Category: CIVIL Engineering interview Questions

When sleepers were added below the railway, lines the trains ran more smoothly and people fell asleep on their journeys.

When the 1000 kg are at rest, on Earth with gravitational acceleration 9.81 m/s2, 1000 kg equal 9.81 kN.

It has to do with the design of the bolts. The reason that head of the bolt is oval. The head of a bolt fit flush into the bar and set in opposing sets is so that a piece of dragging equipment will not shear off all the bolts in a joint but rather the just the nuts one side. As a result, if the hole were not oval on one side there would be no way to tighten or loose the bolts in a joint.

Aqueducts are built in areas where you have a bunch of motivated end users (like a town or group of farmers) at a low elevation in need of a more reliable source of water located somewhere fairly nearby at a higher elevation. The aqueduct builders construct a series of canals, elevated channels, and tunnels as required to get the water from the source to the end users. Some good examples:
a) Roman engineers built aqueducts throughout Italy and France from mountain water sources to serve city dwellers
b) Water-needy Southern California cities and farms are served by an aqueduct that brings them water from sources in Northern California
c) New York City is supplied by an aqueduct and tunnel system from sources upstate.
d) Inca farmers in coastal valleys built irrigation aqueducts from sources higher up in the Rockies
e) Native American cultures in Phoenix area built irrigation canal systems that diverted water from sources at higher elevations to irrigate their crops.

Cubic feet, Cubic yards, Cubic Meter

Some people call it an air pocket in the concrete or a void.