Mfar Constructions Site Engineer Interview Questions and Answers

Hydro power test of DI pipes is a method to check the strength and integrity of ductile iron pipes under pressure.

• Hydro power test involves filling the DI pipes with water and pressurizing them to a specified level.

• The test is conducted to ensure that the pipes can withstand the pressure they will be subjected to in actual use.

• Leaks or deformations during the test indicate weaknesses in the pipes.

• The test helps in iden...read more

Cable (stress) is provided in bridge to increase its load carrying capacity and improve its stability.

• Cable (stress) helps to distribute the load of the bridge evenly.

• It reduces the amount of material required for construction.

• It also helps to improve the stability of the bridge.

• Cable (stress) is commonly used in suspension bridges.

• It allows for longer spans to be constructed without the need for additional support.

• Cab...read more

Lap length is the overlap of reinforcement bars in concrete, while development length is the length of bar required to transfer stress to concrete.

• Lap length is used to ensure continuity of reinforcement across a joint or splice in concrete elements.

• Development length is required to develop the full strength of the reinforcement bar and transfer it to the surrounding concrete.

• Lap length is typically specified in terms ...read more

The weight of a solid block with dimensions 400*400*200mm depends on the material it is made of.

• The weight can be calculated by multiplying the volume of the block by the density of the material.

• Different materials have different densities, so the weight will vary depending on the material.

• To calculate the volume, multiply the length, width, and height of the block.

• To find the weight, multiply the volume by the density...read more

M20 is a grade of concrete used in construction. Steel types include mild steel, high tensile steel, and stainless steel. Harbour topics may include dredging, breakwaters, and port design.

• M20 is a mix of concrete with a compressive strength of 20 MPa

• Mild steel is commonly used in construction for reinforcement

• High tensile steel has a higher strength and is used in structures with greater stress

• Stainless steel is corros...read more

Various types of steel and design codes are used in construction materials.

• Common types of steel include carbon steel, stainless steel, and alloy steel.

• Design codes for construction materials include ACI, AISC, ASCE, and ASTM.

• ACI (American Concrete Institute) provides codes for concrete design.

• AISC (American Institute of Steel Construction) provides codes for steel design.

• ASCE (American Society of Civil Engineers) prov...read more