Recity Interview Questions and Answers

Mix design of flexible pavement and Rigid pavement involves different methods and standards.

• Flexible pavement mix design is based on MS-2 and uses marshal curves parameters.

• Rigid pavement mix design is prepared on a trial basis using MORT S-600 and IRC -58-2004.

• Flexible pavement uses bituminous mixes while rigid pavement uses PQC mix design.

• MORT&H s-500 and IRC-37 are used for flexible pavement mix design.

• MORT S-600 and IRC -58-2004 are used for rigid pavement mix design.

The steel cutting length formula for a 90° bend is calculated using the bend allowance and the bend radius.

• The bend allowance is the length of material that is consumed during the bending process.

• The bend radius is the radius of the inside curve of the bend.

• The formula for calculating the steel cutting length for a 90° bend is: Cutting Length = Bend Allowance + (π/2) x Bend Radius

• The value of π is approximately 3.14159.

M20 concrete is a type of concrete with a compressive strength of 20 megapascals (MPa).

• M20 concrete is commonly used in construction for various applications.

• It is a mix of cement, sand, and aggregate in specific proportions.

• The ratio of cement to sand to aggregate in M20 concrete is 1:1.5:3.

• It is suitable for non-structural components like foundations, pathways, etc.

• M20 concrete has a curing period of 28 days to achieve its full strength.

Mix design is the process of determining the proportions of cement, water, aggregates, and admixtures to produce concrete of desired strength and durability.

• Grade of concrete refers to the strength of the concrete mix, which is determined by its compressive strength after 28 days of curing.

• Lab testing for concrete includes tests for compressive strength, slump, air content, and density.

• Mix design involves selecting the appropriate materials and proportions to achieve the desi...read more

Bodh Gaya is a famous place in Bihar.

• Bodh Gaya is a pilgrimage site for Buddhists as it is the place where Gautama Buddha attained enlightenment.

• The Mahabodhi Temple in Bodh Gaya is a UNESCO World Heritage Site.

• Bodh Gaya is also known for its ancient university, Nalanda, which was a center of learning in ancient India.

• Other notable places in Bihar include the ancient city of Patna, the ruins of Vikramshila University, and the Vaishali Stupa.

The question is related to the process of making level sheets using WMM, WBM, DBM, and BC.

• Level sheet making involves the use of different materials such as WMM, WBM, DBM, and BC.

• WMM stands for Wet Mix Macadam and is used as a base layer for roads.

• WBM stands for Water Bound Macadam and is used as a base layer for flexible pavements.

• DBM stands for Dense Bituminous Macadam and is used as a binder course layer for roads.

• BC stands for Bituminous Concrete and is used as a wearing ...read more

The total length of steel is equal to 2 times the difference between the length of the steel and twice its diameter.

• The formula for total length of steel is: L = 2(L-2d)

• L represents the total length of steel

• d represents the diameter of the steel

• Example: If the length of the steel is 10 meters and the diameter is 2 meters, the total length of steel would be 12 meters

Water supply can be either direct or indirect, while drainage can be either single stack or separate system.

• Water supply can be direct, where water is supplied directly from the mains to the fixtures, or indirect, where water is stored in a tank and then supplied to the fixtures.

• Drainage can be a single stack system, where all waste water is collected in a single stack and then discharged into the sewer, or a separate system, where foul water and surface water are collected s...read more