MJ INFRASTRUCTURE Civil Quality Engineer Interview Questions and Answers

Concrete is a composite material made of cement, water, aggregates, and sometimes additives, used in construction.

• Concrete is a versatile and durable material used in construction for buildings, bridges, roads, and more

• It is made by mixing cement, water, and aggregates like sand and gravel

• Additives can be included to enhance specific properties of the concrete, such as strength or workability

• Once mixed, concrete harden...read more

BBS stands for Bar Bending Schedule, which is a detailed list of reinforcement bars to be used in a construction project.

• BBS includes details such as bar mark, type of bar, diameter, length, shape, and quantity.

• It helps in estimating the quantity of steel required for the project.

• BBS is essential for ensuring the structural integrity and strength of the building.

• Components of BBS include bending shapes, cutting length,

Concrete is a composite material made of cement, water, aggregates, and sometimes additives, used in construction for its strength and durability.

• Concrete is made by mixing cement, water, and aggregates like sand and gravel.

• It hardens over time through a chemical process called hydration.

• Concrete is used in construction for building foundations, roads, bridges, and more.

• Different types of concrete can be used based on ...read more

PCC stands for Plain Cement Concrete and is made of cement, sand, and aggregate. RCC stands for Reinforced Cement Concrete and has steel reinforcement added to increase strength.

• PCC is used for non-structural works like levelling, bedding for footing, etc.

• RCC is used for structural works like beams, columns, slabs, etc.

• RCC has higher strength and durability compared to PCC.

• PCC does not have any reinforcement, while RCC...read more

Contours are imaginary lines that connect points of equal elevation on a map or surface.

• Contours are used in topographic maps to show the shape and elevation of the land.

• They help visualize the terrain and identify features such as hills, valleys, and slopes.

• Closer contour lines indicate steeper slopes, while widely spaced lines represent flatter areas.

• Contour lines never cross each other and form closed loops around h...read more

Reinforcement in civil engineering refers to the process of adding steel bars or mesh to concrete structures to increase their strength and durability.

• Reinforcement helps to resist tensile forces in concrete structures.

• Common types of reinforcement include rebar (steel bars) and wire mesh.

• Reinforcement is placed strategically within the concrete forms before pouring the concrete.

• Properly placed reinforcement helps prev...read more

Cement is a binding material used in construction to hold together bricks, stones, and other materials. Sand is a fine aggregate used in concrete mixes.

• Cement is a powdery substance made from limestone and clay, which when mixed with water forms a paste that hardens to bind materials together.

• Sand is a granular material composed of finely divided rock and mineral particles, commonly used as a fine aggregate in concrete...read more

Aggregate and sand are materials commonly used in construction for creating concrete and mortar.

• Aggregate is a mixture of sand, gravel, crushed stone, or other materials used in construction.

• Sand is a granular material composed of finely divided rock and mineral particles.

• Aggregate is used in concrete to provide bulk and strength, while sand is used in mortar for bonding materials together.

• Examples of aggregate include...read more

Pressure in fire hydrant pipe is determined by factors like water flow rate, pipe diameter, and elevation difference.

• Pressure in fire hydrant pipe is directly related to the flow rate of water through the pipe.

• The diameter of the pipe also affects the pressure, with larger diameter pipes resulting in lower pressure loss.

• Elevation difference between the hydrant and the point of discharge can impact the pressure in the p...read more

NRC stands for National Register of Citizens.

• NRC is a register containing names of all genuine Indian citizens in the state of Assam, India.

• It was first prepared in 1951 and is now being updated to identify illegal immigrants.

• The NRC process involves verifying the citizenship status of individuals based on documents like birth certificates, land records, etc.

The sequence of activities for aluminium (mivan) structure construction involves several steps.

• Preparing the site and marking the layout

• Constructing the foundation and footings

• Erecting the aluminium formwork panels

• Fixing reinforcement bars and embedment items

• Pouring concrete into the formwork

• Curing the concrete

• Stripping the formwork

• Finishing and cleaning the structure

The finishing work sequence of activities involves the final steps in a construction project to complete the project and prepare it for use.

• Inspecting and correcting any defects or deficiencies

• Installing finishes such as flooring, paint, and fixtures

• Completing final electrical and plumbing work

• Cleaning and tidying up the site

• Obtaining necessary permits and certifications

• Conducting final inspections

• Handing over the comp

Waterproofing ponding test hours determine the duration for which a waterproofing system can withstand water ponding.

• Waterproofing ponding test hours measure the ability of a waterproofing system to resist water penetration under prolonged ponding conditions.

• The test involves subjecting the waterproofing system to a specified water depth for a certain duration.

• The duration of the test can vary depending on the project ...read more

The accepted rolling margin value for 8mm to 10mm steel rods varies depending on the specific project requirements and industry standards.

• The accepted rolling margin value can range from 2% to 5%.

• It is important to consult project specifications and industry guidelines for the specific rolling margin value.

• For example, if the rolling margin value is set at 3%, a 10mm steel rod could have a diameter between 9.7mm and 10...read more

The unit weight of steel refers to the weight of a given volume of steel material.

• The unit weight of steel is typically measured in pounds per cubic foot or kilograms per cubic meter.

• The specific unit weight of steel can vary depending on the type and grade of steel being used.

• For example, the unit weight of structural steel is around 490 pounds per cubic foot or 7850 kilograms per cubic meter.

• The unit weight of reinfo...read more