L&T Energy Hydrocarbon QC Engineer Interview Questions and Answers

Q1. About slump and cube
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Q2. About sfqp and is code
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Q1. How to do slump test
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Slump test is a method to measure the workability of concrete by observing the consistency and flow of the concrete mix.
• Prepare a slump cone by lubricating the inside surface and placing it on a smooth, flat surface.

• Fill the cone with concrete in three layers, each layer tamped with a rod 25 times.

• Remove excess concrete, level the top, and lift the cone vertically. Measure the slump of the concrete.

• Record the slump mea...read more
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Q2. How to fill cube and whats you have checked on site
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To fill a cube, ensure all sides are properly aligned and filled with the material. Check for any gaps or air pockets.
• Ensure the cube mold is clean and dry before filling.

• Pour the material into the mold slowly and evenly to prevent air pockets.

• Use a vibrating table to help settle the material and remove any air bubbles.

• Check for any leaks or cracks in the mold before filling to prevent material from leaking out.

• After f...read more
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Q1. API 620 description
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Q2. Welder qualification
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Q3. About code and standards
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Q4. Weldbility of steel
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Q5. Chemical composition of material
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APTITUDE+TECHNICAL- ELECTRICAL CORE

Q1. WHAT IS BLDC MOTOR
Ans. 
BLDC motor stands for Brushless DC motor, which is a type of electric motor that operates without the need for brushes to transfer electrical current.
• BLDC motors use electronic commutation instead of brushes to control the motor's operation.

• They are more efficient, reliable, and have a longer lifespan compared to brushed DC motors.

• BLDC motors are commonly used in applications such as electric vehicles, drones, and indu
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Q1. Related to site engineer
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Q2. RCC, concrete,and other
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Q1. Sop for the basic activities carried out at site
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SOP for basic activities at site includes inspection, testing, documentation, and reporting.
• Inspection of materials and equipment

• Testing of materials for quality control

• Documentation of test results and findings

• Reporting any deviations or non-conformities

• Ensuring compliance with project specifications and standards
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Q2. QAP regarding questions
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Q1. How about my previous work experience
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Q2. Why I am interested in this firm
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Q1. Bar Bending Schedule
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Q2. Find out shuttering Area
Ans. 
Shuttering area can be calculated by finding the total surface area of the formwork used for concrete construction.
• Calculate the surface area of each individual formwork used for the concrete structure

• Add up the surface areas of all formworks to get the total shuttering area

• Consider any openings or gaps in the formwork when calculating the area
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Q3. Semi circle area formula
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The formula for the area of a semi-circle is (1/2) * pi * r^2, where r is the radius of the semi-circle.
• The formula for the area of a semi-circle is (1/2) * pi * r^2

• The radius (r) is half the diameter of the circle

• Example: If the radius of a semi-circle is 5 cm, the area would be (1/2) * 3.14 * 5^2 = 39.25 cm^2
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Q1. Why u want to join this company ?
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Q2. Why u want to quit Your present company
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Q3. About my Salary
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Q1. How many years of experience do you have?
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Q2. What type of work are you doing in your previous company/job.
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Q1. Valve related questions
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Q2. Installation of valve
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Installation of valve involves proper positioning, alignment, and connection to ensure efficient flow control.
• Valve should be positioned in a way that allows for easy access for maintenance and operation.

• Proper alignment of the valve with the piping system is crucial to prevent leaks and ensure smooth flow.

• Valve should be securely connected to the piping system using appropriate fittings and seals.

• Testing the valve aft...read more
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