0
Engineering
Engineering is an art and profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.
5,839 Questions
What are the Basic concepts of Vernier calipers?
A Vernier caliper has many parts. Some of the main parts include an inside jaw, which performs measurements, the depth probe, which finds the depth, and outside jaws, which measure external lengths.
How can the direction of rotation of a DC shunt motor be reversed?
DC shunt motor can be reversed by changing the polarity of either the armature coil or the field coil.
Are engineers good communicators?
ck is very impotant for engg. Student like as facial expressions , gestures. Symbol etc.
Who was the inventor of the spinning machine?
my hairs
James Hargreaves invented the first Spinning Jenny in 1764. This invention greatly cut back the amount of work required to make yarn. Also one person could work eight or more spools at the same time by them selves, which helped many people earn more money.
Do nuclear engineers make bombs?
It can and it is Although U-238 is not very radioactive -- it's sometimes called depleted Uranium -- it is used as a "tamper" in the core of nuclear warhead. Its use as a tamper greatly increases the yield energy of the device. Wikipedia has a pretty good article to check out. Uranium 238 is not fissionable with thermal neutrons; uranium 238 cannot be used in bombs as fissionable, explosive material.
However as the final stage tamper of a hydrogen bomb the high energy fusion neutrons will fission Uranium-238, possibly generating 90% of the yield and a corresponding amount of the fallout of such bombs.
What is weld lap length of reinforced concrete bars?
when length of reinforcing bar is small and we have to provide longer reinforcement in that case the second bar is provided with proper overlapping with the first bar this overlapping is known as lap length.
the straight length of shall not be less than 12mm dia and 200mm length.
Why does a ceiling fan have only 3 blades?
Fans can have any number blades--even one! (but then you need a counterweight for balance). There are airplanes that have one blade for a propeller. There are many variables that figure into how many blades a fan has. Air velocity, noise, shape of the blade, length of the blade, material cost, vibration, etc. For airplanes sometimes they change 2-bladed propellers for three or four or more to get different flying characteristics.
What is the difference between vector and phaser diagram?
A(t) = Am sin(ωt ± Φ) representing the sinusoid in the time-domain form. But when presented mathematically in this way it is sometimes difficult to visualise this angular or phase difference between two or more sinusoidal waveforms so sinusoids can also be represented graphically in the spacial or phasor-domain form by aPhasor Diagram, and this is achieved by using the rotating vector method.
Ansh
What is the difference between aeronautics and astronautics?
Aerospace Engineering deals with the design, construction and science of aircraft and spacecraft. Aerospace Engineering is broken down into aeronautical engineering and astronautical engineering. Aeronautical Engineering is the science behind building aircraft within the earth's atmosphere and Astronomical Engineering is the science behind building spacecraft to go beyond earth's atmosphere.
What are the examples for the principle of transmissibility of forces?
car wheel moving until the breaks not applied
Who developed the idea of a central electric power station?
This would have to be Thomas Edison, who invented coal fired power plants to supply the electricity to customers using his electric light bulb.
There had been earlier coal fired electric plants to provide electricity for the earlier electric arc lights, but these were on a much smaller scale than Edison's.
Before that there were illuminating gas plants producing many different gases for home and business lighting purposes.
Note that the priority in all these cases was to provide lighting, not power for general use and the products could not be transmitted over long distances.
It was Nikola Tesla that invented the high voltage AC power plant (his first one used hydroelectric power from Niagara Falls, not coal) and for the first time enabled electricity to be transmitted over long distances from the supplier to the consumer.
Tesla first invented his AC system while he was an employee of Edison, but Edison rejected it as he did not want to make such expensive changes to his existing DC system in which he already had made a large investment. Tesla soon quit and was hired by Westinghouse, who soon gave him the chance to try his AC system in the Niagara Falls hydroelectric power plant. Tesla's AC system was soon demonstrated to require less initial investment and to operate more efficiently than Edison's DC system.
Edison continued to fight the change from DC power plants to AC power plants, including a propaganda publicity campaign proclaiming AC to be more dangerous than DC and thus unsafe for household use, But eventually AC won and Edison's systems gradually converted from DC to AC.
Why can't we use solar energy for distillation?
You have a misconception here as solar energy definitely can be used to perform distillations. However for more than trivial quantities large arrays of mirrors are required to concentrate the sunlight to get high temperature needed for the process to be efficient and practical.
Yes, a fan is a compound machine. This is because it is made up of several simple machines connected together.
How many photos can be stored on a 700 mb disc?
This can depend on which file type the photo is, how many pixels are in the photos and also the brightness and amount of colour in the photos. Lets say you have a 5 megapixel camera which makes it into a JPEG file, this would mean an average picture would be around 1.6MB. 700MB / 1.6MB = 437.5 Photos
Machines may aid in making work easier over a longer distance?
True. Machines do aid in making work easier over a longer distance.
What is the amount of power generated from a thermal power plant?
A joule is a watt-second. (To compare, a kilowatt-hour is 3.6 million joules.)
If a typical power plant produces 1,000 megawatts, it is producing 1,000 megajoules per second.
How do we adjust the voltage of a shunt generator?
The voltage is adjusted with a potentiometer that adjusts the field voltage through the voltage regulator.
Carbon. Carbon in higher quantities than .4 % are High Carbon Steels.
Who invented the first electric go cart?
The first electric streetcar was invented in 1875 in St Petersburg Russia by Fyodor Pirotsky. It was not fully used until 1880 and in 1881 the first commercial electric streetcar was unveiled by Werner Von Siemens.
Why does oil prolong he life of car parts?
All car engines have bearings in them, and if the bearings are not lubed constantly, the will get hot, and self destruct in minutes. Good oil ands oil changes are a must for good car life
POSSIBLY IN WATTS, LOS ANGELES COUNTY, CALIFORNIA??? DID YOU KNOW CHARLES MANSON WROTE A SONG FOR THE BEACH BOYS???
Is there a demand for materials engineering in the future?
is ther a demand for material engineering in the future
Why should a mechanical engineer study tecnical drawing?
Technical drawings are tools to transfer technical information between colleagues, customers and contractors. It is vital for an engineer to be able to interpret and understand the essence of the drawing and also convey information to others.
A good example is the interaction between the design and production department in a manufacturing organisation. The production engineer should be able to interpret the drawing and produce the required components of the required dimension and tolerance. Likewise the design engineer should be able to generate legible and comprehensive drawings that does not leave room for ambiguity.
