Basic Knowledge for Freshers #Civil #Construction Engineer

Q1. What are the functions of #Bentonite?

Answer: The main uses of bentonite are for drilling mud, binder (e.g. foundry-sand bond, iron ore pelletizer), purifier, absorbent (e.g. pet litter), and as a groundwater barrier. In other words, we can say, Bentonite stabilizes the Soil.

Q2. What is the ultimate load capacity of Pile?

Answer: The maximum load which a pile can carry before failure, that is, when the founding strata fail by shear as evidenced from the load settlement curve or the pile fails as a structural member.

Q3. What are the minimum criteria to provide Expansion Joint in Building Works?

Answer: As per IS 456: 2000 (Clause- 27.2), Normally structures exceeding 45 m in length are designed with one nor more expansion joints.

Q4. What are the factors affecting Development Length?

Answer: The factors affecting Development Length are:

a) Grade of Steel b) Grade of Concrete c) Diameter of Bar

Q5. What is the function of Frog in Brick?

Answer: Frog in Brick helps in developing proper joint between brick and mortar.

Q6. Which steel is used in the manufacture of Rail?

Answer: Manganese steel is used in the manufacture of Rail.

Q7. What type of cement is used in Sea Water Construction?

Answer: As per IS 456: 2000 (Clause-8.2.8), the type of cement used in Sea Water Construction are PSC (Portland Slag Cement) and PPC (Portland Pozzolana Cement)

Q8. What are the factors used to convert from N/mm² to Kg/cm²?

Answer: To convert from N/mm² to Kg/cm² = Multiply by 10.197 ; To convert from Kg/cm² to N/mm² = Divide by 10.197