0
What mechanical properties of a weld in carbon manganese steel is most affected if the heat input per unit length of weld is excessively high?
Wiki User
∙ 11y ago
Toughness
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Would the equator be affected if the oceanic conveyor belt known as thermohaline circulation were to stop?
The equator, which is the imaginary line that encircles the widest point of the earth at the same distance from both the north and south pole, is a geographic definition only. As such, it cannot itself be affected by anything. Imagine putting an imaginary rubberband around an orange. If you heat up the orange, nothing is going to happen to the imaginary rubberband. However, the climate of the orange as a whole would change, therefore the climate at the position of the equator would change.
Pratical example of fatigue?
It is a little difficult to find a simple example of fatigue. For most common items, there is no investigation into the cause of failure so we don't know what caused it. We simple through the part away and get another one. If the pedal on our bicycle breaks, we just throw it away and get a new one; no questions asked. The earliest example of fatigue failure is the failure of an axle. There are some much early examples but even going back to the beginning of the 20th Century, there were some train crashes that was due to failure of the axle or the axle-to-wheel joint. This is a common example because an axle is a long rod that is bent. So as the train rolls, the axle is bent one direction and then the opposite as it revolves. A train can travel for hundreds of miles and thousands upon thousands of revolutions. Also, the early axle/wheel designs had sharp corners that also contributed to fatigue failure as it raises the stress at the joint. I find another example of fatigue laying on the street. If you look around you will find lug nuts from a car's wheel. It will have the lug nut and the stud that it was threaded on both together. The stud will be broken and inside the nut. The fracture surface of the stud or lug will have features that signify a fatigue failure. You may have to inspect it under a 10X magnifying glass to see this (or ask an engineer to show you). This failure of the lug nut experience a fatigue failure either because of repeated torquing of the nut when installing the wheel OR by the same factors as described about the train axle/wheel failures. Maybe the wheel is warped and it is applying high repeated loads to the lug nut. This is a practical example but may require someone who can identify it as a fatigure failure. Some websites will give as a simple example of fatigue failure is the bending of a paper clip or a wire coat hanger. This is NOT FATIGUE. When you bend a paper clip or coat hanger back and forth you are Yielding the part or deforming it permanently. Loads that produce fatigue failure do not bend the part; the load just applies stress and then relieves the stress. When you bend a coat hangar back and forth you may feel heat at the bend---that indicates the properties of the metal is being affected by other means. This is not Fatigue.
What is Central tendecy?
There are three statistical measures of "central tendency" - mean, median and mode. Combined, they give a picture of how close the data values cluster around a single "average" value. Normally, when someone talks of AVERAGE they are talking about the MEAN - where you add all the values and divide by the number of data points. But that value can be greatly affected by extreme values (e.g., the Mean of the following numbers: 3, 4, 4, 5, 4, 3, 27, 4, and 4 would be skewed by that one value that is not close to most of the others). The MODE of the numbers I gave, however, is the value that occurs most frequently - 4. The MEDIAN, the point where half the values are higher and half are lower, would also be 4. So, you see, the Central Tendency would be toward the value 4 and there is a strong Central tendency in this set of values. You could have a different set of numbers (e.g., 3, 27, 118, 11, 2, 963, 48) and while you could calculate an arithmetic mean, you could see that it wouldn't be too useful since there is no real Central Tendency of the data.
What is the difference between suction lift and suction head?
Suction lift is only negative. Suction head is positive or negative.Suction head is the distance between the surface of the liquid being pumped and the centerline of the pump. It can be positive or negative, and it can be affected by pressure or vacuum on the surface of the fluid. A negative suction head is also called suction lift.Example 1: A D/A under 15 psig is set 20 feet above the feed pump the effective suction head is 54 feet. (15 psig is equivalent to 34 feet of water).Example 2: A Condenser hotwell under 28 inches of vacuum (Hg) is set 16 feet above the suction of a propeller pump. The effective suction head (lift) is -15 feet.* (28"Hg = - 31 feet of water)Example 3: A sump pump is set 4 feet below the surface of the well. The effective suction head is 4 feet.*Note: Suction lift is only effective to a maximum of 21 feet, and 15 feet for hot water depending on temperature and pump slip.
What is the maximum rpm of a gas turbine engine?
Typically 3600 rpm for 60 hz production. Above answer is not very specific. The maximum RPM of a turbine generally depends on the maximum diameter of the rotating element. For example a large 240MW gas turbine will run at approximately 3000 RPM whereas a car engine turbo can run at 100 000 RPM and above. The limiting factor is that the blade tip velocity must stay below the speed of sound. On one rotation of a big turbine, the circular distance travelled by the blade tip is much further than the distance travelled by the blade tip of a very small turbine, so the RPM on the bigger turbine must be lower in order to stay below the speed of sound. The speed of sound is variable depending on air density, which is in turn affected by air temperature and altitude, so the blade tip velocities on most units run well below the speed of sound so that they can operate under various ambient conditions. Many turbine companies experiment with super-sonic blading as the air compressor sections on gas turbines are much more efficient at higher RPM and you could get significantly more output power with better air compression, but (I believe) that all commercial and industrial engines are sub-sonic.
How does crystalinity affect different polymer properties?
Mechanical properties are affected significantly.
How do Hawaii island affected by mechanical weathering?
how is hawaii affected by mechanical weathering
Which properties of matter are affected by heart?
The 'heart' does not have any affect on the properties of matter.
What properties of matter are affected by physical changes?
The properties of matter that are affected by a physical change is for example, there is a house then it gets destroyed that is a physical change.
Why aren't properties affected by changes in temperature and pressure?
The properties of all materials are markedly affected by temperature and pressure changes. This is false.
What properties of matter are affected by a physical change?
The properties of matter that are affected by a physical change is for example, there is a house then it gets destroyed that is a physical change.
What are waters properties affected by?
Temperature and pressure.
Are properties affected by changes in temperature and and pressure?
False
Who was affected by the mechanical corn picker?
If you must know, the mystical "children of the corn" were greatly affected by the loss of their homes.
What properties of matter are affected by heat?
All properties of matter is affected by heat. Only some solid things arent much affected by heat because their molecules are tightly packed and sticked strongly like diamonds and other solid.
Is this true or false properties are not affected by changes in temperature and pressure?
false
Are Chemical and physical properties affected by the environment in which the substance exists.?
yes
