Category: Engineering

Which of the following is an example of an IoT device? #2) What are the examples of IoT devices? Answer: There are several top devices in the market. Smart Mobiles, smart refrigerators, smart watches, smart fire alarm, smart door lock, smart bicycle, medical sensors, fitness trackers, smart security system etc., are few examples of IoT […]

What kind of force keeps you in your seat when you go around a loop on a roller coaster? inertia How do you find the speed of a roller coaster at the top of a loop? For a roller coaster loop, if it were perfectly circular, we would have a minimum speed of vmin=√gR at […]

What does a pitot tube do on an airplane? Basically, a pitot tube is used in wind tunnel experiments and on airplanes to measure flow speed. It’s a slender tube that has two holes on it. The front hole is placed in the airstream to measure what’s called the stagnation pressure. How does a pitot […]

Which is the best shielding material for gamma radiation? Lead What is the thickness of gamma radiation? Photon energy (E = 1.3325 MeV), initial radiation intensity ( = 100 mSv/hr), material #1 (Pb), material #2 (Fe), material #1 thickness (21.0 cm), and material #2 thickness (2.0 cm) were imported as the input variables into MATLAB. […]

What is a subsea well? A Subsea well is a well in which all the production systems are located on the seabed. The facilities which are under water are basically referred to as ‘Subsea’. The prefix is used for wells, field, project and the development too. What is subsea in oil and gas industry? Oil […]

At what time of the day is the demand for electricity the highest and why is this? Most of this increase in demand has occurred during the peak periods. Peak periods are the times when the demand for electricity is high – usually when everyone is using a lot of electricity at the same time, […]

What type of insulation is used for ICFs? Insulating concrete forms (ICFs) are a method of construction using components manufactured from expanded polystyrene (EPS). The forms are stacked, steel-reinforced, and then filled with concrete. When completed, ICF walls provide a solid monolithic structure. Where are insulated concrete forms used in the world? North America currently […]

Is work path dependent or independent? The work a conservative force does on an object is path-independent; the actual path taken by the object makes no difference. Why heat is a path dependent function? Two important examples of a path function are heat and work. These two functions are dependent on how the thermodynamic system […]

What is the function of a compressor in a vapor compression refrigeration system? It works as a pump to control the circulation of the refrigerant, and it adds pressure to the refrigerant, heating it up. The compressor also draws vapor away from the evaporator to maintain a lower pressure and lower temperature before sending it […]

Who may determine if an aircraft may be operated with inoperative equipment? Finally, a pilot, who is certificated and appropriately rated under 14 CFR part 61, or a person, who is certificated and appropriately rated to perform maintenance on the aircraft, must determine that the inoperative instrument or equipment does not constitute a hazard to […]