Worley Senior Hvac Engineer Interview Questions and Answers

Various pressure tests are conducted on valves including hydrostatic test, pneumatic test, and cryogenic test.

• Hydrostatic test is conducted by filling the valve with water and pressurizing it to a specified pressure to check for leaks.

• Pneumatic test involves using air or nitrogen to pressurize the valve and check for leaks or defects.

• Cryogenic test is performed at low temperatures to ensure the valve can withstand extr...read more

Safety considerations in designing piping systems are crucial for preventing accidents and ensuring the integrity of the system.

• Ensuring proper material selection to withstand the intended pressure and temperature conditions

• Implementing proper support and restraint systems to prevent excessive stress and vibration

• Incorporating adequate access points for maintenance and inspection

• Following relevant codes and standards s...read more

I am a Piping Engineer with strong technical skills and attention to detail. My strengths include problem-solving, teamwork, and communication.

• I have a Bachelor's degree in Mechanical Engineering with a specialization in Piping Design.

• I have experience working on various projects, including designing and analyzing piping systems for industrial plants.

• I am proficient in using software such as AutoCAD and CAESAR II for p...read more

First angle projection is a method of creating engineering drawings where the object is projected onto a plane in front of it.

• In first angle projection, the object is placed in the first quadrant of the viewing plane.

• The object is projected onto the plane from the perspective of the object looking towards the plane.

• Commonly used in Europe and Asia, while third angle projection is more common in the United States.

• Helps ...read more

The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted.

• Energy can be transferred between systems or converted from one form to another.

• The total energy in a closed system remains constant.

• Mathematically expressed as: ΔU = Q - W, where ΔU is the change in internal energy, Q is heat added to the system, and W is work done by the system.

• Example: When a gas is compr...read more

Entropy is a measure of disorder or randomness in a system.

• Entropy is a thermodynamic property that increases with the amount of disorder in a system.

• It is a measure of the unavailable energy in a closed thermodynamic system that is also usually considered to be a measure of the system's disorder.

• Entropy can be thought of as a measure of the number of specific ways in which a system may be arranged, often interpreted a...read more