Category: Engineering

Why is a recovery period between bouts of exercise important? Active recovery prevents postexercise syncope by enhancing venous return in augmenting cardiac preload through rhythmic contractions of skeletal muscle (i.e., the muscle pump). This may be the best justification for performing a cool-down after intense exercise. Which principle of exercise is concerned with maintaining a […]

What is the stoichiometric air/fuel ratio? about 14.7:1 How is stoichiometric air fuel ratio calculated? Stoichiometric air means the minimum air in stoichiometric mixture. The stoichiometric air/fuel ratio (AFR) can be calculated from the reaction equation (g/g). For gas AFR is usually determined in m3/m3. The actual combustion air depends also on the assumed air […]

What causes vortex shedding? Vortex shedding happens when wind hits a structure, causing alternating vorticies to form at a certain frequency. This in turn causes the system to excite and produce a vibrational load. How do I stop my vortex from shedding? ABSTRACT: Vortex shedding of circular cylinders in uniform cross flow may be prevented […]

How is drill pipe displacement calculated? Open-Ended Drill Pipe Displacement Displacement = Cross-sectional Area × Length. Sample Problem. Solution: OD = 3 in. = OD Area = 0.7854 × 0.25 ft × 0.25 ft = 0.0491 ft^2. How do you calculate tubing capacity? The formula for the volume of cylinder is: cylinder volume = π […]

How does an air preheater work? Air Preheaters have a shell and tube type construction where exhaust heat from the flue gases is transferred to the air when they come in indirect contact with each other. Air Preheaters consist of a shell where tubes are arranged in a square or triangular pitch and are welded […]

How does water cement ratio affect the strength of concrete? The water–cement ratio is the ratio of the weight of water to the weight of cement used in a concrete mix. A lower ratio leads to higher strength and durability, but may make the mix difficult to work with and form. Too much water will […]

What is architecture internship? An architecture internship is the formal training needed to become certified in the profession of Architecture, and is essential for gaining well-rounded experiences, in the developmental and completed phases of design and construction projects. Are architecture internships paid? Architectural interns in the United States make an average salary of $54,675 per […]

Can you put a list in a list Python? It’s very easy to add elements to a List in Python programming. We can append an element at the end of the list, insert an element at the given index. We can also add a list to another list. If you want to concatenate multiple lists, […]

What are the 3 factors that affect your vehicle in a curve? PLAY Speed. Load of car. Sharpness of curve. Sharpness of band (steep) What three factors can affect force of impact? Speed, weight, and time between impact and stopping all affect force of impact. A driver has control over the speed. Which of the […]

What does every object at a temperature above absolute zero? Every object at a temperature above absolute zero (OK) emits thermal radiation due to kinetic energy of molecules within the object. (2-1)) if the object is a perfect emitter and absorber, i.e., a blackbody. How many times as much thermal radiation does it emit at […]