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30+ Stanford Laboratories Interview Questions and Answers

Updated 27 Aug 2024
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Q1. How many time u take any update shuttering system?

Ans.

The question is unclear and lacks context.

  • Please provide more information about the 'update shuttering system'.

  • Specify the time frame for the updates.

  • Clarify the purpose or objective of the updates.

  • Provide any relevant examples or scenarios.

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Q2. As contractor farm Engineer in RCC which is most important? 1) Reinforcements 2)Formwork 3)Concrete And why?

Ans.

Concrete is the most important as it provides the strength and durability to the structure.

  • Concrete is the backbone of any RCC structure.

  • It provides the strength and durability to the structure.

  • Reinforcements and formwork are important too, but without concrete, they are useless.

  • Proper mix design and curing of concrete are crucial for the longevity of the structure.

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Q3. What is estimation and costing, No. of bricks required in 1 m3 of brickwork, various types of contracts

Ans.

Estimation and costing involves calculating the expenses of a project. No. of bricks required in 1 m3 of brickwork depends on the size of the bricks. There are various types of contracts in construction.

  • Estimation and costing involves calculating the expenses of a project, including materials, labor, and other costs.

  • No. of bricks required in 1 m3 of brickwork depends on the size of the bricks used. For example, if standard size bricks are used, around 500 bricks are required ...read more

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Q4. Full specifications about machines which is handling you.

Ans.

The machines handling me are advanced computer systems with high processing power and multiple peripherals.

  • The machines have a minimum of 16GB RAM and a quad-core processor.

  • They are equipped with high-speed SSD storage for faster data access.

  • The machines have multiple USB ports, HDMI ports, and Ethernet connectivity.

  • They are running on the latest operating system and have up-to-date software.

  • The machines are capable of handling complex simulations and data analysis tasks.

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Q5. What is hoop stress, How to provide reinforcement in a dome

Ans.

Hoop stress is the stress exerted circumferentially in a cylindrical or spherical object. Reinforcement in a dome can be provided by using steel bars or mesh.

  • Hoop stress is caused by the pressure inside the object and is calculated using the formula P*r/t, where P is the pressure, r is the radius, and t is the thickness of the object.

  • In a dome, reinforcement can be provided by using steel bars or mesh that are placed in a criss-cross pattern and embedded in the concrete.

  • The r...read more

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Q6. What is an admixture, How do they affect the concrete, name various admixtures.

Ans.

Admixtures are chemicals added to concrete to enhance its properties. They affect the workability, strength, and durability of concrete.

  • Admixtures are added to concrete to improve its quality and performance.

  • They can affect the setting time, workability, strength, and durability of concrete.

  • Examples of admixtures include water reducers, accelerators, retarders, air-entraining agents, and superplasticizers.

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Q7. What is the cross section of bottom chord of open web girder.

Ans.

The cross section of bottom chord of open web girder varies depending on the design and load requirements.

  • The cross section can be rectangular, trapezoidal, or triangular in shape.

  • The size and shape of the bottom chord is determined by the span of the girder and the loads it will carry.

  • The material used for the bottom chord can also affect its cross section.

  • Examples of open web girder bottom chord cross sections include rectangular box, inverted trapezoid, and triangular shap...read more

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Q8. What is camber, How do we provide camber, Steps for the construction of a Road

Ans.

Camber is the slope provided to the road surface to drain off rainwater. It is achieved by raising the center of the road surface.

  • Camber is the curvature provided to the road surface to ensure proper drainage of rainwater.

  • It is achieved by raising the center of the road surface.

  • The amount of camber depends on the width of the road and the expected rainfall.

  • The steps for the construction of a road include surveying, clearing the area, laying the sub-base, laying the base, and ...read more

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Q9. Calculate deflection at the free end of a cantilever beam with a point load at the end

Ans.

Calculate deflection at free end of cantilever beam with point load at end

  • Use the formula: δ = (PL³)/(3EI)

  • P is the point load at the end

  • L is the length of the cantilever beam

  • E is the modulus of elasticity of the beam material

  • I is the moment of inertia of the beam's cross-sectional area

  • Example: A steel cantilever beam with a length of 2 meters and a point load of 500 N at the end has a deflection of 0.104 mm

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Q10. If Bolt Thired is 20 mm . What will be Size of bolt head size in mm

Ans.

The size of the bolt head will typically be larger than the bolt thread size.

  • The size of the bolt head is usually larger than the bolt thread size for proper grip and torque application.

  • Common sizes for bolt heads include 22mm, 24mm, 27mm, etc.

  • The size of the bolt head is determined based on the application and required torque specifications.

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Q11. In Ball bearing Number is 6405. What is inserting Shaft size in mm.

Ans.

The inserting shaft size for a ball bearing number 6405 is typically 25 mm.

  • The inserting shaft size for ball bearing 6405 is usually 25 mm.

  • The shaft size can vary depending on the specific design and application.

  • It is important to ensure the correct shaft size is used to prevent damage to the bearing.

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Q12. What are the machines you are handling .

Ans.

I handle a variety of machines including CNC machines, 3D printers, and robotic arms.

  • CNC machines

  • 3D printers

  • Robotic arms

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Q13. Manufacturing of cement, Durability of concrete, Chemical reaction of cement with water.

Ans.

The manufacturing of cement involves chemical reactions with water, resulting in the durability of concrete.

  • Cement is made by heating limestone, clay, and other materials in a kiln

  • The chemical reaction between cement and water, known as hydration, results in the hardening of concrete

  • The durability of concrete depends on factors such as the water-cement ratio, curing time, and quality of materials used

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Q14. Different between manual and automatic transmission

Ans.

Manual transmission requires driver to shift gears while automatic transmission shifts gears automatically.

  • Manual transmission has a clutch pedal and gear stick while automatic transmission has a gear selector and no clutch pedal.

  • Manual transmission provides better control and fuel efficiency while automatic transmission provides ease of use and convenience.

  • Manual transmission is common in sports cars while automatic transmission is common in luxury cars.

  • Manual transmission r...read more

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Q15. Why Rotation equipment will get sound and vibration.

Ans.

Rotation equipment can develop sound and vibration due to various reasons such as imbalance, misalignment, wear and tear, or bearing issues.

  • Imbalance in rotating parts can cause vibration and noise. For example, a misaligned shaft or uneven distribution of mass.

  • Misalignment of components can lead to vibration and noise. For instance, if a motor shaft is not properly aligned with the pump shaft.

  • Wear and tear in bearings can result in vibration and noise. This can happen if the...read more

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Q16. What is Tail light,high intensity light Radium Stickers.

Ans.

Tail light, high intensity light Radium Stickers are reflective stickers used on vehicles to enhance visibility and safety.

  • Tail light Radium Stickers are placed on the rear of vehicles to make them more visible in low light conditions.

  • High intensity light Radium Stickers are used on bicycles, helmets, and other objects to increase visibility to others.

  • These stickers contain radium material that reflects light, making them glow in the dark.

  • They are commonly used on emergency v...read more

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Q17. Trouble shooting of hydraulic system.

Ans.

Troubleshooting of hydraulic system

  • Identify the problem by checking for leaks, pressure drops, and unusual noises

  • Check the fluid level and quality

  • Inspect the filters and replace if necessary

  • Check the valves and actuators for proper operation

  • Use diagnostic tools like pressure gauges and flow meters

  • Refer to the system manual for troubleshooting steps

  • Test the system after making repairs to ensure proper operation

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Q18. What is purposes of Inter cooler in Air line.

Ans.

Inter cooler in an air line is used to cool down the compressed air before it enters the engine, increasing its density and efficiency.

  • Increases air density for better combustion efficiency

  • Reduces the risk of engine knocking or detonation

  • Improves overall engine performance and power output

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Q19. Types of oil and thier property.

Ans.

Different types of oil have different properties based on their composition and usage.

  • Mineral oil is a byproduct of petroleum and is commonly used as a lubricant.

  • Vegetable oils are derived from plants and are used for cooking and as a source of biofuel.

  • Synthetic oils are man-made and have specific properties for high-performance engines.

  • Animal oils, such as fish oil, are used for nutritional supplements and in the production of cosmetics.

  • Each type of oil has unique properties...read more

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Q20. What is meant breathers and purpose.

Ans.

Breathers are devices used to prevent the build-up of pressure or vacuum within a sealed container or system.

  • Breathers allow for the exchange of air to prevent pressure differentials.

  • They are commonly used in hydraulic systems to prevent contamination.

  • Breathers can also be used in storage tanks to prevent the formation of a vacuum.

  • The purpose of breathers is to maintain optimal operating conditions within a system.

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Q21. What is the difference of RR,BD &LBD

Ans.

RR stands for Relative Risk, BD stands for Base Diameter, and LBD stands for Largest Base Diameter.

  • RR is a measure of the risk of an event happening in one group compared to another group.

  • BD refers to the diameter of the base of a structure or object.

  • LBD is specifically referring to the largest diameter of the base of a structure or object.

  • Example: RR can be used in epidemiology to compare the risk of developing a disease between two groups.

  • Example: BD can be used in engineer...read more

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Q22. What is PTO in In Power and Documents.

Ans.

PTO in In Power and Documents stands for Power Take Off, a mechanism used to transfer power from a vehicle's engine to another application.

  • PTO is commonly used in trucks and other heavy-duty vehicles to power auxiliary equipment such as hydraulic pumps or generators.

  • In In Power and Documents, PTO may refer to the specific settings or configurations related to power take off systems in vehicles.

  • Understanding PTO in In Power and Documents is important for ensuring proper operat...read more

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Q23. What is showing "W" in 15W/40 Oil

Ans.

The 'W' in 15W/40 oil stands for winter, indicating the oil's viscosity in cold temperatures.

  • The 'W' stands for 'winter' in multi-grade oils, indicating the oil's viscosity in cold temperatures

  • The number before the 'W' (15 in this case) represents the oil's viscosity at low temperatures

  • The number after the 'W' (40 in this case) represents the oil's viscosity at high temperatures

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Q24. What is HIRA and types of fires

Ans.

HIRA stands for Hazard Identification and Risk Assessment. There are four types of fires: Class A, B, C, and D.

  • HIRA is a process of identifying potential hazards and assessing the risks associated with them.

  • It involves identifying the hazards, evaluating the risks, and implementing control measures to mitigate the risks.

  • Class A fires involve ordinary combustibles like wood, paper, and cloth.

  • Class B fires involve flammable liquids and gases.

  • Class C fires involve electrical equ...read more

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Q25. mix design of concrete, btech project

Ans.

Mix design of concrete and BTech project

  • Mix design involves determining the proportions of cement, water, aggregates, and admixtures to achieve desired properties of concrete

  • Factors like strength, workability, durability, and cost are considered while designing the mix

  • BTech project can involve studying the effect of different mix designs on properties of concrete or developing a new mix design

  • Examples of BTech projects related to mix design are 'Effect of Fly Ash on Strength ...read more

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Q26. What is LCV and HDD Vehicles

Ans.

LCV stands for Light Commercial Vehicles and HDD stands for Heavy Duty Vehicles.

  • LCV vehicles are designed for transporting goods or passengers with a gross vehicle weight of up to 3.5 tons.

  • Examples of LCV vehicles include vans, pickup trucks, and small buses.

  • HDD vehicles are designed for heavy-duty tasks such as construction, mining, or transportation of heavy loads.

  • Examples of HDD vehicles include dump trucks, tractor-trailers, and cement mixers.

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Q27. Trouble shooting about engine.

Ans.

Engine troubleshooting involves identifying and resolving issues with the engine's performance.

  • Start by identifying the symptoms of the problem, such as strange noises or decreased power

  • Check the engine's fluids, filters, and belts for any signs of wear or damage

  • Use diagnostic tools such as a code reader or oscilloscope to identify any error codes or electrical issues

  • Inspect the engine's components, such as the spark plugs and fuel injectors, for any signs of damage or malfun...read more

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Q28. What is Periodical Maintenance

Ans.

Periodical maintenance refers to regular scheduled maintenance tasks performed on equipment or systems to ensure optimal performance and prevent breakdowns.

  • Periodical maintenance involves routine inspections, cleaning, lubrication, and adjustments.

  • It helps to identify and address potential issues before they become major problems.

  • Examples include changing the oil in a car every 5,000 miles, inspecting HVAC systems quarterly, and calibrating machinery annually.

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Q29. What is A,B,C&D Service.

Ans.

A,B,C&D Service refers to different levels of maintenance services provided for equipment or machinery.

  • A Service: Regular maintenance to prevent breakdowns

  • B Service: Intermediate level maintenance to address minor issues

  • C Service: Major maintenance to address significant issues

  • D Service: Overhaul or complete refurbishment of the equipment

  • Example: A car manufacturer may offer A, B, C, and D services for their vehicles

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Q30. What are the types of delay

Ans.

Types of delay include network delay, processing delay, transmission delay, and queuing delay.

  • Network delay: caused by the time it takes for data packets to travel across a network.

  • Processing delay: occurs when a device needs time to process data before forwarding it.

  • Transmission delay: results from the time it takes for data to be transmitted over a medium.

  • Queuing delay: happens when data packets are held in a queue before being processed or transmitted.

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Q31. Overheating reason.

Ans.

Overheating in engineering can be caused by various factors.

  • Insufficient cooling system

  • High ambient temperature

  • Excessive workload or stress on the system

  • Poor ventilation or blocked air vents

  • Faulty or inadequate thermal management

  • Improperly applied thermal paste

  • Hardware or component failure

  • Software or driver issues

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Q32. What is level in survey

Ans.

Level in survey refers to the height or elevation of a point relative to a reference point.

  • Level is a measurement of height or elevation in surveying.

  • It is used to determine the difference in elevation between two points.

  • A level instrument, such as a level rod or laser level, is used to take measurements.

  • Leveling is important in construction, engineering, and land surveying.

  • Examples of level surveys include topographic surveys, boundary surveys, and construction surveys.

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Q33. How to execute

Ans.

Execute what exactly? Please provide more context.

  • Can you please clarify what needs to be executed?

  • Are you referring to executing a specific task or project?

  • Without more information, it's difficult to provide a specific answer.

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Q34. Different types of acts used in safety

Ans.

Acts used in safety include preventive, corrective, detective, and compensatory measures.

  • Preventive measures aim to avoid accidents or incidents from happening, such as safety training, equipment maintenance, and hazard identification.

  • Corrective measures are taken after an accident or incident has occurred, such as first aid, repairs, and investigations.

  • Detective measures involve monitoring and identifying potential hazards or risks, such as safety inspections and audits.

  • Comp...read more

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Q35. What is Check list

Ans.

A checklist is a list of items or tasks that need to be completed or verified.

  • Used to ensure all necessary tasks are completed

  • Can be used in various fields such as project management, quality control, and safety inspections

  • Examples: pre-flight checklist for pilots, grocery shopping list, daily to-do list

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Q36. What is cement motar strenght

Ans.

Cement mortar strength refers to the ability of the mixture to resist compression and tension forces.

  • Cement mortar strength is measured in terms of compressive strength and tensile strength.

  • The compressive strength of cement mortar is determined by subjecting a cube of the mixture to a compressive load until it fails.

  • The tensile strength of cement mortar is determined by subjecting a prismatic specimen of the mixture to a tensile load until it fails.

  • The strength of cement mor...read more

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Q37. Example for concurrent delay

Ans.

Concurrent delay occurs when multiple delays impact a project at the same time.

  • Concurrent delays can result in a longer overall project duration.

  • Examples include bad weather and labor strikes happening simultaneously.

  • Proper documentation is crucial to identify and address concurrent delays.

  • Contractual agreements may specify how concurrent delays are handled.

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Interview Process at Stanford Laboratories

based on 16 interviews
3 Interview rounds
Technical Round
HR Round
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