Category: Engineering

What is the meaning of sparse matrix? A sparse matrix is a matrix that is comprised of mostly zero values. Sparse matrices are distinct from matrices with mostly non-zero values, which are referred to as dense matrices. The example has 13 zero values of the 18 elements in the matrix, giving this matrix a sparsity […]

Which procedure is used when manually bleeding a brake system? Manual bleeding is the most commonly used method. The master cylinder and brake pedal are used as a pump to cause fluid to flow through an open bleeder screw. This fluid flow should flush air out. Manual bleeding should be performed smoothly so as not […]

Do you lubricate fuel injector O rings? Yes you have to lube them with something! When should I replace my fuel injector O rings? The following are some of the things that you will notice when it is time to have your fuel injector O-rings replaced: There is a noticeable fuel leak from where the […]

Do metallic crystals conduct electricity? 2: Metallic crystal lattice with free electrons able to move among positive metal atoms. Being composed of atoms rather than ions, they do not conduct electricity in any state. Why are metallic crystals good conductors of electricity? While ionic crystals alternate positive charges with negative charges, metallic crystals contain atoms […]

How does the soft palate affect the direction of the air stream? Pull-up of the soft palate moves it both upward and backward; this opens the fauces but narrows the velopharyngeal isthmus, potentially increasing resistance to airflow. Depression of the soft palate has the opposite effects. What happens to the soft palate in order to […]

How do you calculate specific volume of water? Specific Volume Formulas ν = V / m where V is volume and m is mass. ν = 1 /ρ = ρ-1 where ρ is density. ν = RT / PM = RT / P where R is the ideal gas constant, T is temperature, P is […]

Which is an example of an indirect measurement tool? With indirect measurements, the dimensions are measured using measuring instruments such as dial gauges that look at the difference between targets and reference devices such as gauge blocks and ring gauges. What is direct and indirect measurement? ‘Direct measurement’ refers to measuring exactly the thing that […]

When you look at a drawing How do you know if you are looking at us customary or SI measurements? 1. When you look at a drawing, how do you know if you are looking at U S Customary or SI measurements? Why is it important for an engineer to know this piece of information? […]

How do you measure viscosity using a viscometer? BACKGROUND Ostwald viscometer is use to determine viscosity of Newtonian fluid. η1 can be determine using following equation. η1=ʆ1t1/ ʆ2t2 X η2 ʆ1=Density of unknown liquid. t1 =Time of flow of unknown liquid. ʆ2 =Density of standard liquid. t2 =Time of flow of standard liquid. η2=Viscosity of […]

What are 3 advantages of word processing software? Advantages of Word Processing Quality : It produces error free documents. Storage of Text : We can take any number of copies with word processor. Time Saving : We can get any number of copies of document in future without retyping. Security : We can protect the […]