer satisfaction.

• Examples of customer service include answering phone calls, responding to emails, and providing technical support.

• Good customer service can lead to customer loyalty and positive word-of-mouth marketing.

Resistance is the opposition to the flow of electric current in a circuit.

• Resistance is measured in ohms (Ω).

• It is caused by factors such as the material of the conductor, its length, and its cross-sectional area.

• Resistance can be calculated using Ohm's law: R = V/I, where R is resistance, V is voltage, and I is current.

• Higher resistance leads to lower current flow.

• Examples of resistors include light bulbs, heating elements, and electrical wires.

Time complexity refers to the amount of time taken by an algorithm to run as the input size increases.

• It is a measure of how efficient an algorithm is.

• It is usually expressed in Big O notation.

• The lower the time complexity, the better the algorithm.

• For example, an algorithm with O(n) time complexity will take longer as the input size increases compared to an algorithm with O(1) time complexity.

Static keyword is used to declare a variable or method that belongs to the class and not to the instance of the class.

• Static variables are shared by all instances of a class

• Static methods can be called without creating an instance of the class

• Static blocks are used to initialize static variables

• Static keyword can also be used to create nested classes

• Example: public static int count;

RAM and ROM are two types of computer memory. RAM is volatile and used for temporary storage, while ROM is non-volatile and used for permanent storage.

• RAM stands for Random Access Memory and is used for temporary storage of data and programs

• ROM stands for Read-Only Memory and is used for permanent storage of data and programs

• RAM is volatile, meaning it loses its contents when the computer is turned off

• ROM is non-volatile, meaning it retains its contents even when the computer...read more

Sorting code arranges elements in a specific order.

• Choose a sorting algorithm based on the requirements

• Iterate through the array and compare adjacent elements

• Swap the elements if they are not in the desired order

• Repeat until the array is sorted

SQL commands for database management

• SELECT - retrieve data from a table

• INSERT - insert data into a table

• UPDATE - update existing data in a table

• DELETE - delete data from a table

• CREATE - create a new table or database

• ALTER - modify the structure of a table

• DROP - delete a table or database

• JOIN - combine data from multiple tables

• GROUP BY - group data based on a specific column

• ORDER BY - sort data based on a specific column

An array in Python is a data structure that stores a collection of elements of the same data type.

• Arrays in Python can be created using the 'array' module or using list comprehension.

• Elements in an array are accessed using their index, starting from 0.

• Example: arr = [1, 2, 3, 4, 5]

• Example: import array; arr = array.array('i', [1, 2, 3, 4, 5])

Bitwise operators are used to perform operations on individual bits of binary numbers.

• Bitwise AND (&) - Sets a bit to 1 only if both bits are 1

• Bitwise OR (|) - Sets a bit to 1 if either bit is 1

• Bitwise XOR (^) - Sets a bit to 1 if the bits are different

• Bitwise NOT (~) - Flips the bits

• Bitwise left shift (<<) - Shifts the bits to the left by a certain number of positions

• Bitwise right shift (>>) - Shifts the bits to the right by a certain number of positions

Python programming is a high-level, interpreted, and general-purpose programming language known for its simplicity and readability.

• Python is widely used for web development, data analysis, artificial intelligence, scientific computing, and more.

• It emphasizes code readability and uses indentation for block delimiters.

• Python supports multiple programming paradigms, including procedural, object-oriented, and functional programming.

• Example: print('Hello, World!') is a simple Pyth...read more

List is an ordered collection of elements with duplicates allowed, while Set is an unordered collection of unique elements.

• List maintains the insertion order of elements, while Set does not guarantee any specific order.

• List allows duplicate elements, while Set does not allow duplicates.

• Examples: List - [1, 2, 3, 1], Set - {1, 2, 3}

An algorithm is a step-by-step procedure for solving a problem or accomplishing a task.

• An algorithm is a set of instructions that are followed to solve a problem.

• It is a sequence of well-defined steps that lead to the desired outcome.

• Algorithms can be represented using flowcharts, pseudocode, or programming languages.

• Examples of algorithms include sorting algorithms like bubble sort and searching algorithms like binary search.

HTML & CSS are the building blocks of web development, used to create and style web pages.

• HTML stands for HyperText Markup Language and is used to create the structure of a web page.

• CSS stands for Cascading Style Sheets and is used to style the elements created with HTML.

• HTML uses tags like <div>, <p>, <h1> to define the content and structure of a webpage.

• CSS uses properties like color, font-size, margin to style the elements defined in HTML.

• Both HTML and CSS are essential fo...read more