Category: Engineering

How strain is measured with the help of strain gauges? A strain gauge (also spelled strain gage) is a device used to measure strain on an object. As the object is deformed, the foil is deformed, causing its electrical resistance to change. This resistance change, usually measured using a Wheatstone bridge, is related to the […]

Is Graphite an amorphous solid? Graphite is a crystalline (not amorphous) covalent crystal. Which of the following is an amorphous material? Quartz glass (SiO2) is an amorphous solid due to its short range order of constituent particles. Note Quartz is a crystalline solid while quartz glass is an amorphous solid. What holds amorphous solids together? […]

What is the difference between air standard assumptions and the cold air standard assumptions? ♨Along with all the above assumptions, taking constant specific heats at room temperature, at 25 C for air, is called cold air standard assumptions. ✔Assuming constant specific heats at room temperature 25 C for air is only the difference between air […]

Which function is used for accepting a string as input? You can use the scanf() function to read a string. The scanf() function reads the sequence of characters until it encounters whitespace (space, newline, tab, etc.). What is string library function in C? Here are some of the commonly used string library functions: strlen(): This […]

How does a safety valve work? The principle type of device used to prevent overpressure in plant is the safety or safety relief valve. The safety valve operates by releasing a volume of fluid from within the plant when a predetermined maximum pressure is reached, thereby reducing the excess pressure in a safe manner. How […]

What is a prescriptive specification? prescriptive specification. Specifications that describe not only the expected end result of construction, but also methods and materials that must be used to achieve the desired results. Also called proprietary specifications. What are performance based specifications? In the broadest terms, a performance specification defines the performance characteristics of the final […]

What is mouse acceleration? Mouse acceleration is a setting where the cursor distances increases if the mouse is moved quickly. Mouse smoothing is the interpolation of raw input data from the mouse in order to prevent jerky movement in low resolution mice. Why is mouse acceleration bad? The way your crosshair moves with acceleration is […]

How do I select a color in R? In R, colors can be specified either by name (e.g col = “red”) or as a hexadecimal RGB triplet (such as col = “#FFCC00”). You can also use other color systems such as ones taken from the RColorBrewer package. What Colour does Red and Brown make? Maroon […]

Why pressure angle is used in the gear? The pressure angle gives the direction normal to the tooth profile. To run gears together properly their pressure angles must be matched. The pressure angle is also the angle of the sides of the trapezoidal teeth on the corresponding rack. The force transmitted during the mating of […]

What is modulus of resilience? The modulus of resilience is defined as the maximum energy that can be absorbed per unit volume without creating a permanent distortion. It can be calculated by integrating the stress–strain curve from zero to the elastic limit. What is tensile modulus of plastic? The tensile modulus is the ratio of […]