Spl Infrastructure 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

The hydrotest pressure is 1.5 times the design pressure.

• Hydrotest pressure is the pressure applied to a vessel or pipeline to check for leaks or defects.

• It is usually done before commissioning the system.

• For example, if the design pressure is 100 psi, the hydrotest pressure would be 150 psi.

The procedure for fit up inspection includes classification, cleaning, alignment, root gap, root face, bevel angle, and mismatch or overlap.

• Classify the base metal

• Clean the surface

• Align the parts to be joined

• Check the root gap and root face

• Measure the bevel angle

• Check for any mismatch or overlap

• Ensure all specifications are met