10+ Palvi Raj Construction Interview Questions and Answers

Pigs for cleaning pipes in oil & gas industry are selected based on size, material, and design compatibility with the pipeline.

• Consider the size of the pig to ensure it fits the diameter of the pipeline

• Choose a pig made of materials compatible with the substances being transported in the pipeline

• Select a pig design that suits the cleaning requirements of the pipeline, such as brush pigs for removing debris

Shut off pressure is the pressure at which a valve or regulator stops the flow of fluid or gas.

• It is the pressure at which a valve or regulator closes to prevent further flow.

• It is important to know the shut off pressure to ensure proper functioning of the system.

• For example, in a water supply system, the shut off pressure is the pressure at which the valve stops the flow of water.

• In a gas regulator, the shut off pressure is the pressure at which the regulator stops the flow ...read more

ASME Sec 8 Div 1 is for designing pressure vessels for general applications while Div 2 is for designing pressure vessels for specific applications.

• ASME Sec 8 Div 1 is based on design by rule approach while Div 2 is based on design by analysis approach.

• Div 1 has more conservative design rules while Div 2 allows for more flexibility in design.

• Div 2 requires more detailed analysis and testing than Div 1.

• Div 2 is used for designing pressure vessels for nuclear applications, whil...read more

There are several types of safety valves used in mechanical systems.

• Safety valves are used to prevent overpressure in mechanical systems.

• The most common types of safety valves include spring-loaded safety valves, pilot-operated safety valves, and balanced safety valves.

• Spring-loaded safety valves are the simplest type and are commonly used in steam systems.

• Pilot-operated safety valves use a pilot valve to control the opening and closing of the main valve.

• Balanced safety valve...read more

Nozzle orientation is decided based on process requirements, equipment layout, piping stress analysis, and safety considerations.

• Consider process requirements such as flow direction and pressure drop

• Align with equipment layout to ensure proper connection and accessibility

• Analyze piping stress to avoid excessive loads on the nozzle

• Ensure safety by avoiding interference with other equipment or structures

• Consult with process engineers, equipment vendors, and piping stress analys...read more

Accrual concept, BRS, and depreciation are important accounting concepts for financial management.

• Accrual concept recognizes revenues and expenses when they are incurred, regardless of when cash is exchanged.

• BRS stands for Bank Reconciliation Statement, used to ensure the accuracy of a company's bank account balance.

• Depreciation is the allocation of the cost of a tangible asset over its useful life to reflect its gradual wear and tear.

• Accrual concept example: Recording revenu...read more

Vessel design parameters include size, shape, material, and intended use.

• Size: determines capacity and stability

• Shape: affects hydrodynamics and maneuverability

• Material: impacts strength, weight, and corrosion resistance

• Intended use: dictates features such as cargo hold, propulsion, and navigation systems

The rack width is set based on the size and layout of the piping components to ensure proper spacing and accessibility for maintenance.

• Consider the size and layout of piping components to determine the required width for the rack

• Ensure there is enough space for maintenance activities such as valve operation and equipment replacement

• Take into account any safety regulations or guidelines regarding spacing between components

• Consult with other team members or stakeholders to ensu...read more

Extensive hands-on experience in managing indirect procurement activities including sourcing, vendor management, and contract negotiation.

• Managed end-to-end procurement process for indirect categories such as IT services, marketing, and facilities management

• Negotiated contracts with vendors to ensure cost savings and quality standards are met

• Implemented strategic sourcing initiatives to optimize supplier relationships and drive efficiency

• Utilized procurement tools and systems...read more

BOQ is computed by breaking down construction project into items, quantifying each item, and pricing them.

• Break down the construction project into items based on drawings and specifications

• Quantify each item by taking off quantities from drawings or using estimating software

• Price each item by obtaining rates from suppliers or using historical data

• Sum up the total cost of all items to get the Bill of Quantities

Challenges faced in plant include equipment breakdowns, supply chain disruptions, regulatory compliance, and workforce safety.

• Equipment breakdowns can lead to production delays and increased maintenance costs.

• Supply chain disruptions can impact raw material availability and production schedules.

• Regulatory compliance requires constant monitoring and updates to ensure adherence to industry standards.

• Workforce safety concerns include training, hazard identification, and emergenc...read more

The minimum spool length between a tee and an elbow is determined by the required clearance for installation and maintenance purposes.

• The minimum spool length is typically determined by the manufacturer's recommendations or industry standards.

• Factors such as pipe size, material, and operating conditions can also influence the minimum spool length.

• For example, a common recommendation is to have a minimum spool length of 2 times the pipe diameter between a tee and an elbow.

Yes, my iqama is transferable.

• Yes, my iqama is transferable as per the regulations in Saudi Arabia.

• I have successfully transferred my iqama in the past when changing employers.

• The process for transferring iqama usually involves the current employer initiating the transfer and the new employer completing the necessary paperwork.

Desalters are used in oil refineries to remove salt and other impurities from crude oil before further processing.

• Desalters help prevent corrosion in downstream equipment by removing salt and other impurities from crude oil.

• They improve the efficiency of refining processes by reducing fouling and scaling in equipment.

• Desalters can use various methods such as electrostatic coalescence or chemical demulsification to separate salt from crude oil.

• Examples of desalters include ele...read more