Explanation

A mile is a unit of distance.

It is equal to 5,280 feet or exactly 1.609344 kilometers.

1 km = 0.62137119 miles

0.62137119 miles ∼ 0.62 miles

∴ 1 km = 0.62 miles

Additional Information

Miles to Kilometres = Miles × 8/5 (Approximately)

Kilometers to Miles = Km × 5/8 (Approximately)

Explanation

Hertz (Hz) is the SI unit of frequency, representing one complete cycle per second.

Frequency measures how often a repeating event occurs in one second.

Explanation

Coping is the protective top layer of a masonry wall to prevent water penetration.

It also improves durability and provides a finished appearance to the wall.

Explanation

A baluster is a vertical post supporting a handrail in stairs or balconies.

It provides safety and aesthetic appearance by filling gaps between the rail and the floor.

Explanation

Active earth pressure occurs when soil tends to move away from a retaining wall.

It is calculated using the formula Ka = tan² (45 - ϕ/2), where ϕ is the soil’s angle of internal friction.

Explanation

Sea sand contains high salt content, which can cause corrosion of reinforcement in concrete.

Sand for construction is normally obtained from rivers, canals, and gravel sources.

Explanation

The point of contraflexure is where the bending moment in a beam changes from positive to negative or vice versa.

At this point, the bending moment is zero, and the curvature of the beam reverses.

Explanation

Bearing capacity is the maximum load per unit area that the ground can support without shear failure.

It ensures safe design of foundations and prevents excessive settlement.

Explanation

Intrados is the inner or concave curve of an arch facing the interior of the structure.

It is opposite to the extrados, which is the outer convex surface.

Explanation

Blasted stones are crushed and used in construction for roads, railways, and concrete.

They provide strength, stability, and durability in civil engineering works.