Category: Engineering

What is ground in a circuit? In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth. How do you tell which wire is ground? The white wire is the “neutral” wire, […]

How do you calculate entropy in thermodynamics? This ratio of QT is defined to be the change in entropy ΔS for a reversible process, ΔS=(QT)rev Δ S = ( Q T ) rev , where Q is the heat transfer, which is positive for heat transfer into and negative for heat transfer out of, and […]

What is meant by yield criteria? A yield criterion is a hypothesis defining the limit of elasticity in a material and the onset of plastic deformation under any possible combination of stresses. There are several possible yield criteria. Using this construction, any stress can be plotted as a point in 3D stress space. What is […]

What are parts of window called? A window frame is the framework that surrounds and supports the entire window system. It is comprised of the head, jamb and sill. The head is the main horizontal part forming the top of the window frame. Jambs are the main vertical parts forming the sides of a window […]

What is the maximum safe level of noise exposure within an 8 hour period NZ? AS/NZS 1269.4 predicts a 10 dB hearing loss for 95% of a noise-exposed population if they are exposed for 40 years to the noise standard of 85 dB(A) for 8 hours per day. The exposure limits do not apply to […]

What is the mass of a 10.0 cm3 cube of copper? 89.6 g. What is the density of copper? 8.96 g/cm³ (Near room temperature)Near room temperature What is the volume of 325 g of metal with a density of 9.0 g cm3? What is the volume of 325 g of metal with a density of 9.0 […]

How does a steam engine generate power? The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force is transformed, by a connecting rod and flywheel, into rotational force for work. How did the steam engine help power the Industrial Revolution? The steam […]

What are the 3 types of loops in Python? Python 3 – Loops Sr.No. Loop Type & Description 1 while loop Repeats a statement or group of statements while a given condition is TRUE. It tests the condition before executing the loop body. 2 for loop Executes a sequence of statements multiple times and abbreviates […]

How long does it take to drive a mile at 80 mph? 1/80 hours How long does it take to drive 75 miles at 80 mph? 16 of an hour=56.25 minutes.. How many hours is 85 miles? 68 miles/85 mph = 0.8 hours or 48 minutes. To double-check it’s the right answer, you’re going 85 […]

Why is Toncontin Airport dangerous? The airport received much notoriety as being one of the most dangerous in the world due to its proximity to mountainous terrain, its short runway, and its historically difficult approach to runway 02. Which airlines fly to Honduras? Direct from United States Delta flights American Airlines flights United flights Spirit […]