Industrial Engineering

Non-seemless pipe is rolled from a flat piece of metal and welded lengthways to form the piping. Seemless pipe is extruded and has no seems and is generally stronger.

CPH also frequently called HCP - is Close Packed Hexagonal (or hexagonal close packed). It is an arrangement of atoms in a crystal structure.

It can mean quite a few other things, one of which is the IATA code for Copenhagen airport.

See the related link for more information.

An induction motor connected to an existing ac supply normally runs at less than the synchronous speed by an amount described as the 'slip' which is proportional to the torque demanded at the shaft.

If the same motor is instead coupled to an engine and driven at a speed higher than the synchronous speed, with negative slip, power then travels back into the ac supply and the motor has become a generator. The amount of power produced depends on the speed.

However a normal induction motor will not behave as a stand-alone ac generator.

For ac power generation synchronous generators are invariably used because it is necessary to set and maintain the frequency of the supply accurately.

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Usually refers to a transformer. A step up transformer increases the voltage and a step down decreases the voltage by an amount proportional to the ratio of the windings between Primary and Secondary. A 1:2 ratio is a step up and doubles the voltage. A 2:1 would be a step down and halve the voltage.

Answer Yes, you can. I think the answer is no. A physical object in a vacuum can have some energy/heat in it, and the energy associated with electromagnetic radiation can have energy/heat associated with it, but the vacuum itself cannot. ______________________________________________________________________ There is no such thing as a vacuum.

There are three main temperature scales in use: degrees Celsius, degrees Fahrenheit, and Kelvin. Of these three, the boiling point of water at STP is 100 degrees Celsius.

A pilot hole can be to help direct a screw in situations where alignment is important. Most commonly it is used to ease the process of fastening the screw and reducing potential damage to threads in the process.

Yes, Mild steel has a property of malleability, it completely depends on its chemistry. If you have an option to choose the chemical composition, you must choose lower carbon, Manganese content.

If you define a variable inside of your function, the variable can be referred and used only inside of that function. It means that you will not able to use the variable in another function (including main). Area of code where your variable can be used after declaration is usually called visibility of the variable.

We use machines because it saves us time doing it ourself, and if we use machines it will save us time XD

pump selection requires many factors like the flow rate requirements, speed , pressure,cost ,maintenance, performance,reliability. step1: find out what type of actuator your are going to use depending on the type of loading .cylinder type actuator or a rotary type actuator like a hydraulic motor.

step2: find out the flow rate requirements depending upon the distance through which the load is to be moved in a specified time limit.

step3: find out the pressure requirements depending upon the magnitude of the load and the size of the actuator.now along with the flow rate you can find the power requirement of the pump and select the prime mover do drive the pump.

step4:find out the speed of the pump and along with flow rate calculations determine the pump size.

step5: gear ,vane and piston are the types of pump available for the fluid power applications.there are many subtypes available for these pumps.

gear pump= 500-3000 psi,1200-2500 rpm,efficiency 80-90 ,flow capacity 1-200 gpm

vane pump=1000-2000 psi,speed 1200-1800 rpm, efficiency 80-95, flow capacity 1-80gpm

piston pump=2000-12000 psi, speed 1200-3000 rpm, efficiency 85-98,flow capacity 1-200 gpm.

apart from these determine the power losses etc.,

200 bhn max.

They need groynes to prevent te sand going in land slides

I think you're looking at two separate terms.

SAE 4140 steel is a Chromium-Molybdenum steel used extensively for axles, aerospace concerns, and firearm manufacture.

Mild steel is a catch-all term for plain carbon steel of low carbon content (such as SAE 1018) which is generally cheap, not heat-treatable, and used for fairly low-strain applications.

I hope that helps.

Mike

Source - Machinery's Handbook, 11th Edition, 1943

It means that it is by itself - as opposed to being bundled with other applications for example.

Control of the active power supplied

by the generator to an interconnected

network

• Control of network frequency on an

isolated electrical network

• Protection of the unit against over speed

in case of load rejection

As with any other rotational system in a belt drive during rotation, the belt is subjected to centrifugal force. Due to the centrifugal force the belt is thrown outward from the grooves of the pulley and causes additional tensioning of the belt. The effect of centrifugal tension is that it reduces the pretension of the belt and hence increases belt slip.

The purpose of both the valves is same - that to maintain a certain level(in a vessel or tank...) Simple Level valve could be referred to an ON - OFF valve where as control valve could be referred to an analog type of valve. On - OFF valve is for a crude control of level, while control valve is used where a fine level control is needed.

Wood is a renewable resource. It is strong, light, fairly easy to work and work with, and it lasts pretty well. It is relatively inexpensive, broadly available, and can be adapted to make lots of wonderful things from kitchen spoons to houses. And when we look at the custom turnings or crafted wood furnishings produced over the years, we see some of the most wonderful grain and coloration in this ancient building material.

The simplest way to start a three-phase induction motor is to connect its terminals to the line. In an induction motor, the magnitude of the induced EMF in the rotor circuit is proportional to the stator field and the slip speed (the difference between synchronous and rotor speeds) of the motor, and the rotor current depends on this EMF. When the motor is started, the slip speed is equal to the synchronous speed, as the rotor speed is zero (slip equal to 1), so the induced EMF in the rotor is large. As a result, a very high current flows through the rotor. This is similar to a transformer with the secondary coil short circuited, which causes the primary coil to draw a high current from the mains. When an induction motor starts DOL, a very high current is drawn by the stator, on the order of 5 to 9 times the full load current. This high current can, in some motors, damage the windings; in addition, because it causes heavy line voltage drop, other appliances connected to the same line may be affected by the voltage fluctuation. To avoid such effects, several other strategies are employed for starting motors.

They both do. Voltage is a measure of electrical pressure. Amperage is a measure of electrical flow (current) (amount of electricity flowing). High voltage by itself will not kill you but will leave a nasty taste in your mouth. At the right pressure your heart can be stopped though by a single amp.

To distribute input pressure to the output(s). Automobile brakes use a proportioning valve to prevent sending too much or too little pressure to the wheels. Since your car dives forward and the weight of your engine is on top of your front wheels, the back wheels need less hydraulic pressure.

it is very easy. u can find it in the book of machine desigh by khurmi or kannath or bhandari.

The biggest disadvantage of a horizontal waterwheel is that the weight of the turning wheel works the most against the current in this situation. In vertical waterwheels, the momentum of the descending parts isÊadded to by its own weight.