Pragathi Solutions Interview Questions and Answers

Motors are rated in KW because they consume power, while transformers and generators are rated in KVA because they produce power.

• Motors convert electrical energy into mechanical energy, so they consume power and are rated in KW.

• Transformers and generators produce electrical energy, so they are rated in KVA based on their apparent power.

• KVA takes into account both the real power (KW) and the reactive power (KVAR) produc...read more

The type of motor used in ceiling fans is an induction motor.

• Ceiling fans typically use single-phase induction motors.

• These motors are designed to provide a constant speed and are efficient in converting electrical energy into mechanical energy.

• The motor consists of a stator and a rotor, with the stator being the stationary part and the rotor being the rotating part.

• The stator contains windings that create a rotating m...read more

A thermal power plant generates electricity by converting heat energy into mechanical energy.

• Thermal power plants use fossil fuels or nuclear energy to heat water and produce steam.

• The steam drives a turbine, which is connected to a generator that produces electricity.

• The heat source can be coal, natural gas, oil, or nuclear reactions.

• The steam is condensed back into water and recycled in a closed-loop system.

• Thermal p...read more

A program to generate a geometric progression (GP).

• Take the first term, common ratio and number of terms as input.

• Use a loop to calculate each term of the GP.

• Print the generated GP as output.

A program to print factorial using recursion

• Define a function to calculate factorial recursively

• Base case: if the number is 0 or 1, return 1

• Recursive case: multiply the number with factorial of (number - 1)

• Print the factorial of a given number

Logic to reverse a string without using string functions

• Iterate through the string from the last character to the first

• Create a new string and append each character to it in reverse order

A C code that prints out the elements of an array of strings.

• Declare an array of strings

• Use a loop to iterate through the array

• Print out each element

The probability of rain in Chennai today depends on various factors such as season, weather conditions, and location.

• The probability can be estimated by analyzing the current weather patterns and historical data.

• Factors such as humidity, temperature, and wind speed can affect the probability of rain.

• Local weather forecasts and satellite imagery can also provide insights into the likelihood of rain.

• The probability of ra...read more

It is impossible to accurately predict the probability of India winning the next Cricket World Cup.

• Sports events are unpredictable and depend on various factors such as team performance, weather conditions, injuries, etc.

• Past performance of the team and individual players can be considered, but it does not guarantee future success.

• Other teams participating in the tournament also play a significant role in determining t...read more

Java is an object-oriented language while C is a procedural language.

• Java is platform-independent while C is platform-dependent.

• Java has automatic garbage collection while C requires manual memory management.

• Java has built-in support for multithreading while C requires external libraries.

• Java has a larger standard library compared to C.

• Java is more secure than C due to its strong type checking and exception handling.

• C ...read more

Pointers are variables that store memory addresses of other variables in programming languages.

• Pointers allow direct access and manipulation of memory locations.

• They are commonly used in programming languages like C and C++.

• Pointers can be used to pass variables by reference, allowing modifications to the original value.

• They can also be used to dynamically allocate memory.

• Example: int* ptr; // declares a pointer to an

In 5 years, I see myself as a senior software engineer leading a team of developers.

• Leading a team of developers

• Working on complex projects

• Continuing to learn and grow in my role

• Contributing to the success of the company