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Can The mass of an object can be determined by weighing the object and using a conversion factor for weight to mass?
False
Why partial safety factor of concrete is more than steel?
Concrete is unpredictable compared to steel...
A wire rope sling with a strength of 10000 pounds and a total working load of 2000 pounds has a design factor of what?
5
What are split-plot designs and nested designs?
Split-plot designs and nested designs use the same idea. However, the difference is that split-plot designs are used in experimental studies while nested designs are used in observational studies. If there are two factors (e.g. A & B) and if the experimenter adopts a split-plot design due to some constraints, such as the of lack of experimental units, then factor-A ("main plot factor") levels can be applied to the main plots, and factor-B ("sub-plot factor") levels can be applied to sub plots within each main plot. This scenario is otherwise called a completely randomized design (CRD). Here, factor-B levels are nested within each level of factor A. Also, the precision for the estimation of factor B is more than that of factor A in split-plot designs. Thus, before starting the experiment, the experimenter needs to consider which factor needs more attention and then label the main factor and the sub factor. One common mistake that the experimenter makes, when using the split-plot factor, is to ignore the importance of error terms. In split-plot design, there are two errors. The F value that is calculated for factor A uses error A, and the F value that is calculated for factor B, and its interaction, uses error B.
What importance of statistics in civil engineering?
Well...all the importance. every structural design, every safety factor, every hidrologycal analysis, every mechanical analysis, everything, even the materials used are based on statistics. The results gotten from the analysis are projected to other conditions, and the probability of them to interact together (for example, earthquake, wind and max load. Or having the highest flow and rain)
How factor of safety is determined in the design?
factor of safety are usually determined from the past statistics of the working element.
What do you mean by partial safety factor?
The factor of safety for loads is known as partial safety factor. Partial safety factor=Design load/Characteristicload
What is factor of safety?
Factor of safety is a figure used in structural and geotechnical design applications that provides a design margin over the theoretical design capacity.
What is safety factor?
Factor of safety is a figure used in structural and geotechnical design applications that provides a design margin over the theoretical design capacity.
What is the relation between yield stress and allowable stress?
A factor of safety against yield is applied to design stress Yield Stress/ Design Stress = Factor of safety The factor of safety varies for different industries; 1.5 is used in structural steel design for buildings; 1.25 or even 1.1 for aircraft/space systems
What is difference between partial factor of safety and factor of safety?
A safety factor is an aspect of design that increases strength or protection beyond that suggested as needed by calculation or other basic assessment. For example, engineering calculations might suggest a bridge needs a certain amount of strength in a support beam. That number would be increased by, perhaps, 20% as a "safety factor" in case it were to be stressed beyond its design or in case some basis for the calculation was in error.A partial safety factor is one of several safety factors applied to the same instance.
What has the author D I Blockley written?
D. I. Blockley has written: 'Bridges' -- subject(s): Bridges, Design and construction 'The nature of structural design and safety' -- subject(s): Safety factor in engineering, Structural design, Structural stability
You want at least 4 difference between limit state and working stress method of design?
factor of safety
What is the difference between factor of safety and safety factor?
There is no difference between "factor of safety" and "safety factor." They are two ways of saying the same thing.
What is the difference between a safety factor and a factor of safety?
Both are meaning the same definition. simply you put factor beyond the safety.
What is a conservative design?
A conservative design is a design within which the designer pays more attention to the loads and other predictable problems and hence he/she takes more preventive decisions just like to take a bigger design factor of safety (F.S.).
What is the factor of safety in design?
It's whatever the designers make them. It means that for an elevator for instance that the cables can take a much higher load than the elevator is rated for before the cables will snap. If the cables can take double the rated load then the elevator is said to have a safety factor of two.
