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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
What are three examples of common levers?
A claw hammer is a lever when using the claw to pull a nail. A crowbar or pry bar is also a lever. Automobile friction jacks are also levers. Your arm is a biological (biomechanical) lever.
What is carnot engine in thermodynamics?
A Carnot cycle representes a gas undergoing a theoretical - means it cannot be implemented realistically - thermodynamic cycle composed of 4 reversible steps (meaning you can go back and everything will be back to the state it was, or scientifically speaking, the entropy of the universe will remain constant):
1- isothermal expansion of the gas (working fluid) - heat is added from the surroundings to the working fuild and it expands at constant temperature;
2- isentropic expansion of the gas - the gas is allowed to expand and produce work;
3- isothermal compression of the gas - the gas rejects heat to the surroundings at constant temperature;
4- isentropic compression of the gas - the gas is compressed and work is need for that compression.
For ss welding which electrodes should be used?
This would depend on several variable such as: Welding process being used (SMAW, GMAW, etc). Specific type and grade of the Stainless Steel. The required tensile strength, ductility, and corrosion resistance. If you are welding pressure piping, the applicable ASME codes have a table in section IX. AWS D1.6 addresses structural applications. There are three basic types of Stainless Steels. Austenitic, Martensitic, and ferritic. Each has characteristics that differ from each other in the post welded condition. For a good selection of electrodes and their applications, your local welding supplier should have free reference books by various suppliers that will help. These are the same books we us to assist us in developing welding procedures to various codes and standards.
What are cable stayed bridges made of?
The primary building materials in cable-stayed bridges are steel, which is used in the cables and also as the reinforcing material in the concrete, which is the other primary building material.
Can you please send to me Turbine parts and function of each part shortly?
Non mechanical or mechanical Frisbee flying through the air?
a frisbee flying thought the air is mechanical
Inlet Valve is comprised of 2 words i.e. Inlet & Valve. Therefore Inlet Valve is that valve through which fuel or a mixture whose pressure in increased by reducing its volume in intaked into the cylinder.
WHAT IS COMPRESSION STRENGTH OF AISI 1045?
The AISI 1045 Medium Carbon Steel has a Shear Strength of 80 GPa.
What is the use of helical springs?
A spring apparatus is often used to figure out the force constant of a spring. It has a ruler, spring (with a circular platform to add masses on) and a needle (place at 0 on the ruler). Because force and distance are directly proportional, as you add masses and see the distance on the ruler you can easily figure out the force constant with the equation Fe = kx , where Fe = FG = mg
68,080 pounds depending on schedule and diameter give or take a few thousand pounds
What is the working principle of a hydraulic crane?
it is due to to the pressure and suction of water
Disadvantages of centrifugal compressor in gas turbine?
This relationship is the reason advances in turbines and axial compressors often find their way cutaway showing an axi-centrifugal compressor gas turbine.
How are robots used to make cars?
Yes, a car is a machine. Look at the definition of Machine. "any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks" A car definitely fits that description.
What is a description of an electric motor?
Is found in many appliances with moving parts like a vacuum cleaner or a blender. Changes electrical energy to mechanical energy
Uses the interaction between a spinning coil of wire and a magnet
Uses the interaction between a spinning coil of wire and a magnet
Is found in many appliances with moving parts, like a vacuum cleaner or a blender
Changes electrical energy to mechanical energy
Can you do marine engineering after diploma in mechanical engineering?
As you have completed mechanical Engineering it's good to choose your carrier in oil and gas field as piping engineering to get into the oil and gas industry You can approach some oil and gas consultancies or seabird engineering institute which is very popular globally . This is the only one engineering institute in India which teaches all about oil and gas field and the course fees is very cheaper compare to others.
Scope of piping Engineering is everlasting. All oil and gas industry needs piping engineers almost all oil and gas industries prefer seabird engineering trained and certified candidates to run its business smoothly
Purpose of the iron-carbon phase diagram?
to know what will be the crystal structure and physiacal and chemical properties of iron at known carbon percentage and temperature. provided that slow and uniform cooling rate is there and no quenching.
How do you calculate a screw conveyor spiral?
I'm still looking for how to calculate or calibrate, but found a couple neat videos about how the spiral conveyor is made.
SSC - Shaftless Screw Conveyors
Is the purpose of e7018 welding electrode for downhill direction only?
The designation E6011 means: E=electrode 60=60,00p.s.i.tensile strength as deposited 1= all position 1=coating make up
First of all, a stainless steel is a steel that has > 10.5% Chromium (Cr); this ensures development of a chrome-oxide that prevents further oxidation.
The 300 series of stainless steels differs from the 400 series in that the 300 series has both Cr and Nickel (Ni) - the 400 series has only Cr.
304 stainless steel has 18% Cr & 8% Ni.
316 stainless steel has 16% Cr, 10% Ni, & 2% Molybdenum (Mo). I believe this added Mo increases corrosion protection from chrloride-induced corrosion.
What is the difference between a knife gate valve a gate valve?
A Knife Gate Valve is used to slice through sludge /sewerage and a gate is used fro normal positive shut off
If you want to find the photo of Knife Gate Valve,you can enter to the link:http://www.kolinkcn.com/
What is tensile strength mean?
It is the strength in pounds per square inch of a material at which it will be pulled apart.
What is the difference between steel and stainles steel?
staisteel is made of a mixture of iron and nickel and chromium
Fatigue life is the number of cycles a structure part can take before it breaks. A cycle is when the stress reverses or changes about its mean value as happens during vibration for example. Usually fatigue life is expressed in number of cycles; for example a steel part of a given strength may have its strength reduced in half after 1,000,000 cycles due to fatigue.
