What type of work do construction workers do? Construction workers (also known as construction laborers) work on construction sites. They are responsible for a number of on-site tasks, such as removing debris, erecting scaffolding, loading and unloading building materials, and assisting with operating heavy equipment. What is the work environment like for a construction worker? […]
What is ductile and brittle failure?
What is ductile and brittle failure? Brittle Fracture involves fracture without any appreciable plastic deformation (i.e. energy absorption). Ductile Fracture in the converse and involves large plastic deformation before separation. The difference between brittle and ductile fracture is illustrated in figures 1 and 2. What type of failure is exhibited by a brittle material behave […]
What are the 3 types of tolerances?
What are the 3 types of tolerances? A tolerance is an acceptable amount of dimensional variation that will still allow an object to function correctly. Three basic tolerances that occur most often on working drawings are: limit dimensions, unilateral, and bilateral tolerances. What is definition of tolerance? 1 : capacity to endure pain or hardship […]
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What is the formula for calculating principal payment?
What is the formula for calculating principal payment? What Is Your Principal Payment? The principal is the amount of money you borrow when you originally take out your home loan. To calculate your principal, simply subtract your down payment from your home’s final selling price. For example, let’s say that you buy a home for […]
How are conductor sizes expressed?
How are conductor sizes expressed? Conductor sizes are expressed in American Wire Gage (AWG) or in circular mils. Conductor sizes found in Chapter 9, Table 8 of the National Electrical Code® start with 18 AWG (the smallest size) and end up at 2000 circular mils (the largest size). How is wire diameter expressed in the […]
How does fouling factor affect heat transfer?
How does fouling factor affect heat transfer? The deposition of any undesired material on heat transfer surfaces is called fouling. Fouling increases the overall thermal resistance and lowers the overall heat transfer coefficient of heat exchangers. Fouling also impedes fluid flow, accelerates corrosion and increases pressure drop across heat exchangers. What are the common causes […]
Can a tight serpentine belt cause loss of power?
Can a tight serpentine belt cause loss of power? If the belts are too tight, they can put a strain on the shaft (and its bearing) of the alternator, power-steering pump and even the water pump. How long does a serpentine belt usually last? 60,000 to 100,000 miles What happens if serpentine belt breaks while […]
What does a comparator circuit do?
What does a comparator circuit do? A comparator circuit compares two voltages and outputs either a 1 (the voltage at the plus side; VDD in the illustration) or a 0 (the voltage at the negative side) to indicate which is larger. Comparators are often used, for example, to check whether an input has reached some […]
Which element forms a protective coating when it rusts?
Which element forms a protective coating when it rusts? chromium How is filiform corrosion treated? This type of filiform corrosion can damage all types of aluminum products such as wheels, automobile bodies and aircrafts. To repair the effect requires sanding and the application of a new layer of coating. To prevent filiform corrosion, proper surface […]