Sr Infrastructure Project Engineer Interview Questions and Answers

The allowable tolerance on tiles depends on the type of tile and the installation method.

• Allowable tolerance for ceramic tiles is typically +/- 1/16 inch

• For larger format tiles, the allowable tolerance may be greater

• Tolerance for natural stone tiles can vary based on the type of stone and finish

• Consult manufacturer guidelines for specific tolerance recommendations

I am not comfortable disclosing the salary of my previous company.

• It is not appropriate to discuss previous salary in an interview setting.

• Focus on discussing the skills and experiences that make you a strong candidate for the position.

• Salary expectations can be discussed during the negotiation phase if an offer is extended.

My expected salary is negotiable and dependent on the overall compensation package offered.

• My expected salary is based on my experience, skills, and the responsibilities of the role.

• I am open to discussing the salary range for this position during the interview process.

• I am looking for a competitive salary that reflects the market value for my skills and experience.

Chiller efficiency is a measure of how well a chiller unit is able to cool a space while using the least amount of energy.

• Chiller efficiency is typically measured by the Coefficient of Performance (COP), which is the ratio of cooling output to energy input.

• Regular maintenance and cleaning of chiller components can improve efficiency.

• Upgrading to a more energy-efficient chiller model can also increase efficiency.

• Proper ...read more

Water cooled systems are generally more efficient than air cooled systems due to higher heat transfer capabilities.

• Water has higher heat transfer capabilities compared to air

• Water cooled systems can maintain more consistent temperatures

• Water cooled systems are typically used in high performance applications such as data centers and industrial machinery

Duct velocity can be improved by increasing the fan speed or reducing the duct size.

• Increase the fan speed to increase the air velocity in the duct.

• Reduce the duct size to increase the air velocity.

• Use dampers or adjustable louvers to control and optimize the airflow.

• Ensure proper sealing of duct joints to minimize air leakage.

• Consider using smooth and straight ducts to reduce friction and improve airflow.

• Regularly cle...read more

The chiller system uses various types of gases for cooling purposes.

• Common types of gases used in chiller systems include R-134a, R-410A, and ammonia.

• R-134a is a hydrofluorocarbon (HFC) refrigerant commonly used in air conditioning systems.

• R-410A is a blend of hydrofluorocarbons used as a replacement for older refrigerants.

• Ammonia (NH3) is often used in industrial chiller systems due to its high cooling capacity.

• Other ...read more

The VRF system capacity is determined based on the area's cooling and heating load requirements.

• Calculate the total cooling load and heating load for the area

• Consider factors such as insulation, windows, occupancy, and equipment

• Select VRF system capacity based on the calculated load requirements

• Consult with HVAC professionals for accurate sizing