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10+ INCO Group Of Companies Interview Questions and Answers

Updated 4 Feb 2025

Q1. What type of admixture used in concrete?

Ans.

Admixtures are chemicals added to concrete to enhance its properties or performance.

  • Admixtures can improve workability, durability, strength, and set time of concrete.

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

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Q2. What is cube casting frequency Ans 0 -5 m3 1 set

Ans.

Cube casting frequency refers to the number of times concrete cubes are cast for testing purposes.

  • Cube casting frequency is determined by the project requirements and specifications.

  • It is important to cast an adequate number of cubes to ensure accurate testing results.

  • Typically, cube casting frequency ranges from 0 to 5 cubic meters per set.

  • For example, if the project requires testing of 10 cubic meters of concrete, two sets of cubes may be cast.

  • The cubes are then cured and t...read more

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Q3. What is cube acceptance criteria?

Ans.

Cube acceptance criteria refers to the set of standards or requirements that a cube must meet in order to be accepted or approved.

  • Cube dimensions must meet specified tolerances

  • Surface finish must meet specified standards

  • Cube must pass specified strength or durability tests

  • Cube must meet any other specified criteria for acceptance

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Q4. What is workability of concrete?

Ans.

Workability of concrete refers to its ease of mixing, placing, and compacting without segregation or bleeding.

  • Workability is influenced by water content, aggregate size and shape, and admixtures.

  • Concrete with high workability is easier to place and compact, while low workability may require more effort.

  • Examples of tests to measure workability include slump test, flow table test, and Vebé test.

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Q5. What is code for UPV test?

Ans.

The code for UPV test is ASTM C597.

  • ASTM C597 is the standard code for Ultrasonic Pulse Velocity (UPV) test.

  • UPV test is commonly used in construction to assess the quality of concrete.

  • The test involves sending ultrasonic pulses through the concrete and measuring the time taken for the pulses to travel through the material.

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Q6. What is slump cone test layer

Ans.

The slump cone test measures the consistency and workability of fresh concrete.

  • The slump cone test is a standard test used in the construction industry.

  • It measures the consistency and workability of fresh concrete.

  • A slump cone is a mold in the shape of a truncated cone.

  • The test involves filling the cone with fresh concrete, compacting it, and then removing the cone to measure the slump or settlement of the concrete.

  • The slump value indicates the flow and cohesiveness of the co...read more

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Q7. Name the different types of pile.

Ans.

Different types of pile include friction piles, end-bearing piles, and composite piles.

  • Friction piles rely on skin friction along the length of the pile for support.

  • End-bearing piles transfer the load to a strong layer of soil or rock at the bottom.

  • Composite piles combine different materials like concrete and steel for added strength.

  • Other types include sheet piles, helical piles, and screw piles.

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Q8. What stands for M30?

Ans.

M30 stands for a metric thread size commonly used in engineering and manufacturing.

  • M30 refers to a metric thread size with a diameter of 30mm

  • It is commonly used in engineering and manufacturing for fastening components

  • Examples of M30 fasteners include bolts, screws, and nuts

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Q9. What is a motor and starter.

Ans.

A motor is an electrical device that converts electrical energy into mechanical energy, while a starter is a device that starts the motor.

  • A motor consists of a rotor and a stator, which work together to produce rotational motion.

  • Motors are used in a wide range of applications, from powering industrial machinery to driving electric vehicles.

  • A starter is typically used to provide the initial burst of power needed to get a motor running.

  • Starters can take many forms, including ma...read more

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Q10. What are the IS CODE for billing & concrete

Ans.

IS codes for billing & concrete in construction industry

  • IS 456:2000 - Code of practice for plain and reinforced concrete

  • IS 3370:1965 - Code of practice for concrete construction

  • IS 1786:2008 - High strength deformed steel bars and wires for concrete reinforcement

  • IS 4985:2000 - PVC pipes for potable water supplies

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Q11. What is a transformer

Ans.

A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.

  • Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

  • They consist of two coils of wire, known as the primary and secondary windings, wrapped around a magnetic core.

  • When an AC voltage is applied to the primary winding, it creates a magnetic field that induces a voltage in the secondary winding.

  • Tran...read more

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Q12. What are the procedures for billing.

Ans.

Procedures for billing involve preparing invoices, verifying accuracy, sending to clients, and following up on payments.

  • Prepare detailed invoices based on project scope and work completed

  • Verify accuracy of billing information, including rates, quantities, and discounts

  • Send invoices to clients through email or mail

  • Follow up on payments and resolve any billing discrepancies

  • Maintain records of all billing transactions for future reference

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Q13. Codes and Standards related to welding

Ans.

Various codes and standards govern welding processes to ensure quality and safety.

  • American Welding Society (AWS) codes such as AWS D1.1 for structural welding

  • American Society of Mechanical Engineers (ASME) codes such as ASME Section IX for boiler and pressure vessel welding

  • International Organization for Standardization (ISO) standards like ISO 9606 for qualification of welders

  • European Standard EN 1090 for structural steel and aluminum welding

  • National Fire Protection Associati...read more

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