QNFS Interview Questions and Answers

Priming is the process of filling the pump and suction pipe with liquid to remove air and create a vacuum.

• Priming is necessary to ensure the pump can function properly.

• It involves filling the pump and suction pipe with liquid to remove air and create a vacuum.

• This helps to prevent cavitation and damage to the pump.

• Priming can be done manually or automatically depending on the type of pump.

• Examples of pumps that require...read more

I would prioritize quality and report the defect to my higher authority.

• Explain the importance of maintaining quality standards

• Discuss the potential consequences of neglecting the defect

• Offer alternative solutions to address the defect

• Emphasize the importance of transparency and honesty in reporting findings

I have extensive experience in QC&NDT inspection and possess the necessary skills and qualifications for the position.

• I have a strong background in quality control and non-destructive testing techniques.

• I am certified in various inspection methods such as visual inspection, ultrasonic testing, and magnetic particle testing.

• I have successfully conducted inspections on a wide range of materials and components, ensuring c...read more

Transformer losses refer to the energy losses that occur during the operation of a transformer.

• Transformer losses include copper losses and iron losses.

• Copper losses occur due to the resistance of the transformer windings.

• Iron losses, also known as core losses, occur due to hysteresis and eddy currents in the transformer core.

• Copper losses can be minimized by using larger conductor sizes and reducing the resistance of ...read more

Efficiency of transformer is the ratio of output power to input power.

• Efficiency is affected by factors such as core losses, winding resistance, and load impedance.

• Efficiency can be improved by using high-quality materials, proper design, and regular maintenance.

• Efficiency is expressed as a percentage and can range from 50% to 99% depending on the transformer type and application.

Non-sparking equipment and lights are used in hazardous environments to prevent explosions.

• Non-sparking tools are made of materials that do not create sparks when struck or rubbed against each other.

• Non-sparking lights use LED technology and are enclosed in a housing that prevents sparks from escaping.

• These techniques are commonly used in industries such as oil and gas, chemical, and mining.

• Examples of non-sparking too...read more