Mathiyan Construction Interview Questions and Answers for Experienced

Types of compressors include reciprocating, rotary, centrifugal, and axial compressors.

• Reciprocating compressors use pistons to compress air or gas.

• Rotary compressors use rotating mechanisms such as screws or vanes.

• Centrifugal compressors use a rotating impeller to create centrifugal force.

• Axial compressors use rotating blades to compress air in a straight line.

• Examples include reciprocating air compressors, rotary scr...read more

The procedure to install centrifugal axial compressors involves proper planning, alignment, assembly, and testing.

• Ensure proper foundation is prepared to support the compressor

• Align the compressor with the piping system for proper flow

• Assemble the compressor components according to manufacturer's instructions

• Test the compressor for performance and efficiency before final installation

Types of pumps include centrifugal, positive displacement, and axial flow pumps.

• Centrifugal pumps: use centrifugal force to move fluid through the pump

• Positive displacement pumps: move fluid by trapping a fixed amount and forcing it through the discharge port

• Axial flow pumps: move fluid parallel to the pump shaft

A lifting plan procedure is a detailed plan outlining the steps and precautions to be taken when lifting heavy objects.

• Identify the weight and dimensions of the object to be lifted

• Determine the appropriate lifting equipment needed

• Assess the location and environment for any obstacles or hazards

• Assign roles and responsibilities to team members involved in the lift

• Communicate clearly and follow the plan step by step

• Conduc...read more

Pumps capacity refers to the maximum flow rate a pump can handle.

• Pumps capacity is typically measured in gallons per minute (GPM) or liters per minute (LPM).

• It is important to consider the required flow rate when selecting a pump for a specific application.

• Factors such as pump size, motor power, and system pressure affect the capacity of a pump.

• For example, a centrifugal pump may have a capacity of 500 GPM, while a dia

Methods statement for maintaining rotating and static equipment in mechanical engineering.

• Regular inspection and maintenance schedules for both rotating and static equipment

• Use of proper lubrication for rotating equipment to prevent wear and tear

• Checking alignment and balance of rotating equipment to ensure smooth operation

• Testing and calibrating static equipment for accuracy and efficiency

• Following manufacturer's guid...read more

LOD levels are used in BIM to specify the level of detail in a model, ranging from LOD 100 to LOD 500.

• LOD 100 - Conceptual design with basic massing and spatial relationships

• LOD 200 - Basic geometric elements with approximate quantities and sizes

• LOD 300 - Accurate model with specific system information and quantities

• LOD 400 - Fabrication level of detail with detailed elements and connections

• LOD 500 - As-built model wit

Workset in Revit is a way to organize and manage elements within a project.

• Worksets allow users to control visibility, editing permissions, and ownership of elements

• They can be used to divide a project into manageable sections for team collaboration

• Examples include creating worksets for different disciplines like architecture, structure, and MEP

BIM 360 is a cloud-based platform for construction project management, collaboration, and data sharing.

• BIM 360 allows for real-time collaboration among project teams

• It provides tools for document management, design coordination, and quality control

• Users can access project information from anywhere, at any time

Orifice std refers to standard orifice sizes used in engineering. Types of taps include flange taps, corner taps, and D and D/2 taps.

• Orifice std refers to standard sizes of orifices used in flow measurement

• Types of taps include flange taps, corner taps, and D and D/2 taps

• Flange taps are used for large pipes, corner taps for small pipes, and D and D/2 taps for general applications

Pressure gauge operating range refers to the minimum and maximum pressure values that the gauge can accurately measure.

• Pressure gauge operating range is typically specified by the manufacturer.

• It is important to ensure that the pressure being measured falls within the gauge's operating range to ensure accurate readings.

• For example, a pressure gauge with an operating range of 0-100 psi should not be used to measure pres

Straight length requirements for orifice flow element ensure accurate measurement by allowing flow to stabilize before reaching the element.

• Straight length requirements typically range from 10 to 44 pipe diameters upstream and 5 to 22 pipe diameters downstream of the orifice.

• These requirements help prevent flow disturbances and ensure accurate measurement of flow rate.

• For example, if the pipe diameter is 4 inches, the ...read more

Yes, I am able to fill measurement books provided by clients.

• I have experience in accurately recording measurements and quantities in measurement books.

• I am familiar with the format and requirements of measurement books provided by clients.

• I ensure all necessary details are included in the measurement book, such as date, location, description of work, measurements, and signatures.

• I am proficient in using measurement to...read more

Rolling margin is the difference between the planned value and the earned value at a specific point in time.

• Rolling margin helps in measuring the efficiency of a project by comparing planned and actual progress.

• It is calculated by subtracting the earned value from the planned value.

• A positive rolling margin indicates that the project is ahead of schedule, while a negative rolling margin indicates that the project is be

Consumption ratios in civil work refer to the quantities of materials used in construction projects.

• Consumption ratios vary depending on the type of civil work being done.

• Common consumption ratios include cement:sand:aggregate ratios for concrete mixes.

• Other consumption ratios may include steel reinforcement ratios for structural elements.

• Accurate consumption ratios are essential for cost estimation and project plannin

Safety policy is a set of rules and guidelines implemented by an organization to ensure the safety and well-being of its employees.

• Safety policy outlines the organization's commitment to providing a safe work environment.

• It includes procedures for identifying and mitigating hazards in the workplace.

• Safety policy also defines roles and responsibilities for employees in maintaining safety standards.

• Regular training and c...read more

Risk assessment is the process of identifying, evaluating, and prioritizing potential risks in order to minimize or eliminate them.

• Identifying potential hazards and risks in the workplace

• Evaluating the likelihood and severity of these risks

• Prioritizing risks based on their potential impact

• Developing strategies to control or mitigate the identified risks

• Regularly reviewing and updating the risk assessment process

• Example...read more

Access workplace hazards by conducting regular inspections, reviewing incident reports, and involving employees in hazard identification.

• Conduct regular workplace inspections to identify potential hazards

• Review incident reports to learn from past incidents and prevent future ones

• Involve employees in hazard identification through training and reporting systems

Confined space is an area that is not designed for continuous occupancy, has limited entry and exit points, and may have poor ventilation.

• Confined spaces are typically small and enclosed, making it difficult to enter and exit.

• These spaces may contain hazardous substances or conditions that can be harmful to workers.

• Examples of confined spaces include storage tanks, silos, tunnels, and sewers.

Hazards are potential sources of harm or danger that can cause injury, illness, or damage to property.

• Hazards can be classified into physical, chemical, biological, ergonomic, and psychosocial categories.

• Examples of hazards include slippery floors (physical), toxic chemicals (chemical), infectious diseases (biological), poor ergonomics (ergonomic), and workplace stress (psychosocial).

Safety audit is a systematic evaluation of an organization's safety management system to ensure compliance with regulations and identify areas for improvement.

• Safety audit involves reviewing policies, procedures, and practices related to safety in the workplace.

• It includes inspecting physical conditions, equipment, and work processes to identify hazards.

• Auditors assess the effectiveness of safety training programs and ...read more