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Civil Engineering
Civil Engineering is a profession of designing and executing structural works that serve the general public, like houses, buildings, roads, etc. A Civil Engineer is an engineer trained in the design and construction of public works, such as bridges or dams, and other large facilities.
4,921 Questions
Explain the Principle of Equilibrium and Free Body Diagram?
System is in the equilibrium if all the forces (external and reactional - internal) are in the equilibrium - resulting force is zero vector.
Free body diagram is drawn for each body of the mechanical system. The body is disconnected from the system and contacts (sometimes called joints) are replaced by reactional forces. Then for each body equations of equilibrium can be written based on the principle of equilibrium.
Why has a person to bend down while carrying a load on his back?
Due to the added weight the person carrying on the back,normal centre of gravity of the combined body weight and the carrying weight shifted to new position.As a result a moment acts on the body of the man who is carrying the weight.To balance the moment the man needs to bend to achieve the stable condition.
What are disadvantages of self compacting concrete?
One of the disadvantages of self-compacting concrete is that it can be quite costly. When it is mixed with other forms of concrete it can break down over time.
What is bending moment and torque and its difference?
• The turning effect produced by a force on a body is called torque. It is calculated
as force multiplied by perpendicular distance.
• A couple is a special case when there are two equal but opposite forces acting on
a body that rotate it.
What is the oldest known Arch Bridge?
It's the Mycenaen Arkadiko in Greece, built in 1300 B.C. It has a tiny arch in its middle. A more impressive but more recently built bridge is the Ponte Fabricio in Rome. It was built in 62 B.C.
Types of stairs in construction?
According to it's construction, stairs are categorized as follows: 1. Brick Stairs:-
- Brick stairs used for external steps & stairs.
2. Stone Stairs:-
- These are very expensive; and are rarely used.
3. Concrete Stairs:-
- These are widely used in all types of buildings. These are strong, fire resistant and make possible a wide range of forms.
4. Timber Stairs:-
- These are economical & lightweight. Commonly used in domestic buildings.
9.87 atmosphere 24.61 feet of mercury [0 °C] 295.3 inches of mercury [0 °C] 1000 kilopascal 7500.6 torr 145.0 pounds/square inch
Formula for calculating cement consumption for M20 grade nominal mix concrete?
M20 = 1:1.5:3
Volume = 1+1.5+3=(5.5 parts )
Total volume ingredients for using 2omm jelly =1.57
Volume of broken stone Require = (3/5.5) x 1.57 = .856 Cum
Volume of sand Require = (1.5/5.5 ) x 1.57 = .471 Cum
Volume of cement = (1/5.5) x 1.57 = .285 Cum
= .285 x1440 = 411 kg
= (8.22 bag )
For 1Cum of M20 ( 1:1.5:3 )
20mm jelly = 0.856 cu.m
sand = 0.472 cu.m
cement = 8.22 bag
Arguably the longest bridge is the Bang Na Expressway, in Bangkok, Thailand. It is 33.5 miles long (54 km), but is not considered a bridge because it does not cross a single body of water, instead crossing a river and canals.
The longest bridge running over a single body of water in the world is now the Jiaozhou Bay Bridge in China. 42km in length, it links China's eastern port city of Qingdao to the island of Huangdao. The bridge cost over $1.4 billion to build and was completed in mid-2011.
How many dams in Pakistan and what are their names?
There are 14 dams in Pakistan. They are:
-Akhori Dam
-Donhngi Dam
-Ghazi Barotha Dam
-Gomal Dam
-Gomal Zam Dam
-Hub Dam
-Kalabagh Dam
-Karoonjhar Dam
-Khanpur Dam
-Mangla Dam
-Mirani Dam
-Shakidor Dam
-Simly Dam
-Tarbela Dam
Other names that came up under 'Dams in Pakistan are':
-Guddu Barrage
-Indus Basin Project
-Rawal Lake
-Sukkur Barrage
http://wiki.answers.com/What_are_the_names_of_the_various_dams_in_Pakistan#ixzz19cbuQFaG
What is the development length in concrete?
Development Length is the shortest length needed for reinforcing bar so that the stresses can induced in the bar can increase from zero to the yield strength of the said bar. The development length is a function of the bar size, yield strength, concrete strength and other factors such as coating of the bar. Also, the development length of a bar is dependent to whether the bar is in tension or compression. Tension development lengths are larges than compression development lengths because in compression, the reinforcing bar gets some help from the concrete, while in tension it does not.
Who is Pierre Charles L'Enfant?
Pierre Charles L'Enfant was a French born, civil engineer who designed the plans of Federal City, now known as Washington, DC.
Pune university engineering revaluation results?
Looks like .Even the Vice Chancelor does not know, 3 months have passed !!
There are a lot of qualities that help individuals achieve their ambitions. I think the two most important are dedication and discipline. You have to always do that little extra and be disciplined enough to not make mistakes.
What does a yellow marker mean?
It all dends on the kind of map your using. Yellow usually means coution. If you look at the legend on a map, it will tell you what all the colors mean.
What is thew frost line depth in Ottawa?
The frost line depth for the Ottawa-Montreal area ranges from 1.4m to 1.5m below surface elevation.
What is an example of a substitutional alloy?
An example of a substitutional alloy is sterling silver, which is a mixture of silver and copper. In this alloy, copper atoms replace some of the silver atoms in the crystal lattice structure, resulting in a material with improved strength and durability compared to pure silver.
Why are the structures of bridges made from reinforced concrete and steel?
Generally, because concrete has massive compression strength and steel has incredible tensile strength. Combined, they make amazingly strong structures.
Responsibilities of civil engineer?
Civil engg is most basic branch of engg.
It direcly deals with the one of the basic need of a society...
Being a civil engg..lot of responsibilities u have to take..
e.g.If u r constructing a building, safety of several people who will reside there will be on ur design..in ur work..Doctor at a time takes risk of only one person's life...here everyone is dependent on ur abilities n skills...
So its very important to be responsible about ur job...
Advantages of a tilting level?
it does not need the precise set-up procedure to make measurements and thererfore makes working with it easier.
