Category: Engineering

What is PWM voltage? PWM applies the power in digital pulses of regulated voltage. Even between the pulses, inertia keeps the motor and fan from stopping. As a result, most PCB designs that require some type of motor speed control use PWM. The PWM duty cycle refers to the “on” state versus the “off” state. […]

What is the formula for endpoint? ? The endpoint of a line segment going from A = (x₁, y₁) to a midpoint at M = (x, y) is the point B = (2x – x₁, 2y – y₁) . What is the length of a segment when the coordinates of its endpoints are (- 4 […]

Why was the National Historic Preservation Act passed? The National Historic Preservation Act of 1966 was passed primarily to acknowledge the importance of protecting our nation’s heritage from rampant federal development. It was the triumph of more than a century of struggle by a grassroots movement of committed preservationists. When was the National Historic Preservation […]

What are the stages of fatigue failure? Stages of fatigue failure Stage 1- Initiation. Initiation is the most complex stage of fatigue fracture and is the stage most rigorously studied by researchers. Stage 2 – Propagation. The propagation stage of fatigue causes the microcrack to change direction and grow perpendicular to the tensile stress. Stage […]

Can Brake Drums be machined? Machining your drums or rotors can bring back a warped part and extend its service life. To do this, you need a piece of equipment called a brake lathe. You can mount your warped rotors or drums to this machine and it will actually cut a new surface into the […]

What is degree of freedom in mechanics? In physics, the degrees of freedom (DOF) of a mechanical system is the number of independent parameters that define its configuration or state. The exact constraint mechanical design method manages the degrees of freedom to neither underconstrain nor overconstrain a device. What is degree of freedom of a […]

What does revoked license mean? A revoked driver’s license means your license has been fully canceled and cannot be reinstated. It is possible to have your driver’s license revoked or even permanently revoked due to multiple driving offenses, medical conditions, and age. How do I get my revoked license back in California? Getting Your California […]

Which area of engineering focuses on the study of materials products and structures that may cause injury or damage? forensic engineering mechanical What type of engineer is interested in designing developing and building different machines devices and tools? Mechanical engineers What type of engineer would be responsible for developing new fuels? Petroleum engineers are researching […]

What are the main types of bearing? Types Deep-Groove Ball Bearings. The most commonly used bearings are Deep-Groove Ball Bearings. Angular Contact Ball Bearings. Self-Aligning Ball Bearings. Thrust Ball Bearings. Spherical Roller Bearings. Cylindrical Roller Bearings. Tapered Roller Bearings. Needle Roller Bearings. What is the name of bearing? There are many different types of bearings, […]

Are all transmission fluids the same? They are not all the same. Moreover, if your vehicle is still under warranty, using a fluid thatis not approved by the vehicle manufacturer will void the transmission warranty. Automobile companies develop automatic transmission fluids, or at least set specifications for them. But the car companies don’t make ATF. […]