Basic Knowledge For #Civil Engineering Students | #Building Site #Construction #Interview

Basic Knowledge For #Civil Engineering Students | #Building Site #Construction #Interview

Q1. In plastering what is known as 1^st coat?

Answer: In plastering, 1^st coat is known as Undercoat.

Q2. In M50, What is ‘M’ and ‘50’?

Answer: ‘M’ stands for ‘Mix’ and ‘50’ is known as Characteristics Compressive Strength of Cube of 150 mm x 150 mm x 150 mm in size after 28 days of curing in N/mm²

Q3. Difference between Development length and lap length?

Answer: Development Length transfers the Stress from Reinforcement to Concrete whereas Lap length transfers the stress from one bar to another bar.

Q4. Which instrument is used to measure the Specific gravity of liquids?

Answer:  Hydrometer is used to measure the Specific gravity of liquids.

Q5. What is the size of mould to check the compressive strength of #cement?

Answer:  As per IS 10080 : 1982, the size of mould to check the compressive strength of cement is 70.6 mm x 70.6 mm x 70.6 mm

Q6. What is the percentage strength of concrete after 28 days of curing?

Answer: The percentage strength of concrete after 28 days of curing is 99%.

Q7. What is the conversion factor to convert from square meter to square feet?

Answer: The conversion factor to convert from square meter to square feet is 10.764

Q8. As per US gallon, how many liters in 1 gallon?

Answer: As per US gallon, 1 Gallon = 3.785 Litres

Q9. Which IS code is used for the reference for #Earthquake force?

Answer: IS 1893 is used for the reference for Earthquake force.

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