What happens when an engine knocks? Basically, engine knock (also known as pinging, detonation and spark knock) occurs when the air/fuel mixture inside a cylinder is incorrect, which makes the fuel burn unevenly. This also creates the common “pinging” noise that is often described when knock is present. Which one is affected by knock? Factors […]
What is mgd in wastewater?
What is mgd in wastewater? It simply is the actual amount of water flowing by a particular point over some specified time. In most cases, we report flow in terms of millions of gallons per day. You will see this unit of measurement abbreviated as “MGD.” What is effluent in wastewater treatment? Effluent is sewage […]
What is black box method?
What is black box method? Black box testing involves testing a system with no prior knowledge of its internal workings. A tester provides an input, and observes the output generated by the system under test. Black box testing is a powerful testing technique because it exercises a system end-to-end. What are the black box testing […]
How can poor credit affect you financially?
What are the 4 types of materials?
What are the 4 types of materials? How many types of material are there? Materials are generally split into four main groups: metals, polymers, ceramics, and composites. What are the types of engineering materials? Engineering Materials Ferrous Alloys. Carbon Steel. Low-Alloy Steel. Tool Steel. Stainless Steel. Cast Iron. Aluminum Alloys. Nickel Alloys. Copper Alloys. Titanium […]
How do you calculate step angle on a stepper motor?
What does it mean when we say that a lever operates at a mechanical disadvantage?
What does it mean when we say that a lever operates at a mechanical disadvantage? Regardless of type, all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage. What are the levers that operate at a mechanical disadvantage called? A&P […]
Why is steel used in engineering?
Why is steel used in engineering? It gives better shape and edge than iron which is used to make weapons. Engineering steels are used for general engineering and manufacturing sectors. Steel is highly used in the automobile industry. Different types of steels are used in a car body, doors, engine, suspension, and interior. Why is […]
How do you calculate the horsepower of an electric motor?
How do you calculate the horsepower of an electric motor? Using the formula (V * I * Eff)/746=HP, determine your electric motor’s horsepower. Multiply the voltage, the current, and the efficiency, then divide the result by 746. For example, the horsepower of a 230v motor pulling 4 amps and having 82% efficiency would equal 1 […]
Are there traffic lights on limited access highways?
Are there traffic lights on limited access highways? Being limited access highways, interstates do not have traffic lights except on rare occasions. What does a limited access highway mean? A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled access highway, is a highway or arterial road for high-speed […]