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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 is the opposite of vacuum?
== == The opposite of a vacuum is a volume of matter.
the opposite of a vacuum is a volume completely filled with matter... a space with no empty spaces within it...
the given name for which being Plenum...
What is the purpose of individual units or component and how do they interact?
18. Component Description and application
Relay Relays are a special type of switch which is turned on and off by an electromagnet. When a current flows through the coil an electro-magnetic field is set up. The field attracts an iron armature, whose other end pushes the contacts together, completing the circuit. When the current is switched off, the contacts open again, switching the circuit off.
A useful property of relays is that the circuit powering the coil is completely separate from the circuit switched on by the relay. For this reason relays are often used where a safe low-voltage circuit is being used to control a high-voltage circuit.
Contactor A contactor is an electrically controlled switch used for switching a power circuit. A contactor is activated by a control input which is a lower voltage / current than that which the contactor is switching. Unlike general-purpose relays, contactors are designed to be directly connected to high-current load devices, not other control devices
Capacitor Capacitors store and discharge electrical current. They're made from 2 parallel metal plates separated by an insulator (dielectric) applications include;
Smoothing rectified alternating current voltages into steady direct current voltages
Blocking direct current signals whilst allowing alternating signals to pass
Filtering out unwanted portions of a fluctuating signal
Timing applications
Storing charge to keep a transistor turned on or off
Sensor A sensor is a type of transducer. There is a massive range of sensors Direct-indicating sensors, for example, a mercury thermometer, are human-readable. Other sensors, such as thermocouples, only produce an output voltage or other electrical output which must be interpreted by another device (such as a computer).
Resistor Resistors resist or 'slow down' the current in a circuit by acting against the flow of electrons.
hope this helps your NVQ work
An Automatic Power Factor Correction (Controller) panel is used to Save Energy by consistently maintaining higher power factor. Low Power Factor leads to poor power efficiency, thereby increasing the apparent power drawn from the distribution network. This results in overloading of Transformer, Bus bars, Switch gears, Cables and other distribution devices within the Industry or consumer area.
With an APFC the energy producer can:
- Avoid Penalization for lower power factor.
- Enjoy incentives for higher power factor operation being extended to Industries by some Electricity Boards/ Companies.
- Optimize the connected load for improved plant load factor.
- Avoid manual disruption.
- Avoid high current consumption losses.
- Improvement in voltage regulation.
- Decrease Maximum Demand KVA, thus avoiding penalty and Demand Charges.
What is the average width of a bathroom entry door?
2m or two metres
Doors come in a variety of sizes that are considered to be standard widths and heights. There are door for interior doors, exterior doors, closet doors, home doors, mobile home doors, business door, and double doors. Those are just a few. The best way to find the average size of a door for a specific structure is to request information from a retailer in the business of doors because the information on measurements can be infinite.
That requires some detective work.
If you know where it is in a circuit, you might be able to figure out its function by context (seeing what it's connected to and what it might do).
You might be able to figure out the manufacturer by looking at subtle details of the package size and shape.
If you have the equipment, there are ways to disassemble and reverse engineer the chip and see the circuitry through a microscope to figure out its internal schematic.
When stress stretches an object it is called?
When stress squeezes an object it is compression. When stress stretches an object it is called tension. The process by which the shape of a rock changes because of stress is called deformation.
Is it necessary to use a torque wrench to repair a car?
There are differences in torque wrenches. One among the wrenches is the click-type torque wrench. It is an easy to handle kit. While applying the wrench and when the torque reaches the desired limit, the device automatically"clicks". This wrench could help you with providing the right amount of torque to be applied. Twisting of torque marks the desired torque to be applied.
What is the advantage of a drainage system?
If you don't have proper drainage it will drown the plant and also cause mold and such and rot the roots.
What is the difference between single core and multi core wires?
Single core has one single piece of metal wire, maybe copper or aluminium, with insulation around it. It is not very good if you want the cable to flex and bend as it is more likely to just bend and stay there in the new position. Multiple-strand cable has lots of thin wires and this makes it more flexible and likely to spring back
Why do engineers use the scientific method?
The scientific method is beneficial for a variety of reasons. Some of these are:
- The steps are clear, so the experiment can always be repeated
- Experiments are controlled
- Allows the results and work to speak for itself
- Has a clear objective and minimizes bias
What is waste water management?
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Is a system for reservation just like in hotels, restaurants, flight reservations to insure your needs.
Why is the suction pipe of vapour compression refrigeration system insulated?
To minimize sweating of the air around the pipe. When the air comes in contact with a cool surface, its water vapor condenses!
How does temperature affect the physical properties of petrol?
An increase in temperature will reduce the density, reduce the viscosity, reduce thermal conductivity, and increase the specific heat capacity.
A decrease in temperature will have the opposite affect.
A bridge is made of what metal?
The material of choice is stainless steel, because of its cost, abundance, strength, and reliability.
What is void main in C programming?
The main function in C serves as the entry point of your application. A C program is not valid without a main function.
There can only be one main function in your program, but you may use a choice of prototypes:
int main (void);
int main (int argc, char* argv[]);
You use the first version when your program has no need for command line arguments (also known as command line switches). The second version passes the full command line in the argv argument as a null-terminated array of null-terminated strings. The argc argument holds the count of strings in argv and is always at least 1 since the program name is part of the command line (stored in argv[0]). Any switches passed to the program will be found in argv[1] through argv[argc-1]. The last argument, argv[argc], is always the null-terminator (a pointer to null).
The return value allows you to return an integer to the host environment. Typically you will return 0 to indicate success and -1 to indicate failure.
The void main (void); prototype is allowed in most implementations of C (but not in C++). This simply indicates no return value is expected. However, the prototype is non-standard and if your program makes use of the exit() function to terminate, your program will return whatever value you pass to the exit() function.
Your implementation of C may also allow additional prototypes, however only the first two shown above are standard across all implementations. For portability, it is best to use one of these at all times.
How much does an architectural engineer make an hour?
An architecual engineer makes around 630,000 a year.
75 atmospheres of pressure is 1125 pounds per square inch. A balloon would be unlikely to withstand this pressure.
What is the timetable for first year engineering backlog papers?
You will have to contact your professor or the admissions department to find this out. Some former students may also have the information.
GDP (nominal)
In the world:
1. USA
2. China
3. Japan
4. Germany
5. France
6. United Kingdom
7. Brazil
8. Italy
9. Canada
10. India
11. Russia
12. Spain
13. Australia
14. Mexico
15. South Korea
16. Netherlands
17. Turkey
18. Indonesia
19. Switzerland
20. Belgium
In Europe:
1. Germany
2. France
3. United Kingdom
4. Italy
5. Russia
6. Spain
7. Netherlands
8. Turkey
9. Switzerland
10. Belgium
11. Sweden
12. Norway
13. Austria
14. Denmark
15. Greece
16. Finland
17. Portugal
18. Ireland
19. Romania
20. Ukraine
GDP(PPP)
In the world:
1. USA
2. China
3. Japan
4. India
5. Germany
6. Russia
7. United Kingdom
8. Brazil
9. France
10. Italy
11. Mexico
12. South Korea
13. Spain
14. Canada
15. Indonesia
16. Turkey
17. Australia
18. Taiwan
19. Iran
20. Poland
In Europe:
1. Germany
2. Russia
3. United Kingdom
4. France
5. Italy
6. Spain
7. Turkey
8. Poland
9. Netherlands
10. Belgium
11. Sweden
12. Austria
13. Switzerland
14. Greece
15. Ukraine
16. Czech Republic
17. Norway
18. Romania
19. Portugal
20. Denmark
What are compound pulleys used for?
Compound pulleys are used in a similar manner to a gearbox. You can select the ratio to suit the load and the power source. With the correct pulley combination one man can lift 10 tons from a truck onto a ship without motorised assistance.
Can people with developmental dyslexia go for engineering?
I knew a mechanical engineer to told us he was dyslexic. He worked a bit slowly and checked his work.
