Vrv Asia Pacific Mechanical Engg. Design Interview Questions and Answers

Equipment handled in past

Q1. Working principal of Plate heat exchanger
Ans. 
Plate heat exchanger works on the principle of transferring heat between two fluids through metal plates.
• Consists of multiple plates with small gaps in between for fluid flow

• Hot and cold fluids flow on opposite sides of the plates

• Heat is transferred through the plates from hot fluid to cold fluid

• Efficient in transferring heat due to large surface area of plates

• Commonly used in HVAC systems, refrigeration, and industria
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Q2. NPSH of Pump and its importance while pump selection
Ans. 
NPSH of Pump is Net Positive Suction Head, crucial for preventing cavitation in pumps during operation.
• NPSH is the measure of a pump's ability to prevent cavitation by maintaining a sufficient pressure at the suction inlet.

• It is important to consider NPSH when selecting a pump to ensure it can operate effectively without cavitation.

• Factors affecting NPSH include pump design, fluid properties, and operating conditions.

• N...read more
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Q1. FRP GRP line fitting and joint
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Q2. Centrifugal pump operation and maintenance
Ans. 
Centrifugal pumps are used to move fluids through a piping system. Proper operation and maintenance are crucial for optimal performance.
• Ensure the pump is properly primed before starting

• Regularly check and replace worn or damaged impellers and seals

• Monitor and maintain proper fluid levels and pressure

• Regularly inspect and clean the pump and surrounding area

• Follow manufacturer's recommended maintenance schedule

• Train per...read more
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Q1. What you know about boiler
Ans. 
A boiler is a closed vessel used to generate steam or hot water for heating or power generation.
• Boilers can be fueled by various sources such as natural gas, oil, coal, or biomass.

• Boilers can be classified into different types such as fire-tube, water-tube, and electric boilers.

• Boilers require regular maintenance to ensure efficient and safe operation.

• Boilers are commonly used in industries such as power generation, ch...read more
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Q2. What you know about company
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