Nasense Labs Interview Questions and Answers

QA stands for Quality Assurance.

• QA is a process of ensuring that products or services meet the desired quality standards.

• It involves monitoring and evaluating the entire production process.

• QA helps to identify and correct any defects or errors in the product or service.

• It also involves creating and implementing quality control procedures.

• Examples of QA include testing software for bugs, inspecting products for defects,

Bearings are used to reduce friction between two moving parts. There are different types of bearings for different applications.

• Bearings reduce friction and wear between two moving parts

• They support radial and axial loads

• Types of bearings include ball bearings, roller bearings, and plain bearings

• Ball bearings are used in high-speed applications

• Roller bearings are used in heavy-duty applications

• Plain bearings are used i

Mechanical seals are used to prevent leakage of fluids in rotating equipment such as pumps and compressors.

• Mechanical seals are used to prevent leakage of fluids in rotating equipment

• They consist of two main components - a stationary part and a rotating part

• The stationary part is fixed to the pump or compressor housing, while the rotating part is attached to the shaft

• The two parts are held together by a spring and a se...read more

Alignment of rotator equipment and pump, motor is crucial for efficient operation and preventing damage.

• Use precision measuring tools like dial indicators and laser alignment systems

• Ensure proper baseplate installation and leveling

• Check for soft foot and correct it if present

• Follow manufacturer's specifications and tolerances

• Perform alignment checks regularly to prevent wear and tear

• Examples: aligning a centrifugal pum...read more

Preventive maintenance involves regular inspections, cleaning, lubrication, and replacement of parts to ensure equipment reliability.

• Create a maintenance schedule based on manufacturer recommendations

• Perform regular inspections to identify any signs of wear or damage

• Clean equipment regularly to remove dirt, dust, and debris

• Lubricate moving parts to reduce friction and prevent excessive wear

• Replace worn or damaged parts...read more

Lubrication is essential for equipment and instrument maintenance. The type of lubricant used depends on the equipment and its operating conditions.

• Lubrication reduces friction and wear on moving parts

• Different types of lubricants include oil, grease, and dry lubricants

• The type of lubricant used depends on the equipment's operating conditions, such as temperature and pressure

• Over-lubrication can be just as harmful as u...read more

Measuring systems in mechanical engineering are used to accurately measure physical quantities such as length, force, pressure, and temperature.

• Measuring systems can be analog or digital.

• Analog measuring systems use a scale and pointer to indicate the measured value.

• Digital measuring systems use electronic sensors to convert physical quantities into digital signals.

• Common types of measuring systems include micrometers,...read more