a) b) c) 6. Mention 4 material types used in Spur and Bevel gears a) b)...
Compare and contrast spur, helical, spiroid, hypoid, spiral, bevel and worm gears. What are the advantages/disadvantages of each? When and/or where would you use each type? There are 5 types of clutches. List them, and compare/contrast, listing the application uses for each type. Explain the two types of brakes - disc and drums. Which is more susceptible to changes in coefficient of function and why? Look at these two examples of couplings. Which of these is more suitable for a...
Figure Q1 shows a gear train consists of four spur gears A, B, C and D to be designed for a specific mechanism. The power transmitted by gear A is 5 kW at rotational speed of 720 rpm counterclockwise direction. Number of teeth (N) for gears A,B,C and D are respectively 20, 50, 30 and 60. The module and pressure angle of the gears are respectively 4 mm and 20o . Determine followings: (a) Tangential and radial forces between gears...
Two 20° involute full depth spur gears are used to transmit the power and speeds shown. The material for both pinion and gear is specified as through- hardened steel tempered to 300 BHN surface hardness. Both pinion and gear are precision cut for "very accurate” gearing. For a factor of safety of 2 and assuming a diametral pitch, Pof 9. specify face widths of the pinion and gear using only the AGMA bending fatigue analysis. State all assumptions used to...
Two 20° involute full depth spur gears are used to transmit the power and speeds shown. The material for both pinion and gear is specified as through-hardened steel tempered to 300 BHN surface hardness. Both pinion and gear are precision cut for "very accurate" gearing. For a factor of safety of 2 and assuming a diametral pitch, Prof 9, specify face widths of the pinion and gear using only the AGMA bending fatigue analysis. State all assumptions used to determine...
power = 3 kW if need any more information please ask !!! You are the designer and you have been asked to design a speed reducer (gearbox) that will take power from the shaft of an electric motor rotating at 1500 rpm and deliver it to a machine that is to operate at approximately at 200 rpm Assume that you have decided to use spur gears to transmit the power [A power equal to the last one digits of your...
Create a cause and effect diagram for the following case: Case Study Eastern Gear,Inc.: Job Shop Eastern Gear, Inc., in Philadelphia, Pennsylvania, is a manufacturer of custom-made gears ranging in weight from a few ounces to over 50 pounds. The gears are made of different metals, depending on the customer's requirements. Over the past year, 40 different types of steel and brass alloys have been used as raw materials. See Exhibit 1 for details. be necessary to stop production and...
Background INFO There are four types of blood: A, B, AB, and O (Figure 4). Each is characterized by the glycoproteins (proteins with a sugar attached) and lipoproteins (proteins with a lipid attached) embedded in the surface of red blood cells (RBCs). In addition to type, blood can be rhesus (Rh) factor positive or negative. These proteins are inherited and may differ from individual to individual. If, during a transfusion, an individual receives blood with the incorrect RBC proteins (for...
1. Bacteria such as E.coll and staph belong to which Domain? A. Animalia B. Eukarya C. Archaea D. Bacteria 2. In general terms, prokaryotic cells are cells that? A. Have a nucleus B. Do not have a nucleus. 3. Think about the name E. coli 4X56. In that name which refers to the serotype? A E B. coli C4X56 4. Which of the following best describes the type of bacteria that are important to ecology, and once were thought to...
Item 4 In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button. Original Source Material Student Version Television and radio editorials--when they rarely occur--are usually bland; typically, they are opposed to sin and for freedom. But too many newspaper editorials are the same, and newspapers do not have a federal license that might be taken away. The unspoken motto that hangs over...
Question 1 An array is NOT: A - Made up of different data types. B - Subscripted by integers. C - A consecutive group of memory chunks. D - None of the choices. Question 2 How many times is the body of the loop executed? int i=1; while(true) { cout << i; if(++i==5) break; } A - Forever B - 4 C - 5 D - 6 E - 0 Question 3 What is wrong with the following piece of...