Executive Maintenance Engineer Interview Questions and Answers

Some common problems related to centrifugal pumps include cavitation, impeller damage, and seal leakage.

• Cavitation: This occurs when the pressure in the pump drops below the vapor pressure of the liquid, causing the formation of vapor bubbles. It can lead to erosion, noise, and reduced pump efficiency.

• Impeller damage: High-speed rotation of the impeller can cause erosion, corrosion, or imbalance, leading to reduced performance or complete failure.

• Seal leakage: The seals in ce...read more

Vacuum in a steam ejector is created through the principle of steam jet compression.

• Steam ejectors use high-pressure steam to create a low-pressure environment.

• The steam enters the ejector through a nozzle, creating a high-velocity jet.

• This high-velocity jet entrains and compresses the surrounding gas or vapor.

• The entrained gas or vapor is then condensed, resulting in a vacuum.

• The condensed gas or vapor is discharged, and the process continues.

• Example: In a steam power plant,...read more

Shaft run out can be resolved by identifying the root cause, performing corrective actions, and conducting regular maintenance.

• Identify the root cause of the shaft run out issue, such as misalignment, worn bearings, or bent shaft.

• Perform corrective actions based on the root cause, such as realigning the shaft, replacing worn bearings, or repairing the bent shaft.

• Conduct regular maintenance to prevent future occurrences of shaft run out, including lubrication, inspection, and ...read more

I am expecting a competitive package that reflects my skills, experience, and the responsibilities of the role.

• I am looking for a package that is in line with industry standards and the market rate for similar positions.

• I would like the package to include benefits such as health insurance, retirement plans, and paid time off.

• Considering my qualifications and the level of responsibility associated with the role, I expect a salary range of $X to $Y.

• I am open to negotiation and ...read more

I have handled a wide range of equipment in my role as an Executive Maintenance Engineer.

• Electrical equipment such as generators, transformers, and switchgear

• Mechanical equipment including pumps, compressors, and motors

• HVAC systems and controls

• Industrial machinery like conveyors, mixers, and packaging equipment

• Instrumentation devices such as pressure gauges, flow meters, and temperature sensors

• Computerized maintenance management systems (CMMS) for tracking and scheduling main...read more

Class of air refers to the classification of air based on its cleanliness and purity.

• Class of air is determined by the concentration of particles and microorganisms present in the air.

• There are different classes of air based on specific industry standards and requirements.

• Examples of air classes include Class 100, Class 10,000, and Class 100,000.

• Each class has defined limits for particle size and count, as well as microbial contamination.

• Cleanrooms and controlled environments...read more

1 Torr is equal to 0.9999998571428571 mm of Hg.

• 1 Torr is a unit of pressure equal to 1/760th of standard atmospheric pressure.

• mm of Hg is a unit of pressure commonly used in the medical field.

• The conversion factor between Torr and mm of Hg is approximately 0.9999998571428571.