Category: Engineering

What are the characteristics of a dot plot? A dot plot is a visual display in which each piece of data is represented by a dot above a number line, showing the frequency of each data value. The total number of dots in the plot is the total number of values in the data set. […]

What does a UPC code tell you? It consists of two parts – the machine-readable barcode, which is a series of unique black bars, and the unique 12-digit number beneath it. The purpose of UPCs is to make it easy to identify product features, such as the brand name, item, size, and color, when an […]

When two cars approach an uncontrolled intersection from different streets at the same time which driver has the right of way? Right-of-way At Uncontrolled Intersections The vehicle that arrived at the intersection first has the right-of-way. If two vehicles arrive at the intersection at roughly the same time, the driver of the vehicle on the […]

What steel are crankshafts made from? Crankshafts are made from forged steel or cast iron. Crankshafts for high-volume, low-load production vehicles are generally constructed from nodular cast iron, which has high strength (see Appendix D). Fuel-efficient engines require a high power-to-displacement ratio, which has increased the use of forged crankshafts. What is are the manufacturing […]

What is a whipping motion in welding? Essentially, the whip portion of the technique means moving the electrode ahead about 2 electrode diameters…. and then moving the electrode back about 1 diameter. So it’s a 2 steps forward, one step back type technique that makes for a distinct ripple pattern. What is the advantage of […]

How do you calculate the force of a truss member? If a force is directed at an angle, like in the case of some members of a truss, the force can be broken into a vertical and a horizontal component. To calculate the forces on the joint, you will sum the horizontal forces and set […]

What was the early theory of continental drift? Continental drift was a theory that explained how continents shift position on Earth’s surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents. What German scientist […]

What is the mean of the sampling distribution of X Bar? The Sampling Distribution of the Sample Mean. If repeated random samples of a given size n are taken from a population of values for a quantitative variable, where the population mean is μ (mu) and the population standard deviation is σ (sigma) then the […]

What does AMA stand for? ask me anything What is the AMA of the machine? The AMA of a simple machine is the ratio of output to input forces. The IMA is the ratio of input distance to output distance. What is the AMA of the inclined plane? For the inclined plane the output load […]

What are the different design methods? FAQ: Research Design & Method Observation / Participant Observation. Surveys. Interviews. Focus Groups. Experiments. Secondary Data Analysis / Archival Study. Mixed Methods (combination of some of the above) Are there other methods of the engineering design process? Comparing the Engineering Design Process and the Scientific Method. Because engineers and […]