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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
steam is created by vaporisation of the water on the ground or in a kettle.
What is a stage of an impulse turbine?
In an impulse turbine, the stage is a set of moving blades behind the nozzle. In a reaction turbine, each row of blades is called a "stage." A single Curtis stage may consist of two or more rows of moving blades.
What are some examples of second class lever?
1 wheel barrel
2 dolly
3 trailer
4 stapler
5 bottle opener
6 nut cracker
7 wrench
8 hole puncher
9 Achilles tendon
10 can opener
What is the tensile strenght of iron?
High tensile steel may have ten times the tensile strength of wood, and more than twice that of mild steel, but it would be a mistake to overestimate the importance of this single quantity, as Fuller seems to do
What is the word for a mechanical device used to lift people and heavy objects?
it depends on d type of wrk it is basically doing it can be called as a simple lifting machine if it exploits d very basic physics of load,fulcrum nd effort there r devices like single purchase crab, double purchase crab, differential wheel and axle ,etc which r used 4 d same applications
couple load is the combination of both concentrated and distributed loads.
What is the different between cheap cast iron and expensive cast iron?
The wall thickness and whether it has an ASTM certification
There is XHCI uncoated
Standard weight
No Hub
What is the formula for converting meters to miles?
Multiply meters (mts) by 5 and divide by 8000 to get miles (mls) i.e.
mls=mts x 5/8000
How surface treatment influences fatigue?
Surface treatment affects the endurance strength, which is used to calculate the safety factor.
Surface fatigue inevitably occurs for all materials in high contact-stress applications, causing part failure after thousands of repeated cycles. Failure is evidenced by pitting and eventually spalling.
Why does the largest heat loss occur in a condenser in regard to steam?
heat losses in condenser in percentage
What is the abrivetion of wpb in the ASTM A234 wpb and ANSI B16.9?
may be it stands for wrought piping fittings grade B or C or ... i said this according the title of this standard code but i'm not completely sure that it is right or not
askar_soltani824@yahoo.com
A normal white blood cell (WBC) count typically ranges from about 4,500 to 11,000 cells per microliter of blood. However, this range can slightly vary depending on the laboratory and individual factors such as age and overall health. Abnormal levels can indicate various conditions, including infections, inflammation, or blood disorders. It's important to consult a healthcare provider for interpretation of test results in the context of an individual's health.
What is the difference between splash lubrication and pressurized lubrication?
Splash lubrication like in small engines uses a dipper connected to the crank that " dips " into the oil on the down stroke and " splashes " it up and onto the engine parts on the upstroke. Pressurized lubrication uses a pump to push the oil through passages to the needed areas.
How the torque switch work in auma valves?
in the Auma valves torque switches are used to cut off the motor incase of excessive force due to jamming of valves or at the end positons failure of limit swtches, once the end positon is reached still motor is enrgised conditon due to limit switch problem it causes excessive torque on the worm by sensing its axial movement , it is transmitted by a lever and gear arrangement to a microswitch and it is adjsutable thorugh a spring force.
What is the derivative of a half to the power of x?
(1/2)x = 2-x = exp (ln 2-x) = exp( -x ln 2). Since d/dx exp(x) = exp(x), we can use the chain rule to find that:
d/dx (1/2)x = -(ln 2) exp(-x ln 2).
How do you calculate toughness?
Toughness is a term used to describe a material's resistance to failure, or its ability to absorb the energy of impact, if that is clearer. A couple of methods of testing toughness involve putting a (known) weight on a swinging arm, raising it a certain distance, and letting it swing down into a test piece of material into which a notch has been cut. This way a known amount of energy can be impressed against a sample of fixed dimension and a relative toughness demonstrated. In the physics department on exam day, we'd be given a stress-strain graph (or, more probably, the variables to plot the graph) and we'd "find the area under the curve" using integral calculus to discover an answer. The formula and the graphs (which cannot be put up here) can be seen by using the links to the Wikipedia articles. Additionally, a link is provided to a post on the Izod method of impact strength testing of plastics put up by MatWeb, which is a site dedicated to the properties of materials. Have a quick look.
All quantitative variables will be reduced including:
Internal energy
Enthalpy
Gibbs energy
Volume
Mass
Moles
All intensive properties will remain unchanged including:
Specific internal energy
Specific enthalpy
Specific Gibbs energy
Specific volume (and its reciprocal density)
Temperature
Pressure
Heat capacity
Elasticity
Conductivity
etc.
