IHBL Interview Questions, Process, and Tips

Asme & api codes, pipeline engineering,PMs, operations & maintenance

Q1. Basic o&m question from pump
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Q2. Tell me about yourself
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Q3. Pipeline design basis
Ans. 
Pipeline design basis includes factors like fluid properties, operating conditions, material selection, and safety regulations.
• Consider fluid properties such as temperature, pressure, flow rate, and corrosiveness

• Select appropriate materials based on factors like strength, corrosion resistance, and cost

• Design for safety by considering factors like pressure containment, leak detection, and emergency shutdown systems
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Q1. Whats is NPSH and how its relevant for Cavitation?
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NPSH stands for Net Positive Suction Head. It is a measure of the pressure available at the suction port of a pump to prevent cavitation.
• NPSH is important for preventing cavitation in pumps by ensuring that the pressure at the suction port is sufficient to avoid the formation of vapor bubbles.

• It is calculated by subtracting the vapor pressure of the fluid from the total suction head of the pump.

• If the NPSH available is...read more
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Q2. How identify the seal failure? And what the procedure for seal failure?
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Seal failure can be identified through visual inspection, pressure testing, and monitoring of leakage. The procedure for seal failure involves replacing the faulty seal and ensuring proper installation.
• Visual inspection for signs of wear, damage, or misalignment

• Pressure testing to check for leaks under pressure

• Monitoring of leakage to detect any increase in fluid loss

• Replace the faulty seal with a new one

• Ensure proper ...read more
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Q3. How co- related Flow and Power in centrifugal Pump?
Ans. 
Flow and power in a centrifugal pump are related through the pump's performance curve.
• Flow rate and power consumption are directly related in a centrifugal pump.

• As flow rate increases, the power required to maintain that flow rate also increases.

• The pump's performance curve shows the relationship between flow rate and power consumption.

• Efficiency of the pump also plays a role in the relationship between flow and power.
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Q4. How the coating repaire?
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Coatings can be repaired by identifying the damaged area, preparing the surface, applying the new coating, and curing it properly.
• Identify the damaged area by inspecting the coating for cracks, peeling, or discoloration.

• Prepare the surface by cleaning it thoroughly and removing any old coating or debris.

• Apply the new coating using the appropriate method such as spraying, brushing, or dipping.

• Cure the coating properly b...read more
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