B M Construction Co Senior Engineer Mechanical Interview Questions and Answers

Soil compactor drum thickness is an important factor for compaction efficiency and durability.

• The drum thickness of a soil compactor is typically between 0.5 to 1 inch.

• Thicker drums are more durable and can withstand heavier loads.

• The material of the drum also affects its thickness and durability, with steel drums being thicker than plastic ones.

• Regular maintenance and inspection of the drum thickness is important to e...read more

Preventive maintenance of excavator involves regular inspections, lubrication, and replacement of worn parts to ensure optimal performance and longevity.

• Regularly inspecting the excavator for signs of wear and tear

• Lubricating moving parts to prevent friction and reduce wear

• Replacing worn out parts such as filters, belts, and hoses

• Checking fluid levels and topping up as needed

• Cleaning the excavator to prevent buildup of...read more

PMS stands for Piping Material Specification. One class for LPG system piping is Class 150.

• PMS is a document that specifies the materials, standards, and requirements for piping systems.

• Class 150 is a common class for LPG system piping, indicating the pressure rating of the piping components.

• PMS helps ensure that the piping system is designed and constructed according to industry standards and safety regulations.

Hydrotest procedure involves filling the equipment with water and pressurizing it to check for leaks or structural integrity.

• Prepare the equipment by ensuring it is clean and free of debris

• Fill the equipment with water and remove air pockets

• Gradually increase the pressure to the specified level

• Hold the pressure for a specified duration to check for leaks

• Monitor for any leaks or structural failures

• Release the pressure a...read more

Current CTC is $90,000 and expected CTC is $110,000

• Current CTC: $90,000

• Expected CTC: $110,000

• Open to negotiation based on benefits and growth opportunities

Welding WPS procedure involves creating a detailed document outlining the welding process to ensure quality and consistency.

• WPS stands for Welding Procedure Specification

• It includes details such as welding parameters, materials, preheat requirements, etc.

• WPS is essential for ensuring weld quality and meeting code requirements

• Examples of WPS documents include AWS D1.1 for structural steel welding

Alignment of rotating and static equipment is crucial for smooth operation and efficiency.

• Proper alignment ensures minimal vibration and wear on components

• Use precision tools like laser alignment systems for accurate alignment

• Regularly monitor and adjust alignment to prevent issues

• Improper alignment can lead to equipment failure and costly repairs

• Examples: aligning a motor shaft with a pump shaft in a water treatment p...read more

Chimney flue cane segment erection procedure involves assembling and installing individual segments of the chimney flue.

• Prepare the work area by ensuring it is clean and free of debris.

• Assemble the cane segments according to the manufacturer's instructions.

• Use appropriate tools and equipment to lift and position the segments into place.

• Secure the segments together using bolts or other fastening methods.

• Inspect the comp...read more

Alignment methods are techniques used to ensure proper positioning and orientation of mechanical components.

• Common alignment methods include laser alignment, dial indicator alignment, and straight edge alignment.

• Laser alignment uses a laser beam to measure and adjust the alignment of components.

• Dial indicator alignment uses a dial gauge to measure the alignment of components.

• Straight edge alignment involves using a str...read more