A lever is a rigid bar that rest on a pivot that is a used to help move heavy things or firmly fixed load with one end when pressure is applied to the other end. An inclined plane is a flat surface tilted at an angle with one end raised higher than the other which is used as an aid to raise or lower something. A wedge is a piece of wood, metal or something else where one end is thicker than the other which is tapered to a thinner end. It is driven in between two objects or parts of an object to secure or separate the object. A trebuchet is a machine that was used in the medieval siege warfare for hurling large stones or other missiles.
It also involves the changing of elements into a compound. Aim: To perform a synthesis of common elements to make it into its compound state and analyse the results obtained from the processes to understand and compare the properties of the before and after state Equipment: Crucible and lid Tripod Bunsen burner Tongs Clay triangle Magnesium wire (10cm) Measuring scales Method: 1) Weight the empty crucible with its lid on the measuring scales. Make sure the crucible is dry by wiping it with paper towels as moist applies weight and make the results inaccurate. 2) Coil the magnesium wire around a pencil and remove it to make a magnesium ribbon and weight it. 3) Set up Bunsen burner and tripod while placing the clay triangle on top the tripod, align with the triangle shape.
Conduit - A rigid or flexible metallic or nonmetallic raceway of circular cross section in which cables are housed for protection and to prevent burning cable from spreading flames or smoke in the event of a fire. Racks - A frame-like structure where patch panels, switches, and other network equipment are installed. The typical dimension is 19 inches. Punch-down blocks - A generic name for any cross-connect block where the individual wires in UTP are placed into a terminal groove and “punched down” with a special tool. The groove pierces the insulation and makes contact with the inner conductor.
All Mixed Up 1. Purpose/background information: The purpose of doing this lab was to separate all four objects- Aluminum, iron fillings, salt, and sand. The point was to find a way to do this in the most accurate way possible. | Physical Properties | Aluminum | Silver, bends very easily, light weight. | Iron filings | Black, small, magnetic.
Case Study 1 - Center Board Hopper and Feeder Observations The screw feeder blow feeds screws to screw driving equipment from a remote location. The centerboard hopper feeders are noted for quiet operation and reliable feed. Centerboard will not damage screws. Vibratory feeders are self-contained systems, comprising a specially tooled bowl feeder that orients the parts, a vibrating drive unit, upon which the bowl feeder is mounted, and a variable-amplitude control box. Analysis The Center Board Hopper and Feeder consists of a blade with a shaped track along its upper edge.
Tig Welding Tig welding is also know as Heliarc or GTAW ( Gas tungsten arc welding ). Tungsten inert gas (TIG) welding is the process of blending together reactive metals such as magnesium and aluminum. The TIG welding method became popular and useful in the early 1940s and, as a result, has greatly propelled the use of aluminum for welding and structural processes. TIG welding is commonly used for both high quality and manual welding. During the process of TIG welding, an arc is formed between a pointed tungsten electrode and the area to be welded.
Explain the function of the following duct components: (57.2) Ell are elbows used to make turns in ductwork, Wye is used to split one large duct into two smaller ducts, Transition is used to change rectangular ducts from one size to another, Boot is used at the end of a round duct to allow connection of a rectangular register or grill. 8. What is the total available static pressure for ductwork for a system with the following specifications? (57.13) 9. Why should air velocity in branch ducts be limited to 600 fpm?
One major consideration when planning cable duct and trays is the bending radius, the bends must have smooth curves. Although conduits can still be used inside the building, so when a cable is pulled into a conduit, the conduit’s bending radius must be larger than the cable’s minimum bending radius for loaded conditions. Direct burial, aerial and blown fiber installations. Most common is the use of direct burial installations for long cross-country installations. The cables are plowed in or buried in
The pipe has been made to be very flexible. It is made this way so that it can be maneuvered around any offsets that are in the chimney, or any other obstructions. There are quite a few complaints about there customer service when using their warranty. The Ventnox brand lining system is made out of stainless steel with 2% titanium alloys that are formed in the liner. The price per foot of a basic six inch liner is 11 dollars.
Introduction The element Chromium is very important in the industrial world. It is used in nonferrous alloys such as stainless steel, in order to increase its hardness and prevent corrosion and oxidation. Chromium is only found in one ore, the mineral Chromite. Chromite’s composition is iron magnesium oxide [(Fe, Mg) Cr2O4]. Occasionally, magnesium will substitute for iron, and aluminum and ferric ions will substitute for chromium.