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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
Dimensions for a 15 KT windsock?
3.2.2 Dimensions. The minimum effective length and the throat end opening diameter of the fabric windsock are as follows: a. Size 1 ‑ Eight feet (2.5 m) in length and 18 inches (0.45 m) in throat diameter. b. Size 2 ‑ Twelve feet (3.75 m) in length and 36 inches (0.9 m) in throat diameter. The taper or the fabric windsock from the throat to the trailing end must be designed to cause the windsock to fully extend when exposed to a wind of 15 knots (28 km/hr or 17 mph).
What is the difference between transverse lateral and longitudinal directions?
what is difference between lateral and longitudinal?
What is a free flow exhaust system?
it is an exhaust system installed in trucks to make you have better gas mileage. it increases your mpgs at least 5 mpg. it usually is not used in cars because there aren't many places under the hood that it can be stored. In trucks, it is installed above the engine, but you can also store it inside of other gaps throughout the engine. Cars dont have large gaps in their engine, so it cant be installed in there. Other than increasing your gas mileage, it also makes it run quieter.
In regards to the above answer.........that is not really accurate.
Actually, A free flow exhaust is a type of system installed in vehicles for increased power and a sporty look.
They are designed to remove engine emissions more efficiently than standard exhaust systems.
Free flow exhaust systems are designed for looks and increased efficiency and power in vehicles.
They are typically made of 100 percent stainless steel, which offers a nice sporty look.
They weigh less than standard exhaust systems, which helps account for increased fuel economy and improvement in acceleration.
Exhaust systems are used for removing spent gas from a vehicle's engine; therefore exhaust systems play a role in engine tuning and performance.
A free flow system allows the spent gas to exit the vehicle more efficiently by changing the pipes used in the system and installing an inter-cooler between the engine and the exhaust.
With a free flow exhaust system, a smoother removal of spent gas is offered. Because of this, vehicle owners notice an improvement in the overall way their vehicle runs.
These systems promote better gas mileage and increased acceleration as well.
Transients can be currents or voltages. They occur momentarily and fleetingly in response to a stimulus or change in the equilibrium of a circuit.
Is there any table or formula for relationship between pipe class and pipe schedule?
Please visit below address.
http://www.aquatext.com/tables/pipepres.htm
What are reasons for over speed tripping of steam turbine genarator in a combined cycle power plant?
wHAT??
What is solar air conditioning?
Solar air conditioning refers to any cooling system that uses solar power. It plays an increasing role in energy-plus buildings and zero-energy design which is used in demonstrating and developing new technology innovations.
What is the density of marine grade plywood?
Marine grade plywood has a density of 300 to 400 kilograms per cubic metre, depending on the type.
( I found this answer on google inside 20 seconds, by the way. Learn how to use the web, guys!)
What are the characteristics of titanium?
Answer Titanium is a great alternative for structural material in terms of weight and strength. Titanium is lighter than Steel and much stronger than Aluminum. It has a low heat transfer rate, which makes it useful for high-heat applications. The one major draw-back with titanium is that it retains heat during maching of part during manufacture due to its low heat transfer rate. Titanium has to be machined at 1/5 the rate of steel, even with plenty of coolant applied to the cutting tool. This is one reason a Titanium part is more expensive; if it takes 5 times longer to machine a part, it will be 5 times more costly. The other reason is that Russia has a monopoly on the titanuium resources. Someone asked me which part would be lighter if made for the same load: Steel, Titanium or ALuminum. I analyzed a simple rod under an axial load and determined the minium size of the optimized rod then calculated its weight. The Titanium rod came out 1/3 lighter than the Steel rod. For bending or other load applications, this ratio will vary. The strength ratio can easily be found by ratioing the Young's Moduls and the unit weight. Fatigue-- A few years ago, Titanium did not have very good fatigue properties. The standard titanium alloy was Titanium 6Al-4V. The fatigue S/N curve of this alloy is very steep; it does not flatten out at the higher cycles as Steel S/N curves will do. However, new alloys have been developed that have much better fatigue properties.
What is the definition limition?
The word limitation means there is a restriction to something. If you cannot swim, you may have limitations when it comes time for a family reunion at the lake.
Define elasticity and flexibility?
An object is said to be elastic if it has the ability to return to it's normal state after being stretched or squeezed. Flexibility on the other hand is the ability to bend easily without breaking.
With zero nose radius, the leading cutting corner of the HSS (high speed steel) cutting tool comes to a point. Cutting a surface with a pointy tool gives a non-smooth surface finish. Also, when cutting steel, tremendous pressures are generated at the tool tip. A tool tip that comes to a point is weak at the point and the tip can fracture easily. Unfortunately, this tool fracture makes an uncontrolled, new shape on the cutting edge that often wears really fast, and/or leaves a bad surface finish on the part. With a 2mm nose radius, instead of coming to a point, the cutting edge of the tool is rounded. One result is the same difference you would get in smoothing frosting on a cupcake with the tip of a knife (sharp tip) and smoothing the frosting with the end of a spoon (rounded tip). The rounded tip gives a far smoother surface finish. Also, instead of all of the force being pressed against a sharp tip, the 2mm radius distributes force across a wider edge, making a far stronger tool tip that won't break down nearly as readily as a sharp tip would.
Why dont you have to use coolant while machining cast iron?
As far as i know, coolant is not required while machining cast iron because, carbon in cast iron is present in the form of graphite (which is a cooling agent - self cooling). Moreover the carbon content is high in cast iron.
What are the parts and components of a cordless electric drill?
There are only a few parts and components that separate a cordless electric drill from a corded electric drill. Having a battery instead of a cord is the biggest difference.ÊÊ
It is a good low temp gas to replace R12. Also known as 401A is a blend of refrigerants (22-152A-124). It is a good low temp gas to replace R12. Also known as 401A is a blend of refrigerants (22-152A-124).
What is selection criteria for relief valve?
The selection criteria for relief valves is based on a number of factors. Some of them include size, design and the operating characteristics among others.Ê
How many moving pieces are in a grandfather clock?
There are three main moving pieces in a grandfather clock. These are spires, weights and the pendulum and need to be handled carefully when moving the clock.Ê
What is a non projective drawing?
A non projective drawing is a form of objective drawing. Projective drawings reveal the underlying personal structure of an individual.
What is the function of balancing line in a centrifugal pump or compressor?
The balancing line is a transmission line consisting of two conductors of the same type, that are grounded to the compressor's circuits and to the ground and helps keep external noise down.
What is the ultimate tensile strength of mild steel. Show me the stress and strain diagram?
410 n/mm2
Difference between slip and cross slip?
Both of these fall under science materials. The slip will happen when there is a dislocation on the slip planes and the cross slip will occur when the screw changes the planes.
Concept of hybrid machining process?
"Hybrid manufacturing processes are based on the
simultaneous simultaneous and controlled interaction of process and controlled interaction of process
mechanisms and/or energy sources/tools having a
significant effect on the process performance"
