HITSS PLASTICO PAINTING Purchase Officer Interview Questions and Answers

All technical skills and your previous experience as well as field experience.

Q1. Why you come in HPL?
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Q1. Plant tank farm and utility
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Q2. Tell about PSA cycle
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Q1. About your present work
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Q2. Piling railway mis design etc
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Q1. About your scope
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Q1. What is Hydrostatic pressure?
Ans. 
Hydrostatic pressure is the pressure exerted by a fluid at equilibrium due to the force of gravity.
• Hydrostatic pressure increases with depth in a fluid

• It is calculated as the product of the fluid density, acceleration due to gravity, and depth

• Hydrostatic pressure is important in various fields such as fluid mechanics, engineering, and geology
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Q2. Calculate the quantity of air in room?
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The quantity of air in a room can be calculated by multiplying the room's length, width, and height.
• Calculate the volume of the room by multiplying its length, width, and height

• Use the formula: Volume = Length x Width x Height

• Convert the volume to the quantity of air by considering the density of air (typically around 1.225 kg/m^3)
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Q1. What is cavitation in centrifugal pump? How do you mean by NPSH?
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Cavitation is the formation of vapor bubbles in a centrifugal pump due to low pressure. NPSH stands for Net Positive Suction Head.
• Cavitation occurs when the pressure at the pump inlet drops below the vapor pressure of the liquid, causing the formation of vapor bubbles.

• These vapor bubbles collapse when they reach higher pressure areas, leading to damage to the pump impeller and reduced pump performance.

• Cavitation can be...read more
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Q2. What is surging? How do you manage lubrication in different rotating equipment?
Ans. 
Surging is a phenomenon in rotating equipment where the flow rate becomes unstable.
• Surging occurs when the flow rate through a rotating equipment fluctuates due to changes in operating conditions.

• It can lead to reduced efficiency, increased wear and tear, and potential damage to the equipment.

• To manage lubrication in different rotating equipment, it is important to monitor and control the flow rate, viscosity, and temp...read more
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Q1. Asked the working of different excel formula?
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Q2. Questions Regarding Computer Skills?
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Q3. Works I was handling in my previous profile?
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Q1. Pvc is used for sewer and cpvc is used for water supply
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Q2. What do you know difference between pvc and cpvc
Ans. 
PVC is a type of plastic commonly used for pipes and fittings, while CPVC is a variation of PVC with added chlorine for higher temperature resistance.
• PVC stands for polyvinyl chloride, while CPVC stands for chlorinated polyvinyl chloride.

• CPVC is more suitable for hot water applications due to its higher temperature resistance compared to PVC.

• CPVC is typically used in residential and commercial plumbing systems, while P...read more
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Q3. Why r u join to plumbing
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Q4. What the purpose of non return ball
Ans. 
Non return ball is used to prevent backflow of fluid in a system.
• Prevents backflow of fluid in a system

• Commonly used in plumbing systems

• Helps maintain pressure and flow direction in pipelines
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Q5. What is the Dwc pipe use and why
Ans. 
Dwc pipe is used for drainage and waste disposal in buildings.
• Dwc pipe stands for Double Wall Corrugated pipe

• It is commonly used in buildings for drainage and waste disposal

• Dwc pipes are lightweight, durable, and easy to install

• They have a smooth inner wall to ensure efficient flow of waste water

• Dwc pipes are resistant to corrosion and chemicals, making them ideal for underground installations
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