What are tapered roller bearings used for? Pairs of tapered roller bearings are used in car and vehicle wheel bearings where they must cope simultaneously with large vertical (radial) and horizontal (axial) forces. Tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required. How are tapered roller bearings measured? […]
What is the best way to prevent skidding on a slippery road surface?
What is the best way to prevent skidding on a slippery road surface? To prevent skidding on slippery surfaces: Drive slowly and stay farther behind the vehicle ahead of you. Slow down as you approach curves and intersections. Avoid fast turns. Avoid quick stops. Shift to low gear before going down a steep hill. Which […]
What is composite fabrication?
What is composite fabrication? Composite fabrication processes typically involve some form of molding, to shape the resin and reinforcement. A mold tool is required to give the unformed resin/fiber combination its shape prior to and during cure. How do you manufacture composite materials? Composite materials are processed and cured inside a vacuum bag or a […]
What is signalized intersection?
What is signalized intersection? A signalized intersection is one where the shared space is used alternatively by a fixed number of approaches for a pre defined time interval as per the phasing scheme used for the intersec- tion. What is a protected left turn what is an unprotected left turn? Standard Green Light (called Unprotected […]
What is the compression of a 2-stroke engine?
What is the compression of a 2-stroke engine? between 90 and 110 psi What is the compression stroke on an engine? : the stroke in the cycle of an internal-combustion engine in which the gases are compressed before firing. What is the first stroke of an engine? induction stroke What are the strokes of a […]
What percentage of missing data is acceptable?
What percentage of missing data is acceptable? Statistical guidance articles have stated that bias is likely in analyses with more than 10% missingness and that if more than 40% data are missing in important variables then results should only be considered as hypothesis generating [18], [19]. What happens when a dataset includes with missing data? […]
How much wallpaper border do I need?
What is stability in numerical methods?
What is stability in numerical methods? In the mathematical subfield of numerical analysis, numerical stability is a generally desirable property of numerical algorithms. Calculations that can be proven not to magnify approximation errors are called numerically stable. What are the types of numerical methods? General methods: Bisection method — simple and robust; linear convergence. Fixed-point […]
How do you increase thrust?
How do you increase thrust? The most widely recognized method of boosting thrust is the afterburner, also known as tailpipe burning. Fuel is injected into the hot exhaust gas flowing between the turbine and nozzle. The combustion of the gas expands the airflow as it enters the nozzle, which increases thrust. Does thrust increase lift? […]
What is an oil additive give any two additive?
What is an oil additive give any two additive? Controlling chemical breakdown Typical detergents are magnesium sulfonates. Corrosion or rust inhibiting additives retard the oxidation of metals inside an engine. Antioxidant additives retard the degradation of the oil stock by oxidation. Typical additives are organic amines and phenols. What are oil additives? Motor oil additives […]