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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
because it is only called motor oil by morons who don't know the true difference between a motor and a engine your right it should never be called motor oil unless it is a dc motor that has oil in it but for a engine ran auto it is engine oil
What is honing of cylinder liners?
The honing equipment used has been manufactured by "Chris Marine". The head of the honing device consists of four synchronized stones. For the initial honing diamond stones are used to break up the hardened surface in the scuffed areas. For the main honing very coarse and hard stones are used to produce a very desirable rough surface all over the liner.
The advantage, especially for the 2-stroke engines, is possibility to save the liner after a seizure, scuffing or blow-by or even to eliminate the ovality of the liner. Another advantage is, that it is possible to machine a rough linerwall to obtain a well oiled surface.
Where would one purchase a rotary tool?
Rotary tools can be purchased from any home improvement store. These stores include stores such as Home Depot and Lowes. The tools can also be found online on sites such as Amazon.
What is the difference between mild iron and mild steel?
Iron is the pure element, mild steel, or any steel is iron with a little bit of carbon added. The iron becomes mild steel, steel or any other type of steel depending on how much carbon is added to the iron.
Would you use normal quality material in place of boiler quality for vessel plates?
No. There is a specified standard for vessel plates due to safety reasons.
What is a lockshield valve in a fire fighting system?
The lock shield valves are installed usually in the fire hose reel and the valve can be opened only by the key. and the key shall be kept with the maintenace team not in the valve. So the valve cannot be closed by the other people.
What is the full form of Crs-related to engineering drawing?
It refers to "centres".
When appended to a dimension it means the dimension is to / from the centre mark of a diameter / radius.
What is the purpose of idler gear?
it"s just idle condition...the engine will be running
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Usually to reverse the direction of rotation in a gearbox etc.
What is low carbon steel and high carbon steel?
Low carbon steel is steel with low carbon. High carbon steel is steel with high carbon
State the advantages and disadvantages of the chain drive over belt and rope drive?
Chains versus belts
Drive chains are similar to belt-mechanicalin many ways, and which device is used is subject to several design tradeoffs. Drive chains are most often made of metal, while belts are often rubber, plastic, or other substances. This makes drive chains heavier, so more of the work put into the system goes into moving a chain versus moving a belt. On the other hand, well-made chains are often stronger than belts. Also, drive belts can often slip (unless they have timing-belt) which means that the output side may not rotate at a precise speed, and some work gets lost to the friction-1of the belt against its rollers.
Teeth on toothed drive belts generally wear faster than links on chains, but wear on rubber or plastic belts and their teeth is often easier to observe; you can often tell a belt is wearing out and about to break more easily than a chain. Chains often last longer.
Chains are often narrower than belts, and this can make it easier to shift them to larger or smaller gears in order to vary the gear ratio. Multi-speed bicycles with bicycle-gearingmake use of this. Also, the more positive meshing of a chain can make it easier to build gears that can increase or shrink in diameter, again altering the gear ratio.
Both can be used to move objects by attaching pockets, buckets, or frames to them; chains are often used to move things vertically by holding them in frames, as in industrial toasters, while belts are good at moving things horizontally in the form of conveyor-belt. It is not unusual for the systems to be used in combination; for example the rollers that drive conveyor belts are themselves often driven by drive chains.
What is a mono-beam stair and how does it work?
A monobeam stair is a stairway that is supported underneath by a single beam. This single beam, or monobeam stair works the same as any other stair that has two stringers, one up each side, on which the treads are laid and the risers are attached. The monobeam construction can add an element of "freedom" to the stairs, and it is easier to create the illusion that the stairs are "floating in air" if the whole project is done in a clever way. Got a link to a picture of a monobeam stairway, if ya want it. And there are more on the web....
What type of pump used for water mist system?
it uses centrifugal pump type to maintain pressure of 120 kg/cm2
What is terbocharger in engine?
its an air pump driven by expanding exhaust gases used to charge cylinder with pressurised air / fuel
How does a wheel and axle make work easier?
A wheel and axle are two simple machines working together. The basic uses of a wheel and axle are to:
- alleviate friction on a sliding body
- increase the amount of force applied to a rotating body
- decrease the amount of mechanical energy needed to oppose gravity
Think of a doorknob, or a rotating valve on a faucet.
Used with the opposite effect this can also increase the speed of a rotating object by requiring more force.
Think of a toy top, or a vehicle drive line.
The free wheel on axleCan be used to make work easier by lessening the friction between an object and what it is intended to slide against.Think of a car, wagon, or skateboard.
The wheel and axle on a fulcrumUses three simple machines to lessen the mechanical energy needed to oppose the force of gravity while also lessening friction.Think of a wheelbarrow, a wheeled air travel bag, a donkey cart, or vehicle trailer.
= Fill in the blanks- an air cleaner is a filter at the base of the air intake to keep out solids particles = = = = = = Air cooled engine is an engine with fins on the cylinders for cooling purposes?" =
What is the purpose of hvac system evacuation?
evacuation removes and non condensables from your hvac system such as air or moisture
What would be considered landlord negligence if a pipe burst?
previous leaks? - notice is the key. without any notice to any parties there usually is no negligence and therefore the landlord is not responsible
Define two stage impulse turbine?
A two stage impulse contains 2 stages. One stage is a stator and rotor, therefore a 2 stage impulse turbine contains a stator-rotor-stator-rotor.
Vertical Continuous Vulcanization
it is the name of the process by which a MV or HV cable is made up.
Yes, I am pretty sure that such pulley systems exist.
How do you calculate the work done in extending a spring using hooke's law?
The extension of a spring is in direct proportion with the load added to it as long as this load does not exceed the elastic limit.
F = -kx
where
F is the restoring force exerted by the material (in SI units: N);
x is the displacement of the end of the spring from its equilibrium position (in SI units: m);
k is the force constant (or spring constant) (in SI units: N·m-1 or kgs-2).
What are the standards for safety valves-?
safety valve in accordance with the requirements of Article VIII of the ASME code for pressure vessel applications, which is within 10% overpressure that opens and closes in 7%.
