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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
A centrifugal motor is a motor that David Unaipon invented for his people but couldn't be created because he doesn't have enough money
Microhardness is a hardness test used to check lightweight metals and alloys. Sometimes referred to as micro-indentation testing, these test use very light loads to make a microscopic impression.
What are some topics for oral presentations?
You could do an oral presentation on an animal, disasters such as man made or a natural disaster, a favourite band/singer, a favourite movie or TV show.
Can commercial airplanes break the sound barrier?
The Concorde was a supersonic commercial airliner. However, due to flight accidents the Concorde is no longer in service. The typical cruise speed for a commercial jet is about 0.8 Mach. Of course, almost any plane with sufficient engines and built for speed can dive down and break the sound barrier---but it may not recover from this.
What is the definition of a unf thread size?
Unified National Fine as opposed to UNC - Unified National Course
Which is the biggest and most powerful warship?
Ticonderoga class of missile cruisers in the US NAVY is the most powerful
Nimitz-class is the biggest
HMS Daring, a Type 45 Royal Navy Destroyer is the World's most advanced
The most powerful and largest Battleship (ie: giant warship) is the IJN Yamato, which was 71,659 tons, and carried:
9 46 cm (18.1 in) cannon in three cannon turrets, the largest for any ship
6 155 mm (6.1 in) cannon in two 3 cannon turrets
24 127 mm (5.0 in) cannon
162 25 mm (0.98 in) Anti-Aircraft guns, in fifty-three 3 cannon emplacements, and one 6 cannon emplacement
4 13.2 mm (0.52 in) Anti-Aircraft guns in two 2 cannon emplacements
Plus 7 aircraft for 2 catapults
(The Iowa Class Battleships, the most powerful for the U.S., sported nine 16in guns)
What instrument measures the purity of Argon gas?
An argon gas analyzer measures the purity of Argon gas. The analyzer can be used to determine the actual content of Argon gas in a specific sample.
An inclined plane is one of the original simple machines and it is used to shorten the time and work used when you are moving an object.
Do mechanical engineers invent weapons?
I'm not near college, but I am fairly aware of these things... There is a career titled "Weapons Engineer", as there are different types of weapons and such, you would need different backgrounds in engineering.
Mechanical Engineering: This leans more towards hand-held weapons (handguns, assault rifles, etc.) but it can also mean mounted weapons (.50 calibers)
Electrical Engineering: This will lean more towards radar, radar jamming, smart weapons, etc.
Now the bigger your looking for (missiles, rockets) the more you will want to think about Aerospace Engineering...
I hope that, that had answered your question... but like I had said I'm not near college... I am in the 8th grade, but I want to do something of engineering or architecture so I am well read up on this.
What is the difference between AC machine and DC machine?
ac machines can run only in one direction but dc machines can run in both the directions depending upon the direction of current flow into it. If we change polarity of input supply we can reverse the direction of motion of dc machine
CommentThe above answer isn't altogether true, as it's very easy to change the direction of an AC machine. For example, to change the direction of rotation of a three-phase induction motor, the motor controller interchanges two of the three line conductors.
The main difference used to be that the speed of DC machines is easier to control, but that is a thing of the past thanks to developments in electronic motor controllers.
What are the sources of error in a bell crank lever experiment?
It must be ensured that the lever just touches the knob before completing the task or noting the readings
1. weight of spring balance and chain
Friction helps us by letting us grasp things so they won't fall. Without friction you can expect to have more car accidents, and a lot of random people falling because friction helps us walk. Also airplanes in a way use friction to fly.
no slaking in class
Is the Torque to fasten the same to unfasten?
The torque needed to loosen a bolt or joint is often much higher than the torque needed to put the bolt in in the first place. There is no set value difference between the two, unfortunately.
What is the Procedure to mesh a body in hypermesh?
There are two possible methods. One in which involves the resolvent of a solid from GEOM option. The second would involve manually setting a mesh plan. Manual mesh involves, a 2d form extruded/ spin converted to 3d.?æ Mesh is a 2d select, hypermesh is a 3d select.
How did work done by the steam engine compare to work done by horses?
the steam engine was quicker and stronger than hoses
The simplest of pumps. A vaned rotor rotates inside the pump body. The water spins to the outside of the pump rotor and is forced out of the outlet pipe. The differential pressure across the pump continuously reprimes it. Very common in vehicle cooling systems, power showers and in washing machines.
Free examples of interview thank you letters?
During a thank you letter interviewees will thank the interviewers for the interview. This should include specific details, the interviewers names, and express your interest in the position.
What is difference between centre and overhung position of crankshaft?
A center crankshaft has the crank located?æin the middle. An overhung crankshaft, also known as a side crankshaft, has it located to the side.
Explain the role of cad in IC design?
The role of CAD in IC design is to make it more affordable. It does this by speeding up the process.
Explain oxy- acetylene welding process?
Oxygen and acetylene tanks feed into your torch. When opened, the gases will mix in a chamber in the torch, then flow out of the torch tip. Using a spark lighter, they will ignite causing a flame. This flame can be adjusted to a neutral flame by moving the knobs on the tank regulators.
What is crane rocking clearance?
Crane rocking clearance refers to how much space is available for a crane to move. A specific amount of space is needed to use a crane safely.
What is the relationship between hardness and brittleness for iron?
the hardness of iron decreases with increase in brittleness in general..
however when the temp is increased, the elasticity increases and the brittleness reduces, it continues to show the increasing trend in hardness until a transition temperature, after which the hardness starts decreasing again.
