Bahwan Engineering Interview Questions and Answers

Q1. Riggeng work refinery oil plant power plant raging work my good experience
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Q2. Rigging work loading unloading election
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Q3. My experience 12 years
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Q4. My good experience working in Rigging
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Q5. BEC is good company PC is all member stop very good working
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Q1. What is the superheat , how to calculate superheat
Ans. 
Superheat is the temperature increase of a vapor above its boiling point at a given pressure.
• Superheat is important in HVAC systems to ensure proper refrigerant flow and system efficiency.

• It is calculated by subtracting the boiling point temperature of the refrigerant at a given pressure from the actual temperature of the refrigerant.

• The ideal superheat value varies depending on the type of refrigerant and the specific...read more
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Q2. What is sup cooling What is function of expension value
Ans. 
Subcooling is the process of cooling a liquid refrigerant below its saturation temperature.
• Subcooling is achieved by removing heat from the refrigerant after it has been condensed.

• It ensures that the refrigerant is in a liquid state before it enters the expansion valve.

• The expansion valve reduces the pressure of the refrigerant and controls the flow rate into the evaporator.

• This causes the refrigerant to evaporate and ...read more
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Q3. Why are increased head pressure
Ans. 
Increased head pressure in HVAC systems can be caused by various factors.
• Dirty condenser coils

• Blocked or restricted airflow

• Refrigerant overcharge

• Malfunctioning expansion valve

• Faulty compressor

• Ambient temperature increase

• Clogged filter drier

• Low refrigerant charge

• Kinked or blocked refrigerant lines
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Aptitude test is purely based on individual professional.

Q1. .1 Code and standard related to the faculty. 2.Ndt procedures. 3.Difference between PQR and WpS 4.PWHT Procedures for P22. 5.F no ,P No. and Group No. Etc.
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Q1. Tell me about reverse alignment
Ans. 
Reverse alignment is the process of aligning two machines in opposite directions.
• Reverse alignment is used when two machines are required to operate in opposite directions.

• It involves aligning the machines in a way that the coupling faces are parallel and at the same height.

• Reverse alignment is important to prevent damage to the machines and ensure efficient operation.

• It requires specialized tools and techniques such a...read more
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