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Mechanical Engineering
Mechanical Engineering is a branch of engineering that encompasses the generation and application of heat and mechanical power and the design, production, and use of machines and tools. Mechanical engineering involves application of the principles of dynamics, control, thermodynamics and heat transfer, fluid mechanics, strength of materials, materials science, electronics, and mathematics.
10,989 Questions
This is a steel with magnetic properties and is used for low temperatures.
What is the ultimate tensile strength of 4335V low-alloy steel sheet?
Find out using knovel like youre meant to.
What is equivalent to IS 2062 Grade A at ASTM std?
What is equivalent to IS 2062 Grade A, IS 1239, EN-8, BS970, IS 1367 CL.4.6, IS 1875 CL.II to ASTM std?
How install Pro-E software without host id?
I installed Pro-Engineer software version wildfire 4.0. I need to edit edit <pro/e installdir>\bin\proev.bat an add add PTC_KEY=0.
But I can't find "proev.bat" file to edit, so when I open the software, it atomatically exits.
Please help me.
Thank you very much.
What is meant by the term welding and draw various welding symbols?
Welding is the process of joining two metals, usually involving a heat source. Welding symbols are the symbols used on part prints or assembly drawings to show size and type of weld, the specific welding process, and many other variables pertaining to that particular weld. A welding symbol looks like an arrow pointing to the location of the weld, with a horizontal line 'carrying' other symbols and numbers that describe how to make that weld. A picture of a welding symbol can be found when an image search is done.
Why steam turbine exhaust temperature rise during start up?
exhaut steam temperature raising due to cooling water inlet temperature raise vacuum pullying is not proper scale formation in turbine blades
What are the basic blocks of generalized instrumentation system?
basically an input is given to the transducer, which is the 1st basic block of instrumentation system. this transducer's o/p goes to the signal conditioning circuit whose o/p is then given to the recorder, analog meter, digital transistor, printer, controller, oscilloscope and the punch card.
What is adaptive control machining system?
The adaptive control is basically a feedback system that treats CNC as an internal unit in which the machining variables automatically adapt themselves to the actual conditions of the machining process.
What is difference between tube connector and tube adapter fitting?
A tube connector is the standard fitting that goes on a tube or hose.
A tube adapter fits to a tube or hose and enables it to connect to a fitting of a different size to its standard.
Can you conclude anything about the thermal expansion rates of iron and brass?
Brass expands roughly 1.6 times more than iron when heated to the same temperatures.
Logic valves serve as a multifunctional valve for controlling the direction, flow and pressure by controlling the pressure signals in a hydraulic system, at the same time providing protection to the hydraulic pump.
Yes for residential 3 stories or less BUT the new code just increased the height. Best bet ask the local inspector
What are two advantages of belt drives?
1. No lubrication is- required
2.Maintenance is minimal and infre- quent
How does cryogenic machining work?
Cryogenic machining means cooling down the cutting tool with liquid carbon dioxide or nitrogen to very low temperatures ( -78,5°C or -109,3°F and below). This enables a clean production process without conventional cutting fluid that is hazardous to both the environment and to health.
Why is there a delay when reporters give live news reports from far away countrys?
When you see that peculiar long delay, you can be sure that the live report is
coming into the local studio through a communications satellite link.
Radio (and TV, and light) does take time to travel from place to place. Normally, on earth,
the trips are so short that we don't perceive the delay, but when you start dealing with
signals that leave the immediate vicinity of the earth's surface, it starts to become noticeable.
If you've ever seen videos of conversations with the Apollo astronauts on the moon
during the 1970s, those are always slow and leisurely, because it takes radio (and light)
almost 1.3 seconds to make the trip between earth and moon. So if mission controllers
asked a question of someone on the moon, the soonest the reply could begin to be
heard was 1.3 seconds to get there + 1.3 seconds to get back = almost 2.6 seconds,
which was very noticeable.
The distance between the earth's surface and a geostationary communications satellite
is roughly double the earth's circumference. It does take up-link and down-link time
for a signal to be repeated through a satellite, and nowadays, it's not unusual for
a single communications path to include twosatellite hops before it gets to where
it's going.
And one more thing: Every time an analog signal (like a voice) is translated into
digital data, or a data stream is used to reconstruct a sound, the process takes time.
There's a very simple and intriguing way to see this. Make a cell-phone call to a friend
who's with you in the same room, and watch the delay through the cell-phone path.
How do you get the lift to work on vv3?
If I remember correctly, you need level 2 restoration. Place 3 adept builders on the lift and they will start building it. Once it's finished, wait until it rains. Immediately after it starts raining, place a villager on the lift. Wait for a while and be patient. Eventually, they will be able to get a fruit from the tree. Take another villager and place them on the fruit. They will either plant the fruit to make a tree, or deposit is as food, depending on how many trees you have. Hope this helps! :)
