Category: Engineering

Can diffusion occur in solids liquids and gases? The spreading out and mixing of a substance with another substance due to the motion of its particles is called diffusion. The diffusion of one substance into another substance goes on until a uniform mixture is formed. Diffusion occurs in gases, liquids and solids. Diffusion is fastest […]

How do you declare a float variable? You can define a variable as a float and assign a value to it in a single declaration. For example: float age = 10.5; In this example, the variable named age would be defined as a float and assigned the value of 10.5. What is float variable? A […]

Can water soaked brake shoes cause brake fade? Tech A says that friction brakes can fade due to overheating of the brake lining. Tech B says that friction brakes can fade due to overheating of the brake fluid. Tech A says that kinetic energy is created during braking to stop the vehicle. Tech A says […]

Why flow measurement is important? Measurement of flow, whether it is a liquid or gas, is commonly a critical parameter in many processes. In most operations it is important to know that the right fluid is at the right place at the right time. Some critical applications require the ability to conduct accurate flow measurements […]

What is the Multicausation disease model? Most of these diseases become apparent in people over a period of time and are not caused by a single factor but by a combination of factors. The concept of “caused by many factors” is often called the multi causation disease model. What is the difference between a communicable […]

How does thickness affect lift? Increasing the thickness will increase the lift. Increasing the area will increase the lift. Increasing the camber will increase the lift. A symmetric airfoil, or even a flat plate at angle of attack, will generate lift. How do you calculate airfoil thickness? Calculating the Thickness of a NACA 4-Digit (Modified)Airfoil […]

What will cause a stationary object to start moving? Force and Motion Force can cause a stationary object to start moving or a moving object to change its speed or direction or both. A change in the speed or direction of an object is called acceleration. What happens to static friction when an object starts […]

What should be the following distance between your vehicle and the vehicle ahead of you? two seconds How do you use the 3 second following distance rule? Simply leave 3 seconds worth of room between you and the vehicle you are following. Just watch the vehicle in front of you pass a road sign or […]

What are the criteria and constraints of the design problem? Explain the terms “criteria” and “constraints.” Criteria are things the design needs to do in order to be successful–its requirements. Constraints are limitations on the design. These may be materials available, the cost of the materials, the amount of time they have to develop the […]

Are my YouTube subscriptions public? Public: When your subscriptions are set to public, other users can see what channels you subscribe to. Your subscriptions are listed on your channel homepage. Your account is listed in the Subscribers List for any channel you subscribe to. How do you ask someone to subscribe to you? #1: Ask […]