Category: Engineering

What effect does the wind chill factor have on temperature? The wind chill factor describes what happens to a body when it is cold and windy outside. As wind increases, heat is carried away from the body at a faster rate, driving down both skin temperature (which can cause frostbite) and eventually the internal body […]

How do you calculate V peak to peak? Alternating Current (AC) the peak to peak voltage = 6 squares from the highest point to the lowest and each square is worth 10V. So the peak to peak voltage = 60 V. the peak voltage ( Vo )= half the peak to peak voltage = 60 […]

How do you prevent hydroplaning? How do I Avoid Hydroplaning? Keep your tires properly inflated. Rotate and replace tires when necessary. Slow down when roads are wet: the faster you drive, the harder it is for your tires to scatter the water. Stay away from puddles and standing water. Avoid driving in outer lanes where […]

What is the most common method of welding? Shielded Metal Arc Welding What are the techniques of welding? The following are the commonly used welding methods: Stick/Arc welding (SMAW) Metal Inert Gas (MIG) welding or GMAW. Tungsten Inert Gas (TIG) welding or GTAW. Flux-Cored Arc Welding. What are the common welding techniques used to different […]

How do you calculate heat loss through a wall? Heat loss from the walls: Area of the walls = 1,920 ft2, HDD = 6,100, and the composite R- value of the wall needs to be calculated. Total heat loss from the house = 13.78 + 84.91 + 18.30 =116.99 MMBTU in a year or heating […]

For what values of k is the system stable? If K < 1386, the system will remain stable. If K > 1386, the system will remain unstable. How do you determine a closed loop stability? The determination of stability is based on the closed-loop characteristic polynomial: Δ(s,K)=1+KGH(s). What are the characteristics of stable and unstable […]

What power must be in place when you first place a slide on the microscope stage? When focusing on a slide, ALWAYS start with either the 4X or 10X objective. Once you have the object in focus, then switch to the next higher power objective. Re-focus on the image and then switch to the next […]

How does Net Force affect speed? If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. An unbalanced force (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a […]

How do you find the electric field using Gauss law? The electric field coming out of the center of the ball penetrates perpendicular to the surface of the sphere so that the formula of electric flux is Φ = E A = E 4π r2. The formula of Gauss’s law is Φ = Q/εo. How […]

What is the value of resistance R? R=I2100=100Ω What is the formula of resistance R? Given this, we now have two known quantities for use in our calculation – the voltage and the current. Using the Ohms law triangle, the required resistance is calculated from the formula “R=V/I”, which gives us 12/0.015=800 Ohms (see below […]