Category: Engineering

What are used to prevent soil movement and cave-ins during the excavation of earth? Sloping involves cutting back the trench wall at an angle inclined away from the excavation. Shoring requires installing aluminum hydraulic or other types of supports to prevent soil movement and cave-ins. Is a trench considered a confined space? Some examples of […]

How many ways can a 10 question multiple choice test be answered if each question has 4 possible answers? 410 ways What is the probability of guessing the correct answer to a multiple choice question if there are 5 choices? What is the probability of getting 5 multiple-choice questions answered correctly, if for each question […]

Why is friction between the rolls and work material necessary in a rolling operation? In addition to reducing the thickness of the work, the rolls also act to feed the material as they spin in opposite directions to each other. Friction is therefore a necessary part of the rolling operation, but too much friction can […]

When applying for a position you can make a positive impression by? Also, you can do this by showing up in nice attire and giving the positive reasons why you want the job (hint: don’t just say you need the money) 😉 Why do employers use job application forms? With an employment application, employers gain […]

How do you calculate angular velocity from RPM? Revolutions per minute can be converted to angular velocity in degrees per second by multiplying the rpm by 6, since one revolution is 360 degrees and there are 60 seconds per minute. If the rpm is 1 rpm, the angular velocity in degrees per second would be […]

What is slew rate formula? Slew rate = 2 π f V. Where. slew rate is measured in volts / second, although actual measurements are often given in v/µs. f = the highest signal frequency, Hz. V = the maximum peak voltage of the signal. What is meant by CMRR? Op Amp Common-Mode Rejection Ratio […]

How do I choose a tire pressure gauge? The most important decision is to get a gauge that works within the pressure range of the tires that you will be using the gauge on. For example, if you run 30 psi in your tires then you should get a 60 psi gauge. If you run […]

How do I calculate feet and inches? There are 12 inches in 1 foot. To convert from feet to inches, multiply your figure by 12 (or divide by 0.) . What is 5 ft in inches? Feet to Inches table Feet Inches 5 ft 60.00 in 6 ft 72.00 in 7 ft 84.00 in 8 […]

How does a pitot tube work? Pitot tubes work as flow sensors to measure the speed and pressure of air, liquid or gas. The front hole measures the stagnation pressure, while the side openings (static ports) gauge static pressure. The difference between these two measurements is called dynamic pressure – this is what is used […]

How long should you keep federal tax records? 3 years How long should you keep your tax records in case of an audit? three years What is the statute of limitations on federal taxes? As a general rule, there is a ten year statute of limitations on IRS collections. This means that the IRS can […]