Leena Powertech Engineers Site Engineer Interview Questions and Answers for Experienced

Q1. Why are you looking for a change?
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Q2. What are your salary expectations?
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Q3. Why should we hire you?
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Q1. What you know about core?
Ans. 
Core is the central part of a structure or object that provides strength and stability.
• Core is commonly used in construction and engineering.

• It is the central part of a building or structure that provides support and stability.

• In fitness, core refers to the muscles in the abdomen, back, and pelvis that support the spine.

• Examples of core materials include concrete, steel, and wood.

• A strong core is important for maintain
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Q1. Previous working experience detailed. Documents verification
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Q1. What is concrete Temperature
Ans. 
Concrete temperature refers to the temperature of freshly mixed concrete.
• Concrete temperature affects the setting time and strength development of concrete.

• It is important to control the temperature of concrete during mixing, transportation, and placement.

• High temperatures can accelerate the setting time and reduce workability, while low temperatures can slow down setting and strength gain.

• Concrete temperature is typic...read more
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Q2. Precocious of water structure joint
Ans. 
Precocious of water structure joint refers to the ability of a joint to withstand water pressure and prevent leakage.
• Water structure joints should be designed and constructed to be watertight.

• Various types of joints can be used in water structures, such as expansion joints, construction joints, and control joints.

• Proper sealing materials and techniques should be employed to ensure the integrity of the joints.

• Regular in...read more
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Q3. Cube test results in 7 days & 28 days
Ans. 
Cube test results are used to determine the compressive strength of concrete at 7 and 28 days.
• Cube test involves casting cubes of concrete and testing them under compression

• Results are reported in terms of compressive strength in MPa or psi

• 7-day results are used to determine early strength and 28-day results are used to determine ultimate strength

• Concrete with a compressive strength of at least 20 MPa is considered sui
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Q4. 7 days Results 65% & 28 days Results 99.99%
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Q1. About salary breakups about current CTC:- Expected CTC:-
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Q1. What is stater ?
Ans. 
A stater is a unit of weight used in ancient Greece for coins.
• Staters were typically made of silver or gold.

• The most famous stater is the Athenian silver tetradrachm, featuring the owl of Athena.

• Staters were used as a form of currency in ancient Greek city-states.
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Q2. How calculate weight of one meter steel bar formula ?
Ans. 
The weight of one meter steel bar can be calculated using a specific formula.
• The formula to calculate the weight of one meter steel bar is: Weight = (D^2/162) * L, where D is the diameter of the steel bar in mm and L is the length of the steel bar in meters.

• To calculate the weight of one meter steel bar, you need to know the diameter of the steel bar and the density of steel (which is 7850 kg/m^3).

• For example, if the d...read more
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Aptitude test is for problem solving

Group discussion plays a majore role how employees connects to others and communicate with his colleagues and how dare he/she is..

Q1. The panel asked me about my previous company & projects ,few technical Questions. Be confident & on point.
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Q1. What is curing,why it is done
Ans. 
Curing is the process of maintaining moisture and temperature conditions in concrete for a specific period to ensure proper hydration and strength development.
• Curing helps in preventing moisture loss from the concrete, which is essential for proper hydration.

• It helps in maintaining the desired temperature for the chemical reactions to occur.

• Curing enhances the strength, durability, and overall performance of the concre...read more
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Diploma in mechanical engineering thermal engineering or manufacturing

Q1. Thermodynamics law
Ans. 1st Law of Thermodynamics - Energy cannot be created or destroyed. 2nd Law of Thermodynamics - For a spontaneous process, the entropy of the universe increases. 3rd Law of Thermodynamics - A perfect crystal at zero Kelvin has zero entropy.
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Q2. Gear and type four stock and two stock
Ans. The main difference between a 4-stroke engine and a 2-stroke engine is that a 4-stroke engine goes through four stages, or two complete revolutions, to complete one power stroke, while a 2-stroke engine goes through 2 stages, or one complete revolution, to complete one power stroke.
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Q3. Stress and strain or strain and stress graph
Ans. The Stress-Strain curve is a type of graph plotted between “stress and strain”. This graph explains the relationship between “stress and strain” of different materials when tensile stress is applied to them. This curve is plotted on the basis of an experimental result.
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Q4. Types of mechanical properties
Ans. 
Mechanical properties refer to the behavior of materials under applied forces.
• Strength - ability to withstand applied stress without failure

• Hardness - resistance to deformation or scratching

• Elasticity - ability to return to original shape after deformation

• Ductility - ability to deform without breaking

• Toughness - ability to absorb energy before fracturing
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Q5. Types of heat treatment
Ans. 
Heat treatment is a process used to alter the physical and sometimes chemical properties of a material through heating and cooling.
• Annealing: heating a material to a specific temperature and then slowly cooling it to relieve internal stresses and increase ductility

• Quenching: rapid cooling of a material to increase hardness

• Tempering: heating a material to a specific temperature and then cooling it to improve toughness

• No...read more
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Q6. Heat transfer and types
Ans. 
Heat transfer is the movement of heat from one object to another due to a temperature difference.
• There are three main types of heat transfer: conduction, convection, and radiation.

• Conduction is the transfer of heat through a material without any movement of the material itself.

• An example of conduction is when a metal spoon in a hot cup of tea becomes hot.

• Convection is the transfer of heat through the movement of fluids...read more
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Q7. Types of lathe machine
Ans. 
Types of lathe machines include engine lathe, turret lathe, and center lathe.
• Engine lathe is the most common type used for general purpose turning.

• Turret lathe has a turret tool post for quick tool changes.

• Center lathe is used for precision work and has a tailstock for support.

• Other types include automatic lathe, CNC lathe, and vertical lathe.
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