10+ Neubrain Solutions Interview Questions and Answers

There are three main types of solar power plants: photovoltaic, concentrated solar power, and solar thermal.

• Photovoltaic solar power plants convert sunlight directly into electricity using solar panels.

• Concentrated solar power plants use mirrors or lenses to concentrate sunlight onto a small area, which generates heat to produce electricity.

• Solar thermal power plants use the sun's heat to generate steam, which drives a turbine to produce electricity.

Solar panels work by converting sunlight into electricity through photovoltaic cells.

• Solar panels absorb sunlight using photovoltaic cells

• The photovoltaic cells convert sunlight into direct current (DC) electricity

• An inverter then converts the DC electricity into alternating current (AC) electricity for use in homes or businesses

• Excess electricity can be stored in batteries or fed back into the grid

• Solar panels require regular maintenance to ensure optimal performance

Insecure deserialization is a vulnerability where an attacker can manipulate serialized data to execute arbitrary code.

• Insecure deserialization occurs when untrusted data is deserialized without proper validation.

• Attackers can exploit this vulnerability to execute malicious code, escalate privileges, or tamper with data.

• Examples include modifying serialized data to change user permissions or inject malware into the application.

Cache Deceptions involve manipulating cache contents, while Cache Poisoning involves injecting malicious data into cache.

• Cache Deceptions involve tricking the cache into storing false data to be used later for malicious purposes.

• Cache Poisoning involves injecting malicious data into the cache to be used by attackers.

• Examples of Cache Deceptions include manipulating cache eviction policies to store false data, while examples of Cache Poisoning include injecting fake DNS record...read more

Event loop is a mechanism in programming that allows for asynchronous execution of code by continuously checking for and handling events.

• Event loop is commonly used in JavaScript to handle asynchronous operations.

• It allows for non-blocking I/O operations by delegating tasks to the operating system.

• Event loop continuously checks the event queue for new events and processes them in a sequential manner.

• Example: In Node.js, the event loop allows for handling multiple concurrent c...read more

Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during the compilation phase.

• Hoisting applies to both variable and function declarations.

• Variable declarations are hoisted but not their initializations.

• Function declarations are fully hoisted, including their definitions.

• Hoisting can lead to unexpected behavior if not understood properly.

A power transformer is a device used to transfer electrical energy between two or more circuits through electromagnetic induction.

• Power transformers are used to step up or step down voltage levels in electrical power transmission and distribution systems.

• They consist of primary and secondary windings wound around a core made of magnetic material such as iron.

• Examples of power transformers include distribution transformers, power transformers, and instrument transformers.

• They ...read more

A lifting plan procedure is a systematic approach to ensure safe lifting and handling of heavy loads.

• Identify the load weight and center of gravity

• Select appropriate lifting equipment and rigging

• Ensure proper communication between all involved parties

• Conduct a pre-lift safety meeting

• Perform a trial lift to ensure stability and balance

• Execute the lift with caution and constant communication

• Monitor the lift and make adjustments as necessary

• Complete a post-lift inspection and de...read more