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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

How do you make your car exhaust last longer?

make sure your car isn't to low because the exaust might scratch the ground and brake

What is the function of a piston rod?

It connects the piston to whatever the design calls for the piston to push or pull on.

In a combustion engine, the piston rod connects the piston to the crankshaft, turning linear reciprocating motion into rotary motion.

Which acid is used for heat exchanger tube cleaning?

Depend upon material of construction...

If SS u can use HCl but immedeatly wash it by NaOH and clean cold water.

Definition of a hardy spicer coupling?

A hardy spicer is a universal coupling as found on vehicle drive shafts and they are fitted with needle bearings

What is the velocity of water in water jet high pressure pump?

What size nozzles? What is the GPM rating What is the available pressure What lenght of the hose (fricton losses)

What is a cam mechanism?

A cam is an elliptical or tear-drop shaped form mounted to a rotating shaft. It is used to transfer rotating motion to linear motion. As the shaft rotates, the cam pushes on a rod that moves it back and forth as the rod follows the contour of the cam.

What is the role of nitrogen in welding?

AnswerNitrogen is used to prevent porousity in the welding member by preventing oxygen and air from entering the molten metal during the welding process. Other gases are also used for this purpose such as Argon, Helium, Carbon Dioxide, and the gases given off when the flux burns away during SMAW (stick) welding.They provides a shielding effect which make a barrier between the outside oxygen and molten metal.The formation of oxide reduce the strength of the weld.

What will happen if you stop centrifugal pump delivery valve in running condition?

if delivery of centrifugal pump is stopped and and pump is running then suction will be stopped and no flow will take place there fore fluid in side the pump will be heated up and motor will be overloaded and finally will be short circuited.

Introduction of chip thickness ratio and shear plane angle during machining?

shear plane angle is Eric siangco + hulian lastontas = shear plane angle

What is the youngis modulus of rubber?

That depends on the hardness (durometer) of the rubber. It can be quite low and range from 100 psi to over 1000 psi. If it is very thin, then since it is nearly incompressible (poisson ratio approaches 0.5) then the modulus increases to a much higher value, depending on thickness , and can vary from 1000 psi to 10000 psi in general, and approach over 300,000 psi in the limit.

You need to know the dimensions and durometer.

What is the meaning of head in fluid mechanics?

Head is the height of the fluid above the point you are measuring.

True or false. Mechanical waves bring energy from the sun.?

False. The energy from the Sun comes in the form of electromagnetic waves. Those are not mechanical waves.

What is the purpose of a paint thickness gauge?

A paint thickness gauge will allow you to find out the thickness of the paint you are using. This means that when this is necessary for particular tasks that you have a good tool to help you.

What is equivalent to iso 11092 in astm std?

ASTM F1868 is not identical but very similar, D1518 is also similar

Technical advantage of leaf spring in bogie suspension?

we can put more load on the vehicle which is fitted with Bogie suspension compare toother suspension systems.

How partial differential equations are used in medicine?

Partial differential equations can be used to model physical systems over time and so can for example describe how you walk. In such an application a faulty stride can be found by comparing a patient's walk with a 'normal' walk.

In isometric projection how to draw pentagon?

Firstly Draw a pentagon and enclose it in a square. Then draw an isometric scale. With isometric reading draw the square first on 120degree axis, reduce the pentagon sides on isometric scale and plot it on the isometric square

Why most of the heat exchangers are made use of forced convection?

Better heat transfer than natural convection. When compared to water or liquid cooled heat exchangers, the argument could be made that air is a cheaper cooling medium.

What two stroke mix chain saw?

i was looking for the same answer and found this website .

http://www.repairspot.com/two_stroke_fuel_mixture_ratio.htm