Structwel Interview Questions and Answers

HT cables are high tension cables used for transmitting high voltage electricity, while LT cables are low tension cables used for distributing low voltage electricity.

• HT cables are used for transmitting electricity at high voltages, typically above 11kV.

• LT cables are used for distributing electricity at low voltages, typically below 1kV.

• HT cables have thicker insulation and are designed to withstand higher voltages.

• LT ...read more

Single Line Diagram (SLD) is a schematic representation of a power system showing all the electrical components and their connections.

• SLD shows the flow of electricity from the source to the loads in a simplified manner

• It includes all the major components like transformers, circuit breakers, switches, etc.

• Each component is represented by standardized symbols for easy understanding

• It helps in understanding the overall s...read more

P&ID shows detailed piping and instrumentation information, while PFD shows overall process flow.

• P&ID includes detailed information on piping, valves, instruments, and equipment in a process system.

• PFD provides an overview of the entire process flow, showing major equipment and key control loops.

• P&ID is used for detailed design, construction, and maintenance of a process system.

• PFD is used for understanding the overall...read more

I have extensive experience in architectural design, project management, and collaboration with multidisciplinary teams.

• Led a team of architects in designing a sustainable office building, focusing on energy efficiency and modern aesthetics.

• Managed a $5 million residential project from concept to completion, ensuring adherence to timelines and budgets.

• Collaborated with engineers and contractors to integrate innovative ...read more

Low delta T syndrome occurs when the temperature difference between supply and return air in HVAC systems is lower than expected.

• Indicates inefficiency in the HVAC system's cooling or heating performance.

• Commonly seen in chilled water systems where the temperature difference is less than 10°F.

• Can lead to increased energy consumption and reduced comfort levels.

• Causes may include oversized equipment, poor airflow, or inc...read more

Seamless pipes are made without joints, while ERW pipes are welded along the seam, affecting strength and applications.

• Seamless pipes are manufactured from a solid round steel billet, which is heated and pushed or pulled over a form until the pipe is shaped.

• ERW (Electric Resistance Welded) pipes are made by rolling metal strips and welding them along the seam using electric resistance.

• Seamless pipes are generally stron...read more

Ducts are classified into pressure categories based on their application and operating conditions as per SMACNA standards.

• Class 1: Low-pressure ducts (up to 3 inches w.g.) - Used in residential systems.

• Class 2: Medium-pressure ducts (3 to 10 inches w.g.) - Common in commercial applications.

• Class 3: High-pressure ducts (10 to 20 inches w.g.) - Typically found in industrial settings.

• Class 4: Extra high-pressure ducts (ab...read more