Sulzer Interview Questions and Answers

Boxing and unboxing in C# are processes for converting value types to reference types and vice versa.

• Boxing: Converting a value type (e.g., int) to an object type.

• Example: int num = 123; object obj = num; // Boxing

• Unboxing: Converting an object type back to a value type.

• Example: int num2 = (int)obj; // Unboxing

• Boxing involves memory allocation on the heap, while unboxing retrieves the value from the heap.

A simple program to print star pattern in C#

• Use nested loops to print the desired pattern

• Start with a small pattern and then expand it to more complex ones

• Experiment with different loop structures to create various patterns

Stored procedures and functions differ in their usage and capabilities. ACID properties ensure data integrity, normalization reduces redundancy.

• Stored procedures are precompiled SQL queries that can perform multiple operations, while functions are reusable code blocks that return a single value.

• Stored procedures can have input and output parameters, while functions can only return a single value.

• ACID properties (Atomic...read more

Solid principles are a set of design principles for writing maintainable and scalable code.

• Single Responsibility Principle: A class should have only one reason to change. For example, a class that handles user authentication should not also be responsible for sending emails.

• Open/Closed Principle: Software entities should be open for extension but closed for modification. For example, using interfaces to allow for new i...read more

A confined space is an area that is not designed for continuous occupancy, has limited entry and exit points, and may have hazardous conditions.

• Confined spaces have limited entry and exit points, making it difficult to escape in case of emergency

• These spaces are not designed for continuous occupancy, such as tanks, silos, tunnels, and sewers

• Confined spaces may contain hazardous conditions like lack of oxygen, toxic gas...read more

A permit to work system is a formal written system used to control high-risk work activities.

• Ensures that all necessary precautions are taken before work begins

• Specifies the work to be done, the hazards involved, and the precautions to be taken

• Requires authorization from a competent person before work can commence

The count of vernier refers to the number of vernier scales present in a measurement tool.

• Vernier calipers typically have one vernier scale for measuring length.

• Micrometers may have multiple vernier scales for different units of measurement.

• Counting the number of vernier scales can help determine the precision of the measurement tool.