Millennium Engineers & Contractors Civil Site Engineer Interview Questions and Answers for Experienced

Power system parts of Erection include transformers, switchgear, cables, and busbars.

• Transformers are used to step up or step down voltage levels in the power system.

• Switchgear is used to control, protect, and isolate electrical equipment.

• Cables are used to transmit electrical power from one point to another.

• Busbars are used to distribute electrical power within a substation or switchyard.

M20 Grade concrete ratio is 1:1.5:3 (cement:sand:aggregate)

• M20 Grade concrete has a ratio of 1:1.5:3 for cement:sand:aggregate

• This means for every 1 part of cement, 1.5 parts of sand and 3 parts of aggregate are used

• The total proportion is 1:1.5:3 which is commonly used in construction projects

Plaster can be checked by examining its color, texture, hardness, and adhesion to the surface.

• Check the color of the plaster for any discoloration or uneven patches.

• Feel the texture of the plaster to ensure it is smooth and free of bumps or cracks.

• Test the hardness of the plaster by gently tapping it with a tool or fingernail.

• Check the adhesion of the plaster by trying to peel it off the surface.

To calculate the bar bending schedule (BBS) of a ring, you need to determine the diameter of the ring, the number of bars required, and the length of each bar.

• Calculate the circumference of the ring using the formula 2 * π * r, where r is the radius of the ring.

• Determine the spacing between the bars based on the design requirements and the diameter of the bars.

• Calculate the total length of bars required by multiplying ...read more