Expertise Contracting Company Project Engineer Mechanical Interview Questions and Answers

Boiler efficiency can be calculated by measuring the heat input and heat output of the boiler.

• Calculate the heat input by measuring the fuel flow rate, fuel calorific value, and fuel consumption.

• Calculate the heat output by measuring the steam flow rate and steam enthalpy.

• Direct efficiency = (Heat output / Heat input) * 100%

• Indirect efficiency = Direct efficiency * Boiler efficiency of other components (like economizer

The monthly maintenance cost of my section is approximately $10,000.

• The monthly maintenance cost includes expenses for spare parts, labor, equipment rental, and utilities.

• Regular maintenance tasks such as lubrication, inspections, and repairs contribute to the overall cost.

• Cost may vary depending on the size of the section, age of equipment, and frequency of maintenance activities.

I want develop my skills so,you can hired me to this job

1 year experience in oil and gas

Yes, I have experience in 3D modeling and design using software like SolidWorks and AutoCAD.

• I have used SolidWorks extensively for creating 3D models of mechanical components and assemblies.

• I am proficient in creating detailed drawings and simulations using 3D modeling software.

• I have experience in designing complex geometries and assemblies in 3D.

• I have also used AutoCAD for 2D drafting and converting 2D drawings into

Yes, oil and gas are natural resources that are extracted from the earth for various purposes such as fuel, heating, and electricity generation.

• Oil and gas are fossil fuels formed from the remains of plants and animals that lived millions of years ago.

• They are extracted from underground reservoirs using drilling techniques.

• Oil is used for transportation, heating, and manufacturing of various products.

• Natural gas is use...read more

Common materials for shafts include steel, stainless steel, aluminum, and titanium.

• Steel is a popular choice for its strength and durability

• Stainless steel is corrosion resistant

• Aluminum is lightweight and has good thermal conductivity

• Titanium is strong and lightweight, often used in aerospace applications

Active Directory is a Microsoft service that manages network resources and user accounts.

• Active Directory is used to authenticate and authorize users and computers in a network.

• It allows administrators to manage and control access to network resources.

• Active Directory stores information about users, groups, computers, and other network objects.

• It provides a hierarchical structure for organizing network resources.

• Active...read more

The default protocol used in directory services is LDAP.

• LDAP stands for Lightweight Directory Access Protocol.

• It is used to access and manage directory information.

• LDAP is commonly used in enterprise environments for authentication and authorization.

• Examples of directory services that use LDAP include Microsoft Active Directory and OpenLDAP.

Piping refers to the system of pipes used to transport fluids or gases from one location to another.

• Piping is used in a variety of industries, including oil and gas, chemical, and power generation.

• It can be made from a variety of materials, including steel, copper, and plastic.

• Piping systems can be complex and require careful design and installation to ensure proper flow and pressure.

• Maintenance and inspection of pipin...read more

Piping stress is the stress induced in a piping system due to various loads and forces.

• Piping stress can be caused by thermal expansion, pressure, weight, vibration, and seismic activity.

• It can lead to deformation, leakage, and failure of the piping system.

• Piping stress analysis is done to ensure the safe and reliable operation of the piping system.

• Factors such as material properties, pipe routing, and support design a...read more

Piping materials are the materials used for constructing pipes that transport fluids or gases.

• Piping materials can be metallic or non-metallic.

• Common metallic piping materials include carbon steel, stainless steel, copper, and aluminum.

• Non-metallic piping materials include PVC, CPVC, fiberglass, and HDPE.

• The choice of piping material depends on factors such as the type of fluid or gas being transported, temperature, pr