Technology Engineer Interview Questions and Answers

This is a technical interview question about PCB, amplitude, and power supply.

• PCB stands for Printed Circuit Board and is used to mechanically support and electrically connect electronic components.

• Amplitude is the measure of the maximum deviation of a signal from its average value.

• Types of power supply include AC (alternating current) and DC (direct current) power supplies.

• Other types of power supplies include linear power supplies, switching power supplies, and regulated po...read more

Mass balance for a distillation tower and measuring catalyst degradation in a technology engineering interview

• For mass balance in a distillation tower, calculate the total mass entering and leaving the tower to ensure conservation of mass

• Measure catalyst degradation by analyzing changes in catalyst activity, selectivity, and physical properties over time

• Use techniques like X-ray diffraction, surface area analysis, and chemical analysis to monitor catalyst degradation

• Regularly...read more

Pump & turbine performance can be measured using various parameters such as flow rate, head, efficiency, and power consumption.

• Measure flow rate using flow meters

• Measure head using pressure gauges

• Calculate efficiency by comparing input power to output power

• Monitor power consumption using energy meters

• Perform performance tests under different operating conditions

Java programming is a high-level, object-oriented programming language used for developing applications and software.

• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• It is known for its simplicity, readability, and versatility in creating various types of applications

• Java is used in web development, mobile app development, enterprise software, and more

Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.

• Allows for code reusability and promotes the concept of hierarchy

• Derived class can access the properties and methods of the base class

• Types of inheritance include single, multiple, multilevel, hierarchical, and hybrid

• Example: Class 'Car' can inherit from class 'Vehicle' to access common vehicle properties

Lambdas in Java are anonymous functions that allow you to pass behavior as an argument to a method.

• Lambdas are used to implement functional interfaces with a single abstract method.

• They provide a concise way to write code by reducing boilerplate.

• Syntax: (parameters) -> expression or statement block

• Example: (int a, int b) -> a + b

Multithreading in Java allows multiple threads to execute concurrently, improving performance and responsiveness.

• Multithreading is achieved by extending the Thread class or implementing the Runnable interface.

• Threads share the same memory space but have their own program counter, stack, and local variables.

• Java provides synchronized keyword and locks to prevent data corruption in multithreaded environments.

• Example: Creating a new thread - Thread thread = new Thread(new MyRunn...read more