Scan Projects Interview Questions and Answers

Q1. What are the dimensions of a standard brick?
Ans. 
The standard dimensions of a brick are 3 5/8 inches x 2 1/4 inches x 8 inches.
• Standard brick size is 3 5/8 inches x 2 1/4 inches x 8 inches

• Bricks can also come in different sizes based on region or purpose

• Common brick sizes include modular, jumbo, and queen
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Q2. What is the water-cement ratio?
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The water-cement ratio is the ratio of the weight of water to the weight of cement used in a concrete mix.
• It is a crucial factor in determining the strength and durability of concrete.

• A lower water-cement ratio results in stronger and more durable concrete.

• The typical range for water-cement ratio is between 0.4 to 0.6.

• Excessive water in the mix can lead to lower strength and durability of concrete.
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Q3. What is the heat of hydration?
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Heat of hydration is the heat released when water is added to cement during the chemical reaction of hydration.
• Heat of hydration is the heat released when water is added to cement during the chemical reaction of hydration.

• It is an exothermic reaction, meaning it releases heat.

• The heat of hydration is important to consider in concrete construction to prevent cracking and ensure proper curing.

• Higher heat of hydration can...read more
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Q4. What is curing?
Ans. 
Curing is the process of maintaining adequate moisture and temperature in concrete to ensure proper hydration and strength development.
• Curing helps prevent cracking and ensures the concrete reaches its full strength potential.

• Common curing methods include water curing, membrane curing, and curing compounds.

• Proper curing typically lasts for at least 7 days, but can vary depending on the type of concrete mix and environm
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Q5. What is footing and foundation?
Ans. 
Footing is the bottommost part of a foundation that distributes the load of the structure to the soil.
• Footing is typically made of concrete and is wider than the foundation walls to provide stability.

• Foundations are the lower portion of a building structure that transfers the load to the soil.

• There are different types of foundations such as shallow foundations (like spread footings) and deep foundations (like piles).
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Q6. What is one way slab and two way slab?
Ans. 
One way slab is supported on two opposite sides while two way slab is supported on all four sides.
• One way slab is designed to carry loads along one direction only

• Two way slab is designed to carry loads along both directions

• One way slab is supported on two opposite sides

• Two way slab is supported on all four sides
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Q1. Type of Engineering Drawings
Ans. 
Engineering drawings can be categorized into different types based on their purpose and content.
• Types of engineering drawings include assembly drawings, detail drawings, schematic diagrams, and blueprints.

• Assembly drawings show how different parts fit together to create a final product.

• Detail drawings provide specific dimensions and specifications for individual components.

• Schematic diagrams illustrate the electrical o...read more
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Q2. What are the different types of views in engineering drawings?
Ans. 
Different types of views in engineering drawings include orthographic, isometric, and perspective views.
• Orthographic views show the object from different angles (top, front, side)

• Isometric views show the object in 3D with all three dimensions equally foreshortened

• Perspective views show the object as it appears to the eye with depth and foreshortening
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Q3. What are the different types of bearings used in mechanical applications?
Ans. 
Different types of bearings used in mechanical applications include ball bearings, roller bearings, plain bearings, and fluid bearings.
• Ball bearings: used for low friction applications, commonly found in wheels and conveyor belts

• Roller bearings: used for heavy radial loads, commonly found in automotive applications

• Plain bearings: simple design with no rolling elements, commonly used in sliding applications

• Fluid bearing...read more
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Q4. What are the different types of hydraulic valves and their applications?
Ans. 
Hydraulic valves control the flow and pressure of hydraulic fluid in a system, with various types for different applications.
• Directional control valves: control the direction of fluid flow in a hydraulic system

• Pressure control valves: regulate the pressure of the hydraulic fluid

• Flow control valves: manage the flow rate of the hydraulic fluid

• Check valves: allow fluid flow in one direction only

• Relief valves: protect the ...read more
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Q5. What are the components of hydraulic valves?
Ans. 
Hydraulic valves consist of components such as valve body, spool, actuator, and control mechanism.
• Valve body: main housing that contains the internal components of the valve

• Spool: moves within the valve body to control the flow of hydraulic fluid

• Actuator: component that converts hydraulic pressure into mechanical motion

• Control mechanism: regulates the operation of the valve
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Q6. Why are second angle and third angle projections not used in engineering drawings?
Ans. 
Second and third angle projections are not used in engineering drawings due to standardization and simplicity.
• First angle projection is the standard method used in engineering drawings worldwide.

• Second and third angle projections are less common and can lead to confusion for those not familiar with them.

• Using multiple projection methods can complicate the design process and increase the likelihood of errors.

• Standardiza...read more
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Q7. 7Qc Tools used
Ans. 
7QC tools are used for quality control and process improvement in compliance analysis.
• Check sheets

• Pareto charts

• Cause-and-effect diagrams

• Histograms

• Scatter diagrams

• Control charts

• Flowcharts
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Q8. What are the types of bolts and nuts, and what is the significance of pitch in bolts?
Ans. 
Types of bolts and nuts include hex bolts, carriage bolts, and wing nuts. Pitch in bolts refers to the distance between threads.
• Types of bolts: hex bolts, carriage bolts, eye bolts, etc.

• Types of nuts: hex nuts, wing nuts, lock nuts, etc.

• Pitch in bolts refers to the distance between threads on the bolt.

• Pitch is measured in threads per inch (TPI) or millimeters (mm).
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Q1. What is the work process?
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Q2. What a level up working
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Q1. What a idea target archives
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Q2. What a idea target archives and level up
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Q3. What a management system
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Q1. Relevant questions from stream
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Q2. Question from your resume
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Q1. Interaction with Head of Department,they ask few questions and also try to know about your knowledge and availability.
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Q2. Test your technical skills
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Q1. Technical Questions about industrial valves and instruments
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Q2. Application engineering and commercial knowledge
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Q1. Personality and Background check
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Q2. Experience check, education check
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Q1. About myself question
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Q1. Legal questions
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Q2. Factory act and applicable lows
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Q1. Process knowledge
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Q1. Specific your JD
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Q2. How to manage local people and IR issues.
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How to handle the site for different and remote environment.

Q1. ITI leave Technical Questions
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Q2. Practical work related
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Q3. General knowledge
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Q1. Experience in details
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Q2. Family and native place
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Q1. Details in cnc machine working
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Q2. Line diagram of power distribution
Ans. 
A line diagram of power distribution visually represents how electricity is distributed from power plants to consumers.
• Power plants generate electricity

• Electricity is transmitted through high-voltage transmission lines

• Distribution substations step down voltage for local distribution

• Power lines deliver electricity to homes and businesses

• Consumers receive electricity through outlets and appliances
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