10+ Executive Mechanical Maintenance Interview Questions and Answers

Various tools used for troubleshooting of a pump include pressure gauges, flow meters, vibration analyzers, and infrared thermometers.

• Pressure gauges to measure the pressure of the fluid being pumped

• Flow meters to measure the flow rate of the fluid

• Vibration analyzers to detect any abnormal vibrations in the pump

• Infrared thermometers to measure the temperature of the pump and its components

• Visual inspection tools such as borescopes and endoscopes to inspect the internal compon...read more

The allowable noise and vibration limit for a fan depends on various factors such as the type of fan, its location, and the surrounding environment.

• The allowable noise and vibration limit for a fan is typically specified by the manufacturer in the fan's technical specifications.

• The limit may also be regulated by local or national noise ordinances and regulations.

• Factors such as the type of fan, its location, and the surrounding environment can affect the allowable noise and v...read more

The question covers bearings types and nomenclature, steam pot and its function, and problems with compression and coating machines.

• Bearings types include ball bearings, roller bearings, and plain bearings.

• Nomenclature for bearings includes the bearing type, size, and series.

• Steam pot is used to generate steam for various industrial processes.

• Compression machine problems may include issues with the motor, belts, or valves.

• Coating machine problems may include issues with the s...read more

RVA can be done through Fishbone method by identifying the possible causes of the problem and categorizing them into branches.

• Identify the problem and write it at the head of the fishbone diagram

• Identify the major categories of possible causes and draw branches for each category

• Identify the subcategories of each branch and draw smaller branches for each subcategory

• Brainstorm and list all possible causes under each subcategory

• Analyze the causes and identify the root cause of t...read more

Water balance diagram is a schematic representation of water flow and usage in a system.

• It shows the sources of water, its distribution, and the amount of water used in different processes.

• It helps in identifying areas of water loss and optimizing water usage.

• It is commonly used in industries such as power plants, chemical plants, and water treatment plants.

• Example: A water balance diagram for a power plant would show the sources of water (such as a river or lake), the amount...read more

Pant safety refers to the measures taken to ensure the safety of individuals while wearing pants.

• Pant safety includes features such as reinforced knees, fire-resistant materials, and reflective strips for visibility.

• Proper fit and sizing of pants is important to prevent tripping or snagging hazards.

• Pants should be free from loose or dangling parts that can get caught in machinery.

• Regular inspection and maintenance of pants is necessary to identify and address any wear or tear...read more

Hydraulic pump is a mechanical device that converts mechanical power into hydraulic energy by generating flow or pressure in a hydraulic system.

• Converts mechanical power into hydraulic energy

• Generates flow or pressure in a hydraulic system

• Commonly used in heavy machinery like excavators and cranes

PRV stands for Pressure Relief Valve. It is a type of energy that helps to release excess pressure in a system to prevent damage.

• PRV is a safety device used to protect equipment from overpressure.

• It automatically opens to release pressure when it exceeds a certain set point.

• PRVs are commonly used in steam systems, water heaters, and pressure vessels.

• They help prevent explosions and other dangerous situations caused by excessive pressure.

Gears are used to transmit power and motion between rotating shafts. There are various types of gears used in different applications.

• Spur gears are the most common type and are used in machinery and vehicles.

• Helical gears are used for high-speed applications and provide smoother operation.

• Bevel gears are used to transmit power between shafts that are not parallel.

• Worm gears are used for high reduction ratios and are commonly found in heavy machinery.

• Planetary gears are used i...read more