What are water trucks used for?



Water trucks are a vital part of mining and construction operations. Dust control, compaction, even fire prevention are among the uses of these powerful machines. Water trucks are different from regular trucks in that they have special tank specifications, custom chassis design and mounting apparatuses, and associated pumping equipment.



Water trucks come in a range of sizes and designs, with larger trucks able to haul as much as 36,000L. Some are even specially designed for mining applications and come with off-road tyres, safety equipment and are reinforced for stability over rugged terrain.



The spraying and filling capabilities also vary from truck to truck, depending on the purpose. For starters, filler pipes are typically mounted on the truck’s near side or via an opening on top of the tank. As for spaying capabilities, spray nozzles can be situated on the front, side and/or rear of the truck, and are typically controlled from inside the driver’s cab. There are also drip bars, hose reels, water cannons and more.



 



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How does a garbage truck work?



Basically, a garbage truck is a machine that making our waste squeeze and minimize the space that trash take.

A garbage truck that aims to reduce the size of your waste on landfills works easily. The garbage thrown into the garbage compactor is divided into small and collectible pieces with a metal mallet, then these garbage pieces are collected in groups in a bag or compacted.



Garbage trucks produced for the purpose of cleaning neighborhoods, streets, and cities are used by garbage disposal workers to clean the places we live in. The garbage collected by the sanitation engineers is loaded into the back of the garbage truck or the garbage containers are transported by the garbage machines and dumped into the back chamber of the garbage truck.



Later, the garbage loaded into the rear chamber of the truck is pushed to the middle part of the garbage truck by hydraulic cylinders. The press assembly at the rear of the truck shreds or compresses the waste. Later, when the garbage truck is full, the garbage collectors take it to waste collection centers. During unloading, the rear of the truck lifts up and the garbage is discharged from the rear chamber of the truck, accompanied by a hydraulic cylinder.



 



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How tow truck works?



A tow truck (also called a wrecker, a breakdown truck, recovery vehicle or a breakdown lorry) is a truck used to move disabled, improperly parked, impounded, or otherwise indisposed motor vehicles. This may involve recovering a vehicle damaged in an accident, returning one to a drivable surface in a mishap or inclement weather, or towing or transporting one via flatbed to a repair shop or other location.



Tow trucks are vehicles specially designed to take other cars or vehicles and bring them to another location. They are usually operated by private businesses or emergency services, depending on their intended use. Tow trucks can be used in accident recovery or vehicle repossession. Oversized tow trucks are typically used to haul several cars for transport or move even bigger vehicles such as aircraft and fire trucks.A tow truck works depending on the style of truck and their purpose. For emergency services, a tow truck could either be a flat-bed, wheel-lift, or a hook-and-chain truck.



The flatbed trucks are as the name implies: they are equipped with a large, flat surface on the back. Flat bed tow trucks have a pulley system that attaches underneath the front or back of the car. The bed would be angled down to form what looks like a ramp. As the tow truck driver actuates the pulley, the car is drawn onto the flat bed. The driver levels the bed out and secures the vehicle by the wheels onto the truck.



For the hook-and-chain tow truck, a boom is attached to the back of the tower's vehicle. A chain with a hook at the end hangs from the boom. The tower can adjust the boom and the chain as needed. The chains and/or hook would be attached to the vehicle's axle. The boom would lift the vehicle up and place the front wheels onto a rubberized area on the back of the truck, while the back wheels are free on the road.



Wheel-lift trucks are often used in repossessions because of their compactness and have less ability to damage a car. Wheel-lift tow trucks have a deployable attachment called a yoke on the back that touches only the wheels of the towed car. When activated, the yoke can be positioned under the front or rear wheels. The truck lifts the front or back of the car off the ground.



 



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How bicycle pedal works?



Hop on, pedal, and zoom away! When you push your foot down on a bike pedal, the pedal turns a large front sprocket. The sprocket is a wheel with teeth sticking out of it. The teeth fit into, or “mesh,” with the bike chain. The sprocket is called the chainwheel because it “drives” the chain. The chain moves a smaller sprocket on the back wheel. Every time you push on the pedal, the back wheel moves around two or three times.



The larger the sprocket, the lower the gear. The smaller the sprocket, the higher the gear. A low gear makes it easier to pedal. It is used for pedaling uphill or against the wind.



Some bikes have many gears. A high gear lets you pedal slowly but move the bike a long way.



Imagine pedaling a bike while you sit in a chair with your legs straight out in front of you. This is how you ride a recumbent bike. Some recumbent bikes have no handlebars. You steer with levers beneath the seat.



Unicycle



Uni means “one”. A unicycle has only one wheel. It takes great balance to ride a unicycle. You need to keep yourself steady, seated above the wheel. But you also need to steer using the pedals and leaning your body slightly to the left or right.



 



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How fork lift works?



Forklifts use a combination of hydraulics, a pulley system and other things to lift heavy materials across different distances. They are commonly used in warehouses, construction sites and other places that need to transport lots of heavy materials. We know where it’s used, but how does a forklift work? To answer that, we put together this guide to break down what a forklift is used for, its different parts and how it works.



Since the invention of the first “forklift” (which was originally called a truck tractor) about 100 years ago, forklifts have become a nearly universal sight in most materials handling workplaces. These amazing machines harness the power of physics to lift heavy loads to impossible heights, sometimes several stories above the height of the forklift itself, and most modern lift trucks accomplish this feat with little physical effort and minimal risk to the operator.



New developments in efficient power usage, operator safety, and sophisticated stability controls allow leaner machines to accomplish meaner tasks. At this point, the cost, efficiency, and safety of most standard forklifts make them an indispensable business resource. In fact, if your business depends on heavy manual tasks like loading, unloading, and pallet lifting, your forklift investment may pay for itself several times over.



 



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How conveyor belt works?



A conveyor belt works by using two motorized pulleys that loop over a long stretch of thick, durable material. When motors in the pulleys operate at the same speed and spin in the same direction, the belt moves between the two.



If objects are particularly heavy or bulky — or if the conveyor belt is carrying them for a long distance or duration — rollers may be placed on the sides of the conveyor belt for support. Rollers keep objects in place and keep the belt from sagging.



As a rotor turns, the conveyor belt will turn as well due to the intense friction between the rotor wheel and the belt. This turning motion of the rotor causes one side of the belt to move in one direction, while the other moves in the opposite direction. This means that both wheels must always be moving in relatively the same direction, either clockwise or counter-clockwise. If the two rotor wheels moved in opposite directions, the conveyor belt would not travel at all.



 



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How lift works?



Scientifically, elevators are all about energy. To get from the ground to the 18th floor walking up stairs you have to move the weight of your body against the downward-pulling force of gravity. The energy you expend in the process is (mostly) converted into potential energy, so climbing stairs gives an increase in your potential energy (going up) or a decrease in your potential energy (going down). This is an example of the law of conservation of energy in action. You really do have more potential energy at the top of a building than at the bottom, even if it doesn't feel any different.



To a scientist, an elevator is simply a device that increases or decreases a person's potential energy without them needing to supply that energy themselves: the elevator gives you potential energy when you're going up and it takes potential energy from you when you're coming down. In theory, that sounds easy enough: the elevator won't need to use much energy at all because it will always be getting back as much (when it goes down) as it gives out (when it goes up). Unfortunately, it's not quite that simple. If all the elevator had were a simple hoist with a cage passing over a pulley, it would use considerable amounts of energy lifting people up but it would have no way of getting that energy back: the energy would simply be lost to friction in the cables and brakes (disappearing into the air as waste heat) when the people came back down.



 



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How container truck works?



Moving containers give you the option of hiring out help for a big part of the moving process (the driving part) without having to go all in on a full-service moving company.



It’s a bit like wrapping all your belongings in one huge Christmas present and having Santa deliver it to your new home. You can hire people to wrap and unwrap it for you (think Santa’s elves) or you can do it yourself and save a few bucks. And if you have a lot of stuff, you may have more than one “present.”



A moving container company will bring as many containers to your home as needed. You simply load your belongings into the moving container and then sit back while the company transports everything to your new address. When your container arrives, you unload your stuff, and the company returns to pick it up.



If timing is an issue, most container companies will store your moving container at a warehouse until you’re ready to unpack into your new home.



 



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How food mixer works?



To use a handheld mixer, you first plug it in and attach two balloon whisks. Place the mixer in your bowl of ingredients and select the speed setting you want. Turn it on by pushing a switch. The whisks start to rotate due to an electric motor inside the device. The whisks will mix, beat or whip the ingredients, depending on your speed setting. They will also incorporate air into your ingredients, giving them a "fluffier" texture. You often move the bowl while using your mixer, to make sure every ingredient is thoroughly mixed.



A stand mixer works similar to a handheld, with the difference that you attach a bowl (often a stainless steel bowl) to it and you do not have to hold the mixer. After affixing the bowl to the mixer, you add the preferred attachment (such as a dough hook for bread ingredients) and select the desired speed setting. You then flip the switch, and a large motor will rotate the attachment. Let it work as long as it needs. You may have to scrape the attachment during the mixing, such as when too much of the dough sticks to the hook.



 



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How pushchair helps to move things?



A pushchair is ideal for older babies at around 6 months. A good way to judge if a baby is ready for a pushchair is if they are able to sit up unaided. A pushchair generally offers the option for the baby to be forward-facing too and in this position, it's sometimes referred to as a ‘buggy’ which is another term that is used interchangeably.



A travel system consists of a pushchair frame, upon which other parts can easily be fitted. These parts include carrycot, seat unit and a rear-facing car seat and are purchased together as a package which often makes a travel system good value for money.



However, travel systems don’t always have to be bought together as a package, alternatively, you can buy the elements separately.



Most pushchair brands include compatible car seat adaptors in the travel system package enabling the infant car seat to easily be clipped onto the wheels so that a sleeping baby can be moved seamlessly from car to pushchair.



Many car seat manufacturers recommend that a baby should spend no longer than 2 hours (30 minutes for newborns) in a car seat within a 24 hour time period. The benefit of a travel system bundle is that it includes all the parts needed to grow with your baby- once the baby has outgrown the car seat and carrycot, the seat unit can be used.



 



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How escalator machine helps to move things?



Escalators are one of the largest, most expensive machines people use on a regular basis, but they're also one of the simplest.



At its most basic level, an escalator is just a simple variation on the conveyer belt. A pair of rotating chain loops pulls a series of stairs in a cons­tant cycle, moving a lot of people a short distance at a good speed.



The core of an escalator is a pair of chains, looped around two pairs of gears. An electric motor turns the drive gears at the top, which rotate th­e chain loops. A typical escalator uses a 100 horsepower motor to rotate the gears. The motor and chain system are housed inside the truss, a metal structure extending between two floors.



Instead of moving a flat surface, as in a conveyer belt, the chain loops move a series of steps. The coolest thing about an escalator is the way these steps move. As the chains move, the steps always stay level. At the top and bottom of the escalator, the steps collapse on each other, creating a flat platform. This makes it easier to get on and off the escalator. In the diagram below, you can see how the escalator does all of this.



Each step in the escalator has two sets of wheels, which roll along two separate tracks. The upper set (the wheels near the top of the step) are connected to the rotating chains, and so are pulled by the drive gear at the top of the escalator. The other set of wheels simply glides along its track, following behind the first set.



 



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How crane machine helps to move things?



Cranes combine simple machines to lift extremely heavy objects. In balance-style cranes, the crane’s beam is balanced at a point, called the fulcrum. This allows it to lift heavy objects with a relatively small force. In this way, the crane’s beam acts as a simple lever. Cranes also make use of the pulley, another simple machine. Tower cranes often have more than one pulley. This helps it multiply its force to lift heavy objects.  



Cranes exist in an enormous variety of forms, each tailored to a specific use. Sizes range from the smallest jib cranes, used inside workshops, to the tallest tower cranes, used for constructing high buildings. Mini-cranes are also used for constructing high buildings, in order to facilitate constructions by reaching tight spaces. Finally, we can find larger floating cranes, generally used to build oil rigs and salvage sunken ships.



Some lifting machines do not strictly fit the above definition of a crane, but are generally known as cranes, such as stacker cranes and loader cranes.



 



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How grocery trolley machine helps to move things?



Shopping carts (also known as shopping trolleys or shopping baskets in some parts of the world) are a great example of a simple machine at work. They consist of only two main parts: a metallic basket and a set of wheels. The basket has a handle attached to it (which helps in steering the cart), and it’s installed above a set of four small wheels that make pushing, pulling and steering the cart very convenient.



It’s quite clear that a shopping cart consists of very simple components, but it is of tremendous assistance to shoppers while they roam throughout the shopping mart looking for a particular flavor of cookie or a big bottle of anti-dandruff shampoo.



In some countries, including India, the United Kingdom and Australia, there is a rather queer problem with trolleys; they seem to have a mind of their own! Suppose you try to turn a trolley towards, say, the left. It would definitely turn, but not towards the left; it would either go towards the right or move straight ahead. The same thing happens when you push them in the forward direction; it goes left or right unless you apply a surprisingly large amount of force to move it in the desired direction.



 



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How potter's wheel machine helps to move things?



The earliest wheel and axle machines were used as potter’s wheels. A potter’s wheel is a flat, round stone. By applying effort to a pedal, the potter makes the stone spin on its axle. The potter works a piece of clay between her hands on the spinning stone, shaping the clay into a pot. Clay pots were very important in everyday life in ancient times. They were used to store food, water, and medicines.



A potter's wheel may occasionally be referred to as a "potter's lathe". However, that term is better used for another kind of machine that is used for a different shaping process, turning, similar to that used for shaping of metal and wooden articles.



The techniques of jiggering and jolleying can be seen as extensions of the potter's wheel: in jiggering, a shaped tool is slowly brought down onto the plastic clay body that has been placed on top of the rotating plaster mould. The jigger tool shapes one face, the mould the other. The term is specific to the shaping of flat ware, such as plates, whilst a similar technique, jolleying, refers to the production of hollow ware, such as cups.



 



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What is CD-ROM?



CD-ROM’s are important tools for computer users. CD-ROM’s are discs that store words, music, and images. Encyclopedias, games, and other programs that would require greater storage capacity can fit onto one CD-ROM. CD-ROM stands for computer disc read-only memory.



When you put a CD-ROM into your computer’s drive, files are copied from the disc to the computer’s hard drive. These files tell the computer how to access all the information on the CD-ROM.



A DVD (digital video disc) is the same size as a CD-ROM but can store much more information. Unlike a CD or CD-ROM, the DVD is able to record data (information) on both the top and the bottom of the plastic disc. And it can record two layers of data on each side. A DVD player can also play CD-ROM’s.



A DVD contains layers of digital data encoded in tiny pits. In a DVD player, a lens focuses a laser beam on the desired layer. As the disc rotates, the pits and the flat areas between them reflect patterns of light to a photo detector, which changes the patterns into electrical signals. A single layer of a DVD has more pits, placed closer together, than an ordinary CD has, and so can store more data.



 



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