Category: Engineering

What are nested lists in python? A nested list is a list within a list. Python provides features to handle nested list gracefully and apply common functions to manipulate the nested lists. In this article we will see how to use list comprehension to create and use nested lists in python. How do you enter […]

What are the challenges of space travel? Problem: Space travel can present extreme environments that affect machine operations and survival. Like humans, machines are impacted by gravity, propulsive forces, radiation, gases, toxins, chemically caustic environments, static discharge, dust, extreme temperatures, frequent temperature variations and more. What was the most dangerous space mission? Apollo 1 – […]

How often should the extension cord insulation plug and connector be inspected for damage? Each cord set, attachment cap, plug and receptacle of cord sets, and any equipment connected by cord and plug, except cord sets and receptacles which are fixed and not exposed to damage, shall be visually inspected before each day’s use for […]

What are the 3 heat transfer methods? What is needed for heat transfer to take place is a difference in temperature between two objects. Without this difference, no heat transfer can take place. Heat can be transferred in three ways: by conduction, by convection, and by radiation. What are the three main methods of heat […]

What does mass in motion mean? The tendency of an object to resist changes in its state of motion varies with mass. Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has. A more massive object has a […]

What materials can block sound? Best Soundproofing Materials and Products (with Examples ) Mass-Loaded Vinyl Sound Barrier. Acoustic Mineral Wool Insulation. Green Glue Soundproofing Compound. Resilient Sound Channels. Soundproof Drywall. Acoustic Caulk, Sealant. Soundproof Foam Panels. Soundproof Blankets. Why foam is used as a soundproofing material? The purpose of sound blocking foam is to prevent […]

Why is there a puddle under my car? The best thing you can do if you’re finding puddles of liquid under your car is to determine what the liquid is: The 3 most common types would be: Water: if it’s water, and you know you’ve been running the air conditioner or interior heater, it’s likely […]

What are the steps to draw Lewis structures? How to Draw a Lewis Structure Step 1: Find the Total Number of Valence Electrons. Step 2: Find the Number of Electrons Needed to Make the Atoms “Happy” Step 3: Determine the Number of Bonds in the Molecule. Step 4: Choose a Central Atom. Step 5: Draw […]

What are the 3 types of drawing? Different Kinds of Drawing Illustration Drawing. These are drawings that are created to represent the lay-out of a particular document. Life Drawing. Drawings that result from direct or real observations are life drawings. Emotive Drawing. Analytic Drawing. Perspective Drawing. Diagrammatic Drawing. Geometric Drawing. What are some common uses […]

Is burning of wood a convection? Wood burning fires transfer heat in the same way as many modern heating appliances. These include convection, which is a transfer of heat through air currents. Conduction is a transfer of heat through solid objects such as the ground or the bricks in a fireplace wall. What are the […]