Alps Alpine Senior Engineer Interview Questions and Answers

Q1. 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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Q2. Why LnT, Where do you see yourself after 5 years, SWOT analysis, About LnT
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Q3. 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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Q4. What is camber, How do we provide camber, Steps for the construction of a Road
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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, cle...read more
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Q5. 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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Q6. 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 i...read more
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Q7. 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 stan...read more
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Q1. 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...read more
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Q2. 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 t...read more
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General Aptitude topics

Q1. Pure technical consists of IS codes and basic knowledge on favourite subjects as you choose
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Q2. Questions from Concrete technology, IS 456, IS 800 etc..,
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Q1. RF Parameters,KPI implementation,UL DL Throughput,SINR,RARP
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Q1. Salary Discussion and Documents
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Q1. Basic Technical Knowledge related to Project requirements
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Q1. 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...read more
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Q2. 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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Q3. 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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Q4. 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 quar
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Q5. 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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Q6. 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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Q7. 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 t...read more
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Q8. 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 dise...read more
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Q9. 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 P...read more
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Q10. 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
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Q11. 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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Q12. 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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Q13. 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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