Nagarjuna Construction Company Assistant Engineer - Civil Interview Questions and Answers

The density of cement varies depending on the type of cement used.

• The density of ordinary Portland cement is around 1440 kg/m³.

• The density of white cement is around 1300 kg/m³.

• The density of rapid hardening cement is around 1250 kg/m³.

• The density of low heat cement is around 1200 kg/m³.

• The density of high alumina cement is around 1400 kg/m³.

To check a window, inspect its frame, glass, and hardware for any damage or wear.

• Check the frame for cracks or warping

• Inspect the glass for chips, cracks, or fogging

• Test the hardware to ensure it opens and closes smoothly

• Check for any gaps or drafts around the window

• Look for signs of water damage or mold

• Consider the age and condition of the window

• Consult a professional if unsure about any issues

Slab steel reinforcement typically uses 8mm to 16mm diameter bars.

• Slab steel reinforcement typically uses bars ranging from 8mm to 16mm in diameter

• The choice of diameter depends on the span, load, and design requirements of the slab

• Thicker bars are used for heavier loads and longer spans, while thinner bars are used for lighter loads and shorter spans

The cost of 1cum concrete work depends on various factors such as the type of concrete, location, labor cost, etc.

• The cost of 1cum concrete work varies depending on the type of concrete used, such as M20, M25, etc.

• The location of the construction site also affects the cost of concrete work.

• The cost of labor is another factor that affects the cost of concrete work.

• Additional costs such as transportation, taxes, and permits may also be included in the total cost.

• For example, th...read more

Deduction rules for plastering in civil engineering

• Deductions are made for openings like doors and windows

• Deductions are made for thickness of plaster

• Deductions are made for uneven surfaces

• Deductions are made for wastage of material

• Deductions are made for scaffolding

• Example: If the area to be plastered is 100 sq. ft. and the area of openings is 20 sq. ft., then the net area for plastering will be 80 sq. ft.